Uwarp

Merge 2–6 clips end-to-end. First run downloads FFmpeg (~25 MB) once in this browser. Processing stays on your device.

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Merge videos online free — video merger & combiner

Merge videos online free. Free video merger — combine multiple video clips, stitch MP4 files, and append videos into one MP4 in your browser, no server upload.

What is a video merger / merge videos tool?

A merge videos tool (also searched as video merger online, combine multiple video, or stitch MP4 files) appends clips end-to-end into one file. Use it to merge clips online, combine videos into one, connect MP4 files, or join two videos without desktop software. This free combiner runs locally with FFmpeg WebAssembly — no server upload.

Merge videos online features

Free online video merger, combiner, and MP4 stitcher in the browser.

  • Merge videos online

    Upload 2–6 clips and merge them into one MP4 in order.

  • Combine multiple videos

    Combine two videos or more into a single continuous timeline.

  • Stitch / merge MP4 files

    Stitch MP4 files, connect MP4 files, and append videos online.

  • Reorder before merge

    Move clips up or down so the merge order matches your story.

  • Normalized output

    Clips are scaled to 1280×720 @ 30fps H.264 + AAC for reliable concat.

  • No server upload

    FFmpeg WebAssembly merges video on your device for better privacy.

How to merge videos online

How to combine videos, merge two videos, or stitch MP4 files in a few steps.

  1. Upload clips

    Add 2–6 videos (MP4, MOV, WebM, MKV, or AVI — each up to 200 MB).

  2. Reorder if needed

    Use Up / Down so clips play in the right sequence.

  3. Merge and download

    Click Merge videos, then download the combined MP4.

Great for

Common video merge, combine, and stitch scenarios.

  • Clip compilations

    Merge clips online into one highlight reel or slideshow video.

  • Phone footage handoff

    Combine 2 videos from a phone into one file for sharing.

  • MP4 deliverables

    Merge MP4 files when a client wants a single continuous export.

  • Quick appends

    Append videos online without opening a full NLE.

Frequently Asked Questions

Quick answers about this tool—open a question to read more.