Video Compressor
Make videos smaller for email, messaging apps and uploads. Pick a compression level and an optional maximum resolution.
- ✓ Free
- ✓ No sign-up
- ✓ No upload
Drag a file here or choose one
Accepted: MP4, MOV · Max 500 MB per file · up to 5 files at once
Every conversion runs inside your browser.Files are never uploaded to or stored on a server.
How to use Video Compressor
- 1Choose or drop your MP4, MOV files.
- 2Adjust the settings if you like — the defaults work for most files.
- 3Click Convert.
- 4Download the result. Your files stay on your device the whole time.
Video Compressor: tool facts
| Accepted files | MP4, MOV |
|---|---|
| Output | MP4 |
| Max file size | 500 MB |
| Files at once | 5 |
| Where files are processed | In your browser — files are never uploaded |
| Conversion engine | FFmpeg (ffmpeg.wasm, WebAssembly) |
| Price | Free, no sign-up |
MP4 vs MOV at a glance
| MP4 | MOV | |
|---|---|---|
| Full name | MPEG-4 video | QuickTime movie |
| Developed by | MPEG (ISO/IEC 14496-14) | Apple |
| First released | 2001 | 1991 |
| File extensions | .mp4, .m4v | .mov, .qt |
| MIME type | video/mp4 | video/quicktime |
| Compression | Lossy | Lossy |
Facts checked on 2026-10-10.
Frequently asked questions
What is MP4?
MP4 is the most compatible video format. It plays on phones, computers, TVs and every major website, usually with H.264 video and AAC audio.
What's the difference between MP4 and MP4?
MP4 and MP4 can hold the same video codecs; the difference is mostly compatibility. MP4 plays on almost everything.
Will I lose quality?
Compression removes detail you are unlikely to notice. If you need more quality, choose a lighter level. If a file is already well optimized, we keep the original.
Is it safe to convert my files here?
Yes. The conversion runs inside your browser, so your files are never uploaded to a server. Close the tab and nothing remains.
Are there any limits?
It's free with no sign-up. Each file can be up to 500 MB, and you can convert up to 5 files at once.