Video merger with transitions and per-clip editing

Free browser-based video merger with per-clip editing and 40+ transition effects. Trim, adjust speed and volume for each clip individually, then combine MP4, WebM, MKV, MOV files with fades, wipes, slides. No watermark, no account required.

How to Merge Videos Online

1
Upload your videos

Drag and drop two or more video files. Supports MP4, WebM, AVI, MKV, MOV up to 1 GB each.

2
Edit each clip

Expand any clip to trim start/end, adjust speed (0.25\u20134x), volume (0\u2013200%), rotation, and audio fades. Drag clips to reorder.

3
Add transitions and music

Choose transitions between clips \u2014 fade, wipe, dissolve, slide, and 30+ more effects. Optionally add background music.

4
Preview and merge

Preview the sequence, pick output format and quality, then click Merge. Your combined video is processed in-browser and downloaded directly.

Combine, trim and enhance your video clips into one seamless file

Drop video file here or click to browse
MP4, WEBM, MOV, MKV, AVI, WMV, FLV, 3GP
Upload a file to start
Your clips: 0
Total duration: 0:00
Background music Loop
Add at least 2 videos to merge
Lossless merge available \u2014 same format detected, ultra-fast processing without re-encoding
Preview clips in sequence before merging
0:00 / 0:00
0%
Video merged successfully!
Processing cancelled. You can start again when ready.
Choose transition

Features

Per-clip trim, speed (0.25\u20134x), volume and rotation editing
Expand any clip to set its in/out points, change speed from 0.25x to 4x, adjust volume up to 200%, rotate it, and add audio fades.
40+ transition effects: fade, dissolve, wipe, slide, zoom and more
Drop a transition between any two clips from categories like fade, wipe, slide, circle, shape, and slice, then apply one to every cut at once.
Lossless merge mode \u2014 instant combining without re-encoding
When all clips share one format and resolution with no edits, the tool concatenates them without re-encoding for instant, quality-preserving output.
Runs via FFmpeg WebAssembly in your browser
Combine up to 10 files of MP4, WebM, AVI, MKV, or MOV into a single clip at up to 4K, processed in the tab without an upload step.

What You Can Do

  • Combine clips from multiple cameras into one video
  • Trim and speed-adjust each clip before merging
  • Add professional transitions between scenes
  • Mix in background music at custom volume
  • Merge videos of different resolutions and formats
  • Use lossless mode for instant merging without quality loss

Frequently Asked Questions

Can I merge videos of different resolutions?

Yes! The tool automatically scales all videos to a common resolution. Choose Auto, 480p, 720p, 1080p, 1440p, or 4K.

Can I trim or speed up individual clips?

Yes. Expand any clip to trim its start/end, change speed from 0.25x to 4x, adjust volume, add audio fades, and rotate.

What is lossless merge mode?

When all clips have the same resolution and format with no edits applied, the tool merges them instantly without re-encoding \u2014 preserving original quality.

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How do you rate this tool?

5 (2 ratings)
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Comments

RAJ VERMA 1 week ago

good

Who is this tool for?
🎬 Video Creators ✨ Content Creators
Published Updated Authors: