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How to use Compare Folders
- Step 1
Select Folder A and Folder B
Choose a folder or ZIP archive for each side. The page supports folder-to-folder, folder-to-ZIP and ZIP-to-ZIP comparisons. Review the selected root locations and relative paths so the two sets represent the directories you intend to compare.
- Step 2
Choose a Comparison Method
Use Quick for relative paths, Standard for file size and modified dates, Deep for content hashes, or AI Smart for rename, move and duplicate detection. Choose an available checksum algorithm and case option to match your verification needs.
- Step 3
Review Differences and Export
Inspect the visual folder tree, status filters, missing and changed files, and any line-level text differences. Review the summary and available sync suggestions, then download a comparison report or save a snapshot for later checks.
Key features
Visual Folder Tree
Explore both directory hierarchies side by side, expand subfolders and filter items by relative path, file category or comparison status.
Four Comparison Modes
Choose Quick, Standard, Deep or AI Smart according to whether you need a path inventory, metadata review, hashes or smart grouping.
Content Checksum Verification
Use MD5, SHA-1, SHA-256 or SHA-512 as available to compare exact file content and reduce reliance on names or timestamps.
Missing and Modified File Reports
Identify files present only in one location and paths whose content or metadata differs from the other side.
Duplicate and Rename Discovery
Use deep-content information to discover exact duplicates and identify files that have identical bytes under a changed name or location.
Line-by-Line Text Differences
Inspect changed source-code, text and configuration files with line-level highlighting instead of treating every edit as an opaque binary change.
Folder Snapshots
Save a comparison baseline and check a later folder selection against the earlier snapshot to detect added, removed or changed items.
Exportable Comparison Evidence
Save comparison findings as PDF, CSV, Excel, JSON or XML for backup reviews, migrations, project handovers and audits.
What Is Folder Comparison and What Does It Check?
A folder comparison tool evaluates two directory trees to show where their file collections match and where they differ. Instead of manually opening dozens of nested folders, you can examine relative paths, filenames, sizes, modification timestamps and, when needed, content checksums. The resulting inventory helps answer a specific question: which files exist in only one location, which copies differ, and which files are identical despite a different name?
MyToolSpace Compare Folders offers a browser-based workflow for two folders or ZIP archives. It groups results such as matching, missing, modified, renamed or duplicated files and displays a visual tree. These categories are useful for backup validation, project-version checks, migration review and photo-library cleanup. A reported difference is a clue requiring action, not automatically proof that either side is the correct version.
Comparison is not the same as synchronization or recovery. The tool helps you inspect and export differences; choose which files to retain or copy after checking ownership, timestamps, source authority and backup status. For high-value data, preserve an untouched original and verify a restored copy before deleting anything.
Relative Path: A file is normally matched using its position below the selected root folder, not only its basename.
Content vs Metadata: Two equal-size files can contain different bytes; Deep mode examines file content.
Quick, Standard, Deep and AI Smart Folder Comparison Explained
Quick mode compares relative paths and is convenient for answering whether the same filenames appear under the same subfolders. It does not verify what is inside each file. Standard mode extends that first pass with size and modification-date information, helping you spot likely changes without reading every byte. It is practical for routine checks when time and browser resources matter.
Deep mode reads file content and computes checksums to distinguish identical bytes from different bytes. It is the stronger choice when confirming a backup or migration copy; however, hashing large videos or thousands of documents takes time and memory bandwidth. AI Smart mode is described as adding rename and move detection plus duplicate grouping on top of the deeper analysis. This name should not be mistaken for a guarantee of semantic AI interpretation of every document.
For a sensible workflow, begin with Quick or Standard when the folder set is unfamiliar, then run Deep or AI Smart on the relevant files. If two copies have different timestamps but matching SHA-256 values, their byte content matches even though their metadata differs. Choose the comparison mode to match the question, not merely the fastest-looking setting.
Quick and Standard: Prioritize file inventories and metadata discrepancies.
