Compress a video without uploading it
Choose a video, set the quality and download a smaller MP4. The file is compressed by ffmpeg running inside your browser, so it never goes to a server. That is faster for big files on slow connections and private for personal videos. There is no watermark, no signup and no length limit beyond what your device can handle.
Which quality setting should I use?
| Quality | Typical result | Good for |
|---|---|---|
| 70–80% | Small saving, looks the same | Keeping detail for YouTube or editing |
| 50% (default) | Noticeably smaller, looks fine on phones | Sharing, email, WhatsApp |
| 30–40% | Much smaller, softer picture | Hitting a tight upload limit |
Results depend on the source. A 4K phone video shrinks a lot. An already-compressed clip shrinks less.
How to make a video small enough to share
- Trim the video to only the part you need. Length matters most.
- Compress at 50% and check the size shown.
- Still too big? Compress again at a lower setting.
- If you only need the sound, extract the audio as an MP3 instead.
Limits
The output is always MP4 (H.264 video, AAC audio). Long or 4K videos can fail on a phone because of memory. Use a computer for those. The first run downloads the video converter once.
Related tasks
Change the format with the video converter, remove the sound with Mute video, or turn a few seconds into a GIF.
