Free tools · Compress & resize
Compress video
Compress a video to a smaller file size while keeping it looking good — perfect for Slack, Discord, email, or the web. Runs entirely in your browser: your file is never uploaded.
Runs entirely in your browser. Your file is never uploaded — no watermark, no account.
How to use Compress video
- 1
Choose your file. Drop a file into the tool, or click to select one. It stays on your device — nothing is uploaded.
- 2
Pick your settings. Adjust the options if you like, then press Run. The first run downloads a ~32 MB engine once; after that it's instant.
- 3
Download. Everything is processed right in your browser — download the finished file instantly, with no watermark.
Frequently asked questions
- Is Compress video free? Is there a watermark?
- Yes — Compress video is completely free, with no sign-up, no watermark, and no limit on how many files you process.
- Do my files get uploaded to a server?
- No. Compress video runs entirely in your browser with WebAssembly, so your MP4, MOV, WebM, MKV file never leaves your device and nothing is stored or seen by us.
- What can I put in, and what do I get out?
- Compress video accepts MP4, MOV, WebM, MKV and gives you back a MP4 file. You can also set quality before you run it.
- Can I control the output?
- Yes — you can adjust quality, so you decide the balance between file size and quality.