📦Compress Video
Shrink MP4 size for sharing anywhere. Free, private, no signup — files never leave your browser.
Huge videos, tiny files.
Up to 80% smaller MP4s with honest quality presets — compressed locally, no upload.
How to use Compress Video
Make huge videos shareable. Pick a quality level and get a dramatically smaller MP4 — perfect for WhatsApp, email and uploads. Re-encoded locally with real FFmpeg; your video never leaves your browser.
- 1Drop a video file (MP4, WebM, MOV).
- 2Pick High, Balanced or Small quality.
- 3Hit Compress and download the smaller MP4.
Use cases
What compress video does
- ✓Three honest presets: High (CRF 23), Balanced (CRF 28), Small (CRF 32 + half size).
- ✓Live before/after sizes with exact percentage saved.
- ✓Standard MP4 output that plays everywhere.
- ✓Engine downloads once (~30MB), then works offline-ish.
- ✓Private: no uploads, no accounts, no watermarks.
Specs
- Speed
- Minutes for long videos, on-device
- Input
- MP4, WebM, MOV
- Output
- Compressed MP4
- Privacy
- In-browser FFmpeg, zero uploads
- Cost
- Free, unlimited, no signup
Frequently asked questions
Is my video uploaded anywhere?
No. Compression runs 100% in your browser with FFmpeg. Your file never leaves your device.
How much smaller do files get?
Typically 50–80% smaller depending on the level — the result screen shows the exact saving.
Will it look bad?
High keeps near-original quality; Balanced is great for sharing; Small trades some detail for tiny size.
Why does it take a while?
Re-encoding is real work — it runs on your device, so bigger videos take a few minutes. The engine downloads once (~30MB).