Loading…
Drop videos here to merge
or click to browse — combine MP4, MOV, AVI, MKV, WEBM, FLV, WMV, M4V, MPEG, 3GP, OGV, TS
Select videosCombine multiple videos into one seamless file — right in your browser. This free Video Merger joins MP4, MOV, AVI, MKV, WEBM and more with professional editing controls, smart compatibility detection, transitions and social export presets. Nothing is uploaded, there’s no watermark, and matching clips are joined losslessly.
Combine MP4, MOV, AVI, MKV, WEBM, FLV, WMV, M4V, MPEG, 3GP, OGV and TS clips into one seamless video.
Auto-detects resolution, frame-rate, codec, aspect-ratio and audio differences and fixes them for you.
Identical clips are stream-copied with zero re-encode — instant, with no quality loss at all.
Reorder by drag-and-drop, trim, crop, rotate, flip and adjust each clip before you merge.
Add fade, crossfade, dissolve, slide, zoom or blur transitions between clips with custom duration.
One-click presets for YouTube, Shorts, TikTok, Reels, Feed, Facebook, LinkedIn, X and more.
Choose resolution up to 4K, frame rate, video & audio codec and container — or keep the original.
No upload, no account, no watermark. Everything runs in your browser, forever free.
Drag and drop your clips, or click to browse. Add as many as you like — multiple files and bulk upload are supported.
Drag clips to reorder, or use Move Up / Move Down. The numbered timeline previews the exact merge sequence.
Choose a merge mode (Auto is recommended), an output format, resolution and frame rate. The compatibility panel flags any differences.
Trim or adjust individual clips and add transitions between them. Preview everything before you commit.
Click Merge Videos. When processing finishes, preview the result and download your combined video — no watermark.
A video merger is a tool that joins two or more video clips into a single continuous file. Instead of sharing five separate clips, you stitch them together end-to-end so they play as one video — perfect for vlogs, tutorials, highlight reels, montages, product demos and social stories.
This Video Merger lets you combine videos online for free, directly in your browser. There is nothing to install and nothing to upload: your clips are decoded and merged on your own device using WebAssembly FFmpeg, the same engine professional tools rely on. That means real merging — not a preview — with full control over resolution, frame rate, codec, transitions and order.
Because it runs locally, it doubles as a private online video joiner: a fast, secure way to combine multiple videos without sending your footage to a stranger’s server.
Merging videos with this tool takes under a minute. Add your clips, set the order, choose how you want them combined, and download the result. The compatibility engine handles the hard parts — matching mismatched resolutions, frame rates and codecs — so the final video plays smoothly everywhere.
Combining clips into one file makes your content easier to publish, share and watch. A single video uploads faster, keeps viewers in one place, and is far simpler to caption, schedule and archive than a folder full of fragments.
For creators, a merged video means smoother storytelling — intro, body and outro flow together. For businesses, it means polished demos and presentations. For everyone, it means no more sending “part 1, part 2, part 3” to friends and family.
You can merge MP4, MOV, AVI, MKV, WEBM, FLV, WMV, M4V, MPEG, MPG, 3GP, OGV and TS videos — and mix formats freely in the same project. The tool reads each clip’s real codec and dimensions, then normalizes everything to one clean output.
Export to MP4, MOV, MKV, WEBM, M4V or AVI. MP4 with H.264 is the safest, most universal choice; WebM/VP9 is ideal for the web; MKV holds any codec; MOV suits Apple and editing workflows.
When your clips already share the same codec, resolution and frame rate, the merger uses a lossless stream-copy join: the original video data is concatenated without being re-encoded. The result is byte-for-byte identical quality, and it finishes almost instantly.
When clips differ, a re-encode is unavoidable — but you stay in control. Pick the High-Quality mode with a low CRF for the sharpest result, keep the highest source resolution, and choose an efficient codec like H.265 or AV1 to hold quality at a smaller size.
Built-in export presets size your merged video perfectly for each platform. Choose YouTube or LinkedIn for 1080p landscape, YouTube Shorts, TikTok or Instagram Reels for 9:16 vertical, Instagram Feed for 1:1 square, or WhatsApp, Telegram, Discord and Email for compact, fast-sharing files.
Each preset sets the resolution, aspect ratio, frame rate, codec and container in one click, and the Fit / Fill / Stretch controls decide how clips of a different shape sit inside the frame.
For most people: MP4, H.264 video, AAC audio, “Keep highest resolution”, original frame rate, CRF 21. It plays everywhere and balances quality and size.
For the web: WebM with VP9 and Opus. For maximum quality archives: MKV or MP4 with H.265/AV1 and a low CRF. For email or chat: a 480p MP4 preset to stay under size limits. If every clip already matches, leave the mode on Auto — the tool will join them losslessly.
Your videos never leave your computer. All decoding, editing and merging happens inside your browser tab with WebAssembly FFmpeg, so there is no upload, no cloud copy and no third party handling your footage.
Only small pieces of project metadata — clip names, order and your chosen settings — can be saved locally so you can pick up where you left off. The video bytes themselves are held in memory and released as soon as the merge completes.
| Lossless copy | Re-encode | |
|---|---|---|
| Speed | Near-instant (no encoding) | Depends on length & quality |
| Quality | Identical to source (no loss) | Controlled by CRF / bitrate |
| Requirements | Clips must share codec, size & fps | Works with any mix of clips |
| Transitions / edits | Not available | Fade, crop, trim, rotate, etc. |
| Resize / reformat | Keeps original | Any resolution, fps or codec |
Join intro, footage and outro into one upload, with transitions and a YouTube or Shorts preset.
Combine lecture segments or screen recordings into a single, easy-to-share lesson.
Merge product clips and testimonials into a polished demo or ad in seconds.
Turn dozens of phone clips into one highlight reel for the family group chat.
Stitch your best moments into a montage and export straight for TikTok or Discord.
Batch-merge story snippets into formatted Reels and Feed posts with the right aspect ratio.
Your clips are decoded and merged locally with WebAssembly FFmpeg — they never touch a server.
Nothing is saved in the cloud. Only lightweight project metadata (names, order, settings) stays in your browser.
In-memory buffers are released the moment a merge finishes or you close the tab.
The page is served over HTTPS with strict, cross-origin-isolated headers for fast, safe processing.
Joining clips end-to-end so they play one after another as a single file.
Combining clips without re-encoding, keeping the exact original quality. Only works when clips match.
Decoding and re-compressing clips to a uniform format so any mix can be merged.
Constant Rate Factor — a quality dial (lower = better quality, bigger file). 18–23 is the sweet spot.
The compression format of the video (H.264, H.265, VP9, AV1) or audio (AAC, MP3, Opus).
The file wrapper (MP4, MOV, MKV, WebM) that holds the video and audio streams.
The width-to-height shape of the frame, e.g. 16:9 landscape or 9:16 vertical.
A visual blend between two clips, such as a fade or slide, instead of a hard cut.
Shrink your merged video for email or social.
Convert any video to MP4 and other formats.
Scale a video up or down to a target resolution.
Cut and trim a single clip to the exact moment.
Convert audio tracks to MP3 and back.
Join multiple audio files into one track.
Turn a video clip into an animated GIF.
Reduce the size of any file fast.