Combine videos online. Keep their recording order.

Combine two videos or a full camera roll into one video. OneCut sorts camera clips by recording time, keeps the sound, and exports one ready-to-share MP4.

  • Auto-sorted by recording time
  • Sound stays with every clip
  • Private by default

Online video merger

Combine videos into one without starting a full editing project.

OneCut helps you combine videos online from separate camera files. Add MP4, MOV, M4V, or WebM clips from your phone, camera, or computer. When recording dates are available, OneCut uses them to build the first sequence—even when the files came from more than one camera.

You stay in control before export. Reorder any clip, trim rough starts and stops, add short timed captions, and make simple colour adjustments. The original files on your device are not changed. The result is one shareable MP4 at 1080p, 1440p, or 4K, with the sound kept in place.

How to combine videos

From separate clips to one video in three steps.

  1. 01 — Add

    Choose your clips

    Select up to 30 video files with a combined size of up to 8 GB. Different supported formats can live in the same project.

  2. 02 — Review

    Check the sequence

    Keep the automatic recording-time order or move clips yourself. Set trim points, captions, and colour adjustments where needed.

  3. 03 — Export

    Download one MP4

    Pick 1080p, 1440p, or 4K and render one clean video with no watermark. A qualifying first 1080p export is free; paid exports start at €2.90.

Practical guides

Start with the files you already have.

How to combine videos

Follow the full workflow, then open the uploader with your clips ready.

How to merge MP4 files online

Arrange, trim, caption, and join several MP4 camera clips.

How to combine iPhone videos

Turn separate MOV and MP4 camera-roll clips into one video.

Find every walkthrough in the OneCut video merging guides.