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Video Merger

Merge and combine multiple video clips (MP4, WEBM, MOV, AVI) into a single continuous video online.

Online Video Merger & Joiner

100% Client-Side Privacy

Merge multiple MP4, WEBM, MOV, AVI, and MKV video clips into a single seamless video with reordering, custom resolution scaling, and zero server uploads.

Add video clips to merge, or browse files

Upload multiple MP4, WEBM, MOV, AVI, MKV clips to combine into one file

Merged 100% locally in your browser. No server upload.

100% Client-Side Privacy

All video merging, scaling, and sequence rendering execute 100% locally in your web browser. No files leave your device.

Seamless Clip Sequence

Reorder video clips with simple up/down controls and combine multiple videos with different aspect ratios into a single clean video.

Multi-Format Export

Export merged video files directly as MP4, WEBM, animated GIF mashups, or extract combined audio tracks as MP3.

Frequently Asked Questions

How do I merge multiple video clips into one file?

Upload your video clips, arrange them in your preferred sequence order using the up/down buttons, choose an export format, and click "Merge Video Clips".

Are my video files stored on any server?

No! ReadyForFile processes and joins video files 100% locally inside your browser with complete data privacy.

Can I merge videos with different resolutions?

Yes! Our video merger automatically letterboxes and scales all videos into a uniform target resolution (e.g. 1080p, 720p).

Is there a limit on how many video clips I can merge?

There are no artificial clip limits because rendering happens directly on your device.

What does Video Merger do?

ReadyForFile Video Merger is a free online utility that merge and combine multiple video clips (mp4, webm, mov, avi) into a single continuous video online. directly in your web browser with no registration or software installation required.

About Video Merger

Free online Video Merger & Joiner. Combine multiple video clips into a single video file. Reorder tracks, auto-match resolution (1080p, 720p, 1:1 Square, 9:16 Vertical Story), export as MP4, WEBM, animated GIF mashups, or extract combined audio tracks as MP3. 100% browser-based processing with zero server uploads.

Features & Capabilities

  • Sequential multi-clip video merger with track reordering
  • Auto-scaling & letterboxing for mixed video aspect ratios
  • Output resolution selector: Auto Match, 1080p, 720p, 1:1 Square, 9:16 Vertical
  • Multi-format export: MP4, WEBM, animated GIF, MP3 audio
  • Total combined duration calculation & current clip indicator
  • 100% local browser transcoding with zero server uploads

How to Use Video Merger

1

Upload Video Clips

Select or drag and drop multiple MP4, MOV, WEBM, or AVI video files into the merger box.

2

Arrange Clip Sequence

Use the up and down arrow buttons to reorder your video clips in your desired sequence.

3

Merge & Download

Click 'Merge Video Clips' to combine locally in your browser and download your single merged video.

Frequently Asked Questions

How do I combine multiple video clips into one file?

Upload your video clips, arrange their order using the up/down buttons, choose your export format, and click 'Merge Video Clips'.

Is my video file uploaded to any server?

No! All video rendering and frame joining run 100% locally in your web browser using Web APIs.

Can I merge videos with different dimensions or aspect ratios?

Yes! Our video merger automatically letterboxes and scales all clips to fit your selected target output resolution.

Convert video files online between MP4, WEBM, GIF, MP3, and WAV with custom resolution, frame rate, and trimming.

Available

Video Trimmer

Trim, cut, and slice video clips online with millisecond precision. Export as MP4, WEBM, GIF, or MP3.

Combine and merge multiple audio files (MP3, WAV, OGG, M4A, FLAC) into a single audio track with custom silence gaps.