Deep and AI Smart: Prioritize content integrity, exact duplicates and likely moved or renamed copies.
Choose Scope: Hash only the data you need when working with very large archives.
Review Findings: A mode may reveal additional differences rather than contradict an earlier shallow check.
How SHA-256, SHA-512, SHA-1 and MD5 Help Compare Files
A checksum is a short digest derived from a file’s bytes. Comparing digests is an efficient way to test whether two files have the same content without displaying every byte. The live tool lists MD5, SHA-1, SHA-256 and SHA-512. Deep comparisons can distinguish a changed file from an exact duplicate even if filenames and timestamps are unhelpful.
SHA-256 is a strong default for ordinary integrity review, while SHA-512 is another modern hash option. MD5 and SHA-1 remain useful for legacy comparison or identifying accidental changes, but their known collision weaknesses make them unsuitable as the sole security proof when an attacker may deliberately craft matching hashes. A matching digest is strong evidence of equality for normal backup checks, not a substitute for provenance or authenticity validation.
Hash checks verify the selected file bytes, not whether the data was correct when originally created. If a damaged source was copied faithfully, both sides may have the same bad content. For critical backups, combine checksum matching with restore tests, file-opening checks, retention rules and an independent trusted source when available.
SHA-256 Default: A practical digest for confirming exact copies in ordinary integrity workflows.
Legacy Hash Caution: Do not depend on MD5 or SHA-1 alone for adversarial authenticity decisions.
Find Missing, Extra, New and Modified Files Between Folders
A missing-file result describes a path absent on one side of the comparison; the same item may be labelled extra when viewed from the other side. This direction matters: Folder A may represent an original project and Folder B its backup, or the roles may be reversed. Check the report column headings before concluding that a file was lost or newly introduced.
Modified results depend on your mode. Standard comparison can flag changes in size or date, while Deep considers actual file bytes. A renamed file may initially look like one deletion and one addition because its path changed. AI Smart can link copies with identical content at different locations and classify possible renames or moves.
When differences appear, check both versions rather than automatically replacing the newer timestamp with the older one or vice versa. Photos, spreadsheets, edited scripts and office documents may have legitimate divergent versions. Decide the authoritative source, make a backup and reconcile differences deliberately.
Missing Is Directional: The report depends on whether Folder A or Folder B is the baseline.
Modified Is Mode-Dependent: Filename, metadata and actual-byte changes are different signals.
Renames Need Content Evidence: Matching hashes can connect files whose relative paths changed.
Never Auto-Delete: Inspect every proposed removal before reclaiming storage.
Find Duplicate Files, Renamed Files and Moved Files
Exact duplicates share identical byte content even if their names or locations differ. The tool can group identical hashes across both selections and estimate the space those duplicate copies occupy. This is useful for image libraries, downloads, document collections and backups where duplicate files accumulate over time.
A moved file usually has the same content and filename in a different relative directory, while a renamed file has the same content with a different basename. The underlying hash relationship can help reveal either change. If a file was both moved and edited, its checksum will change; it may no longer qualify as an exact rename match even when a person recognizes the content.
Duplicate detection should not be treated as deletion permission. Two identical contracts or project assets may exist in separate required locations. Preserve backups and copies referenced by applications. The estimated reclaimable size is a planning metric that may differ from physical space recovered because of filesystem links, compression or storage deduplication.
Exact Duplicates: Hashes identify byte-for-byte equality, not merely visually similar images.
Keep Required Copies: A duplicate can still be essential for backup, application paths or recordkeeping.
Compare Folder vs Folder, Folder vs ZIP or ZIP vs ZIP
The comparison workbench supports selecting local folders and ZIP archives as input. A ZIP archive represents a stored directory structure, so the tool can unpack its entries in the browser and compare their relative paths with another selected folder or ZIP. This makes it easier to check website release packages, downloaded backup archives and distributed project bundles without manually reconstructing their file lists.
ZIP entries may contain extra wrapper folders, unusual path separators, renamed roots, or timestamps that differ from locally extracted files. Match the intended root paths before interpreting an all-missing result. The documented browser workflow specifically describes ZIP; do not assume RAR, 7Z, encrypted ZIP variants or multipart archives can always be read.
An archive comparison helps check which stored files match, but a positive result does not certify the archive is malware-free or permanently recoverable. Keep an independent copy and perform a restore test when archive integrity is business-critical.
Normalize Roots: Compare matching subfolder levels so path differences are meaningful.
Check Archive Support: ZIP is documented; other archive formats may need a separate extractor.
Compare Code, Text and Configuration Files Line by Line
A file-level hash tells you whether bytes differ, but a line-level diff explains many text changes. The tool describes a Myers diff engine with highlighting for changed source code, notes and configuration files. Developers can inspect edits to TypeScript, JavaScript, Python, YAML, JSON, XML, HTML, CSS and other text files where their contents are interpretable as text.
Whitespace and case options can make a review easier, but a seemingly cosmetic edit may still matter. Whitespace is meaningful in Python; letter case can be meaningful in imports, Linux paths and environment variables. A JSON key spelling change or a YAML indentation change can change behavior even when surrounding text looks similar.
Use line-level comparison for human review and Deep checksums for whole-file equality. Binary PDFs, compiled files, video, audio and compressed formats are not reliably explained by line differences. Use specialized document, image or media viewers for content-level interpretation when needed.
Text Diff: Highlights additions, deletions and changed lines for readable files.
Binary Files: Hash and metadata comparison cannot describe every internal document or media change.
Whitespace Controls: Use with care where spacing or case changes program behavior.
Deployment Review: Compare configuration and static assets before publishing a build.
Verify Backups, NAS Replication and Cloud Storage Migrations
Backup verification should answer more than whether a folder has the expected name. Compare the source and backup directory trees, identify missing paths, then use Deep mode with SHA-256 for a byte-level check. If you are validating a backup created some time ago, expected differences may exist because the source changed after the backup snapshot. Always compare versions from the same intended point in time.
For NAS replication or cloud migrations, download or make both accessible copies available to the browser and compare them as Folder A and Folder B. Local directory access does not mean the tool automatically connects to a cloud account or remote server. Consistent file ordering, path normalization and exportable exceptions help teams resolve copying mistakes.
Never destroy the original dataset solely because one folder comparison reports a high similarity score. First test restoring representative files and applications, verify permissions and hidden metadata with suitable system tools, and document excluded files. The browser comparison can establish useful file-content evidence, but it does not replace an end-to-end disaster recovery test.
Compare Equivalent States: Choose source and backup snapshots from the same time where possible.
Test Restores: An exact file copy is not automatically a functioning recovery plan.
Use Folder Tree Filters, Search and Folder Health Scores
Large comparison outputs need a usable review interface. The side-by-side folder tree displays nested paths and highlights statuses so a reviewer can move from a broad mismatch to individual files. Filters by status, type or path can isolate only missing files, only changed documents, or files under a specific project directory.
Folder health or integrity scores are useful summaries of the tool’s own comparison indicators. They should not be read as an independent certification that a backup is secure, compliant, restorable or free of malware. Review the underlying exceptions instead of relying on a single percentage.
When sharing results, explain which folder was the baseline, comparison mode, checksum algorithm and any ignored case or whitespace options. A filtered view can hide legitimate differences; export a full report when the audience needs a complete audit trail.
Review Underlying Files: A score summarizes differences; it is not a security assessment.
Keep Filter Context: Document active filters so reviewers know what was excluded.
Save Folder Snapshots and Export Comparison Reports
A saved snapshot captures a reference view of a folder that can be used in a later comparison. It supports tracking a project, archive or backup location over time without keeping both live copies open for each check. Snapshot fidelity depends on the stored metadata and checksums and on the tool’s available snapshot settings; do not assume it contains a full backup of file bytes.
