Combine Videos Online

Join two or more video clips into one continuous MP4 without a desktop editing suite. Drag to reorder the clips, preview each one before committing, and export a seamlessly merged file that plays straight through from the first clip to the last.

Combining runs entirely in your browser. Multi-day shoots spread across multiple phone files, screen recordings broken into segments, and social clips from different cameras all merge locally — no cloud upload, no account, no storage limit imposed by a server.

Drop videos here to add them

or click to browse — MP4, MOV, AVI, WebM supported

Add Videos

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How to combine video clips online

1

Add your video files

Upload all the clips you want to merge. They can be different lengths and from different devices, but matching resolution and frame rate gives the cleanest result.

2

Drag to arrange the order

Reorder clips by dragging. Preview each one in the player to confirm you have the right footage before committing the sequence.

3

Check format compatibility

Clips in different codecs or resolutions will be automatically re-encoded to a common output. The tool handles this for you, but expect longer processing on mixed-format sets.

4

Combine and export

FFmpeg concatenates the clips. The resulting file is a single MP4 with continuous timecode from start to finish.

5

Download and verify

Check the combined video in a player to confirm all segments joined correctly and audio transitions are smooth.

Common use cases

  • Multi-camera or multi-angle shoots

    Event photographers who shoot on two phones can merge angle-by-angle clips into a single highlight reel without a full NLE.

  • Stitching long-form recordings

    Phone cameras auto-split recordings over ~4 GB into multiple files. Combine them back into one uninterrupted video for editing or upload.

  • Building tutorial sequences

    Screen recorders capture separate steps in different sessions. Merge them into one tutorial video with a logical chapter flow.

  • Combining trimmed highlights

    After trimming the best moments from each raw file, merge the best segments into a single polished showreel.

  • Before/after comparison reels

    Brand campaigns and fitness coaches combine a before clip and an after clip side-by-side in sequence for narrative impact.

Best practices

  • Trim each clip to its essential range before combining — shorter inputs mean faster processing and smaller output.
  • Match resolution across clips if possible; 1080p + 4K forces a quality-compromising re-encode to a common size.
  • Match frame rates — mixing 24 fps and 60 fps creates judder at cut points.
  • Preview each clip in the panel before combining to catch wrong files or duplicate segments.
  • Keep combined exports under 2 hours for browser stability; longer projects are better handled in a desktop editor.
  • Compress after combining if the merged file is too large for your sharing platform.

Formats & compatibility

Input: MP4, MOV, WebM. All clips are re-encoded to H.264 MP4 for consistent output. Clips with different codecs, resolutions, or frame rates will be normalised during the combine pass. Output is a single MP4 file with continuous audio and video streams.

Related tools

  • Trim Video — cut each clip to its useful range before merging
  • Compress Video — reduce the combined file for sharing or upload
  • Add Watermark — brand the final combined video before distribution

Add your clips above, arrange them in order, and download one merged MP4 — no account, no upload, no cost.

Frequently asked questions

The tool handles multiple clips in one pass. Practical limits depend on total file size and browser memory, not a hard cap on clip count.
No — the combiner re-encodes to a common H.264 MP4 output. Mixing MP4 and MOV works, though mixed resolutions or frame rates may reduce quality.
Clips are joined with a hard cut (no fade or dissolve). For transitions, use a desktop editor after combining.
Yes, but the output resolution will be normalised — typically to the first clip's size. Upscaling lower-resolution clips softens those segments.
No server limit. The browser needs enough RAM to hold all clips in memory at once — large multi-GB sets may push browser limits on low-RAM devices.
Yes. Drag and drop the clips into the order you want before starting the combine.
No. Everything happens locally in the browser using FFmpeg WebAssembly.
This usually happens when one clip has no audio track. Check each source clip independently — clips without audio produce a silent segment in the combined file.