# Convert MOV / MKV / AVI to MP4 in Your Browser

> Convert MOV, MKV, AVI, or WebM video to MP4. The formats mobile editors treat as edge cases — handled without installing CapCut, VLC, or HandBrake.

Live tool: https://lofttools.com/tools/media-tools/video-format-converter

Category: Video & Audio

## How it works

1. **Select video** — Drag and drop your video file or click to browse
2. **Select output format** — Choose the target format (MP4, WebM, MOV, AVI, MKV)
3. **Download** — Get your converted video file

## FAQ

### Why use this instead of CapCut or VLC?

For one-off desktop conversion (especially MOV, MKV, AVI which mobile editors treat as edge cases), this is faster — no install, no signup, no admin permissions on a work laptop. CapCut is mobile-first and prefers MP4 in/out. VLC works but its UI is not optimized for "convert this one file."

### Which format conversions are supported?

MP4, WebM, MOV, AVI, MKV — any to any. Plus quality and resolution presets, and platform presets (YouTube, Instagram, Discord, email, etc.) that pick codec + resolution + size cap automatically.

### Does conversion affect video quality?

Quality is adjustable per platform preset or via manual mode (CRF + resolution + frame rate). Lower CRF = higher quality + larger file.

### What about audio codec?

MP4 / MOV / MKV outputs use AAC. WebM uses Vorbis. Audio bitrate is automatic based on the video quality preset.

## Privacy

This tool runs entirely in the browser. Files are not uploaded to a server. They never leave the user's device.

## More

- All tools: https://lofttools.com/tools
- Category: https://lofttools.com/tools/media-tools
- LLM index: https://lofttools.com/llms.txt