The page lists exports to PDF, CSV, Excel, JSON and XML. Human-readable PDFs can support review meetings; CSV or Excel suits sorting missing and modified file lists; JSON or XML can feed an authorized internal workflow. Exported files may include sensitive filenames, directory structures and hashes, so distribute them carefully.
Before using a report as audit evidence, record the date, the selected roots, the mode, relevant options, and who performed the review. A comparison report documents what the chosen inputs showed at the time; it does not prove future synchronization or permission-level equivalence.
Snapshot Is Not Backup: Keep the underlying files in a separate protected copy.
Choose Export Format: Use PDF for reading and CSV/JSON for downstream processing.
Record Method: Document selected roots, hash algorithm and comparison options.
Protect Filenames: Reports may reveal internal directory and client naming information.
Browser Privacy, Large-Folder Performance and Security Considerations
The website describes scanning, ZIP unpacking, hashing and local folder comparison in the browser without uploading selected folder content. That is a meaningful distinction from a server-side upload workflow, but any use of a third-party site should still follow organizational policy. A separate REST API is advertised; do not assume its data handling is identical to the local web workbench.
Large comparisons can consume CPU, browser memory and time, especially when calculating SHA-256 across videos or many files. Start with Quick or Standard to understand the dataset, then deepen the check selectively. A browser may restrict folder access, skip inaccessible files or stop an exceptionally large operation; an incomplete scan must not be interpreted as a clean result.
Hashes and filename reports are not antivirus scans. ZIP archives may contain suspicious entries, very large compressed files or unsafe paths. Avoid opening untrusted content indiscriminately. Use appropriate security tools for malware inspection and access-control auditing, and use the browser UI only with content you have permission to review.
Local Workbench: The page describes local scanning; review the policy before confidential use.
Separate API: API processing and retention need their own verification.
Folder Compare vs Folder Sync, Duplicate Finder and File Merge
A folder comparison tool creates an evidence-based difference inventory. A synchronization tool copies, updates or removes files to reconcile two locations. Running a comparison first helps prevent unintended overwrites, especially when multiple people changed different copies or when the wrong directory was chosen as the source.
A duplicate finder focuses on identical content and storage cleanup. A file merger combines supported files or bundles them; it does not validate two directory trees for equality. A text diff checker focuses on the contents of individual textual inputs. Choose Compare Folders when the main task is a hierarchy-level view of which files match, changed or went missing.
For an efficient process, inspect Folder A and Folder B, export the differences, make a reviewed reconciliation plan and then carry out any file moves or deletions using authorized file-management tools. Save a fresh comparison after the operation to verify the intended result. Search phrases such as iLoveMyToolSpace, smallmytoolspace, cloudmytoolspace and pdfmytoolspace are informal branded discovery terms, not extra comparison methods or affiliations.
Compare First: Understand differences before copying, overwriting or deleting.
Recheck Afterwards: Run another comparison after applying approved changes.
Folder Comparison Modes and Best Uses
Compare speed against verification depth before choosing a mode.
| What it compares | Useful scenario | Important limitation | |
|---|---|---|---|
| Quick | Relative paths and filenames | Fast inventory of two directory trees | Does not validate bytes or timestamps |
| Standard | Paths, sizes and modification dates | Regular sync and change checks | Matching metadata cannot prove content equality |
| Deep | Paths and file-content hashes | Backup integrity and migration verification | Hashing can be slow on large datasets |
| AI Smart | Deep hashes plus rename, move and duplicate grouping | Reorganized archives and duplicate audits | Edited moved files may not be matched as renames |
| Saved Snapshot | Current folder versus saved reference | Changes over time | Snapshot is not a full duplicate of stored file contents |
How to Interpret Folder Difference Statuses
Interpret results relative to Folder A and Folder B; never assume direction without checking.
| Interpretation | Next action | |
|---|---|---|
| Matching file | The compared evidence matches according to the selected mode | Keep unchanged unless the source is independently known to be damaged |
| Missing from Folder B | A path appears in A but not B | Confirm intended roots and copy only if authorized |
| Only in Folder B | A path appears in B but not A | Check whether it is a valid addition, backup-only file or stale copy |
| Modified path | Same relative path but metadata or bytes differ | Inspect both versions and choose an authoritative source |
| Renamed or moved | Same content appears at a different relative path | Confirm whether relocation was intentional |
| Exact duplicate | Different entries share a matching content checksum | Review retention needs before any deletion |
| Date mismatch | Modified dates are different | Use Deep hashes to test whether byte content is actually identical |
Folder Comparison Preflight and Review Checklist
A practical checklist for stronger backup, development and migration decisions.
| Recommended check | Why it matters | |
|---|---|---|
| Before selection | Confirm access and retain an untouched source copy | Prevents accidental loss and unauthorized checks |
| Compare roots | Remove accidental extra wrapper directories | Avoids false all-missing reports |
| Choose mode | Start shallow and switch to Deep for integrity | Balances speed against content certainty |
| Check case | Match case behavior to the target filesystem | Case differences may be significant on some systems |
| Choose hash | Prefer SHA-256 for typical integrity review | Avoids overreliance on collision-prone legacy digests |
| Review gaps | Investigate scan failures and skipped files | Incomplete results are not proof of equality |
| Review duplicate files | Identify all dependent copies and backup requirements | Not every byte-identical file is safe to delete |
| Export evidence | Save PDF/CSV/JSON report with baseline context | Makes follow-up and auditing reproducible |
| After reconciliation | Run the comparison again after approved changes | Confirms the intended synchronization outcome |
Common use cases
Backup Administrators
Verify a backup folder against the source and flag missing or changed files before approving a retention or recovery milestone.
Cloud Migration Teams
Compare locally accessible before-and-after exports from cloud storage to spot unexpected omissions, new paths or altered copies.
NAS and Storage Operators
Review replicated directory trees and use deeper checksums on critical data instead of relying on file totals alone.
Software Developers
Find changed files between source branches, packaged releases and builds, then open line-level diffs for readable code and configuration.
Website Deployment Teams
Compare built website assets, HTML, styles and scripts against a deployed-copy folder to investigate missing release files.
Photographers and Creators
Discover exact copies across photo or video directories and distinguish renamed files from content-changed exports.
Business Operations
Audit shared project folders for misplaced documents, unexpected additions and inconsistent handover copies.
Researchers and Students
Check datasets, experiment outputs and assignment archives before sharing results or overwriting older versions.
IT Auditors
Export structured inventories of folder differences to support internal checks while retaining separate evidence of permissions and system controls.
Practical tips
Choose the Same Logical Root
An extra top-level project folder can make matching files appear missing. Select equivalent levels and confirm the relative-path preview.
Start With a Quick Inventory
Use Quick or Standard to estimate the number of differences before investing time in deep checksums across an unfamiliar collection.
Use SHA-256 for Byte Integrity
When verifying backup content, use a modern checksum and compare corresponding files rather than relying solely on sizes and dates.
Keep an Original Backup
Do not remove, rename or overwrite the source folder until you have reviewed the comparison and verified that any replacement is recoverable.
Review Duplicate Retention
Exact duplicate bytes do not necessarily mean an unnecessary copy. Consider retention schedules, dependent programs and backup policies.
Check the Case-Sensitivity Option
A filename difference that matters on one operating system may be ignored on another. Align settings with your actual destination.
Use AI Smart for Renamed Files
When a migration reorganizes folders, content-based rename and move detection can explain why a simple path compare reports many additions and deletions.
Treat Text Diff Context Carefully
Ignoring whitespace is useful for cosmetic edits but may hide meaningful changes in Python, YAML or other whitespace-sensitive data.
Export Before Making Changes
Save a CSV, Excel, JSON or PDF report with the scan date and selected roots to support a reproducible reconciliation plan.
Use Snapshots for Ongoing Checks
Save a baseline and compare it later, while keeping a separate genuine backup of original bytes and important metadata.
Stage Very Large Comparisons
Split unusually large collections into logical sections or start in Standard mode to avoid browser resource exhaustion during full hashing.
Respect Data and API Boundaries
The web page describes local comparisons; review organizational privacy rules and API terms separately for any server-based automation.
Frequently asked questions
What is Compare Folders on MyToolSpace?
It is a browser-based folder comparison tool that examines two selected folder or ZIP structures and reports matching, missing, modified, duplicate and renamed items according to the chosen mode.
How do I compare two folders online?
Choose Folder A and Folder B, select Quick, Standard, Deep or AI Smart, run the comparison and review the visual tree and summary. Export a report if you need to record the findings.
Is the folder comparison tool free?
The live page presents the browser comparison tool as free without an account. A separately advertised API has its own published pricing and should not be confused with the local workbench.
Can I compare a folder with a ZIP archive?
Yes. The page describes folder-versus-ZIP comparisons. Confirm the ZIP root directory corresponds to your selected folder so identical files have comparable relative paths.
Can I compare two ZIP files?
Yes, two ZIP archives can be compared through the documented interface. Password-protected or unusually structured ZIPs may have limitations and need separate preparation.
Does it support RAR and 7Z archives?
The folder comparison workflow explicitly documents ZIP archives. Do not assume RAR or 7Z is directly supported; extract a permitted copy using an appropriate archive tool first.
How is Quick different from Standard?
Quick examines relative filenames and paths, while Standard also considers file sizes and modification dates. Neither provides the content-integrity assurance of Deep hashing.
What does Deep folder comparison check?
Deep mode computes content checksums and compares file bytes indirectly through hashes. It can reveal files that look similar by name or size yet differ in actual content.
What does AI Smart mode do?
The documented AI Smart option extends deep content comparison with duplicate grouping and the identification of moved or renamed files. It does not imply semantic AI review of every file type.
Does the tool use SHA-256?
Yes. The page lists SHA-256, SHA-512, SHA-1 and MD5 among available digest methods. SHA-256 is a reasonable default for routine content-integrity review.
Are MD5 and SHA-1 secure for verification?
They can detect many accidental changes but have known collision weaknesses. Use SHA-256 or SHA-512 rather than treating MD5 or SHA-1 as an authoritative adversarial security proof.
Can two different files have the same name and size?
Yes. Two files can share name and byte count yet contain different bytes. Deep content hashes are better suited to distinguishing such cases.
How can I find files missing from my backup?
Choose your intended original as one side and the backup as the other. Filter missing entries and review the direction of each result before deciding which items require copying.
How can I check whether a backup is identical?
Compare corresponding directory trees in Deep mode with a strong hash, investigate any exceptions and perform restore tests. Matching content alone does not verify backup permissions or application recoverability.
Will it find identical files with different filenames?
In deep or smart analysis, matching content hashes can identify exact duplicates even when their names differ. The identification is about byte equality, not visual or semantic similarity.
Can it identify renamed files?
AI Smart uses content identity at different paths to identify likely renamed or moved copies. A renamed file that was also edited may not be recognized as an exact move.
What is the difference between a moved file and a changed file?
A moved file retains its bytes at another relative path, while a changed file has different content. The tool can use hashes and paths to help distinguish them.
Does it find duplicate photos and videos?
It can detect byte-for-byte duplicate media using hashes and inspect certain media metadata. Two visually identical images saved with different compression settings will usually have different file hashes.
Can it compare PDF and DOCX documents?
It can compare the files as entries and detect exact-byte differences. A binary-file hash does not provide a complete semantic comparison of paragraphs or PDF layout.
Can it compare source-code folders?
Yes. The page describes line-level diffs for text and code files alongside folder-level differences. Review encoding, whitespace and case options when interpreting edits.
Does the line diff ignore whitespace?
The page describes options to ignore whitespace or case in text/code comparisons. Those options help with review but may hide differences important to a program or configuration.
Can it compare two folders from Google Drive or Dropbox?
You can compare accessible local or downloaded folder copies. The published workbench does not establish direct authorization or live sync connections to every cloud service.
Can it verify an NAS migration?
Yes, provided both datasets are accessible as selectable folders or ZIPs. Compare corresponding points in time and investigate skips, timestamps, permissions and restore behavior separately.
Does it modify the source files?
The page describes a comparison and reporting workflow rather than an operation that overwrites the selected source files. Exported reports and separately saved snapshots are new artifacts.
Will it automatically synchronize or delete files?
It produces comparison findings and sync suggestions; do not assume it carries out automatic deletion or full two-way synchronization. Use approved file-management workflows after review.
Can I save the results?
Yes. The page lists PDF, CSV, Excel, JSON and XML report exports, as well as snapshot functionality for later comparison.
What is a folder snapshot?
A snapshot is a saved reference of folder information for subsequent change comparison. It should not be mistaken for a complete backup that preserves every file for restoration.
Where are snapshots saved?
The live page advertises saved snapshots but does not establish a guaranteed cross-device storage or retention policy. Check the current interface and export necessary evidence separately.
What does a folder health score mean?
It summarizes comparison findings under the tool’s own method. It does not certify security, compliance, recovery readiness or the absence of malicious files.
What does a similarity percentage mean?
It reflects the tool’s comparison metric for the selected folder contents. The percentage is not a plagiarism score or a guarantee that both datasets meet all operational requirements.
Why are the same files marked modified?
Timestamps, file size or bytes may differ, depending on the mode. Try Deep hashing to determine whether apparent metadata differences also correspond to content changes.
What does ignoring case change?
It changes whether differently capitalized path names are treated as distinct. This matters because Windows, macOS and Linux configurations may have different filename case behavior.
What browsers support directory selection?
Directory upload depends on browser APIs and permissions. Updated desktop browsers commonly offer folder selection, but availability varies by browser and platform.
Can I compare folders on a phone?
Some mobile browsers limit directory selection, file access or memory. For large folder trees or precise subfolder selection, a compatible desktop browser is generally more practical.
Can I compare millions of files?
The page does not guarantee an unlimited file count. Browser memory, operating-system file access and hashing time may constrain very large scans; break them into smaller batches when needed.
Is there a maximum folder size?
No universal tested limit is established in the visible page details. Actual capacity depends on the device, browser resources, archive complexity and comparison mode.
Can I compare encrypted ZIPs?
Encrypted ZIP compatibility is not guaranteed by the documented folder workbench. Use an authorized extraction workflow and compare the accessible contents if the ZIP cannot be read.
Are folders uploaded to MyToolSpace servers?
The published browser workbench states that selected folder scanning, hashing and comparison happen locally. The separate API is a different workflow; review its privacy terms independently.
Is the tool GDPR certified?
A privacy-oriented architecture does not by itself establish certification or legal compliance. Assess policies, lawful basis, retention and organizational requirements for your own use case.
Can exported reports expose sensitive information?
Yes. File paths, filenames, sizes and hashes can reveal project structure or confidential identifiers. Review and restrict report sharing just as you would any internal inventory.
Can this replace WinMerge or Beyond Compare?
It supports useful web-based inventory and diff tasks, but desktop tools may offer different filesystem integration, merge controls and scripting. Select the tool that fits the specific workflow.
Does folder comparison detect malware?
No. Hashing and differences do not replace an antivirus or malware scanning service. Compare files with permission and use appropriate security tools for suspicious archives.
Troubleshooting
| Problem | Likely cause | What to do |
|---|---|---|
| All files are shown as missing | The two selections may include different top-level wrapper directories or inconsistent relative paths. | Inspect the root folders and compare matching directory levels; rebuild a ZIP without an unnecessary outer folder if appropriate. |
| Deep comparison is very slow | The browser must read and hash many bytes, potentially including large media files. | Start with Standard mode, exclude unrelated data and run deep checks on smaller logical groups; keep the browser responsive. |
| Browser does not let me select a folder | Directory selection may be blocked by the browser, device or permissions. | Use an updated compatible desktop browser, grant requested access or prepare a ZIP that the tool can read. |
| ZIP archive is rejected | The ZIP may be malformed, encrypted, multipart or use unsupported methods. | Test with a normal ZIP extraction tool and create a standard authorized ZIP copy before comparison. |
| RAR or 7Z archive is not recognized | The documented comparison inputs include folders and ZIP archives, not guaranteed RAR or 7Z support. | Extract the permitted archive through a suitable external or MyToolSpace archive workflow, then select its folder. |
| Files with different dates appear modified | Standard mode checks modified timestamps even if bytes are identical. | Switch to Deep mode with SHA-256 to determine whether contents are actually different. |
| Same-size files appear matching in Standard mode | Matching metadata can miss changes to bytes when file size and date remain the same. | Use Deep content hashing for verification instead of relying on metadata alone. |
| Renamed files look like deletions and additions | Quick and Standard comparison primarily matches file paths. | Choose AI Smart to identify exact-content files that changed names or paths. |
| Renamed and edited file is not detected as moved | A content change produces a new checksum, breaking the exact-content rename relationship. | Inspect the file manually and compare versions with the appropriate text or media tool. |
| Text diff results are confusing | Encoding, line endings, whitespace, indentation or minified lines can make simple edits look large. | Normalize only when appropriate, examine case and whitespace toggles and verify differences against original code. |
| Duplicate photo is not found | Visually similar photos may be recompressed or resized and therefore contain different bytes. | Use an image similarity tool for visual matches; content hashes are for exact duplicates. |
| Browser freezes while hashing | Large file collections, decompression or insufficient available memory can exhaust the browser. | Close other heavy tabs, compare smaller sets and select Quick or Standard before deeper checks. |
| Some folders do not appear | Empty directories may not be represented by uploaded file lists, or permissions may prevent reading entries. | Confirm browser selection and examine the source using a native file manager for empty folders and skipped paths. |
| Results differ across Windows and Linux | Filename case sensitivity, separators or timestamps can differ between platforms. | Review ignore-case options, normalize root paths and use content hashes when verifying actual bytes. |
| A ZIP-to-folder comparison has strange paths | Archive entries may use a different root name or nested wrapper hierarchy. | Compare the same logical root and inspect ZIP entry paths before interpreting exceptions. |
| The comparison report does not download | Pop-up blocking, download permissions or browser memory limits may prevent export. | Allow the browser to save files, try a smaller report format and retry after freeing device resources. |
| Snapshot comparison reports unexpected changes | The saved baseline may represent a different root, date or comparison setting. | Check the snapshot metadata and reselect the intended folder and matching comparison options. |
| The same file is duplicated in different folders | Multiple required locations can hold byte-identical files. | Review the duplicate group and storage policy; do not delete copies solely because their hashes match. |
| Cannot find the missing-file list | Status filtering or tree collapsing may hide missing-only entries. | Clear filters, expand relevant branches and export a full difference list for searching. |
| Health score looks good but files are missing | A summary metric can conceal exceptions that matter disproportionately. | Review each missing or modified critical file; do not use the score as a substitute for a full verification. |
| Hash algorithm results look inconsistent | Digest strings from different algorithms cannot be compared directly. | Use the same algorithm on both files and compare same-type digests; prefer SHA-256 for routine integrity checks. |
| Code files cannot open in the line-diff viewer | The file may be binary, unusually encoded or too large for text diff handling. | Use a compatible text encoding, open a smaller excerpt or rely on file-level checksum results. |
| The compare button seems unresponsive | One side may be unselected or file scanning may still be blocked or incomplete. | Check both inputs, review browser access permissions and retry with two small test folders. |
| Confidential filenames appear in an exported report | Reports record path and metadata details that may reveal internal information. | Store reports with appropriate permissions, redact before sharing and review organizational data rules. |
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