# Compress Videos

> Compress MP4, MOV, MKV, WebM and AVI files online for free. Runs in your browser, so nothing is uploaded. Pick a level, a target size or a percentage. No sign-up, no watermark.

URL: https://www.converterrr.com/compress-videos

## 5 videos formats

- [Compress MP4](https://www.converterrr.com/compress-mp4): lossy, in the browser. Re-encodes the video at a lower bitrate (and resolution on Strong); audio is re-encoded to AAC.
- [Compress MOV](https://www.converterrr.com/compress-mov): lossy, in the browser. Re-encodes the video at a lower bitrate (and resolution on Strong).
- [Compress MKV](https://www.converterrr.com/compress-mkv): lossy, in the browser. Re-encodes the video at a lower bitrate (and resolution on Strong).
- [Compress WebM](https://www.converterrr.com/compress-webm): lossy, in the browser. Re-encodes VP9/Opus at a lower bitrate (and resolution on Strong).
- [Compress AVI](https://www.converterrr.com/compress-avi): lossy, in the browser. Re-encodes the video at a lower bitrate.

## Common sizes

Each page presets the target and takes any video format; the compressor also takes any size, or a percentage to reduce by.

- [Compress video to 8 MB](https://www.converterrr.com/compress-video-to-8mb): Chat app uploads
- [Compress video to 10 MB](https://www.converterrr.com/compress-video-to-10mb): 10 MB upload limits
- [Compress video to 25 MB](https://www.converterrr.com/compress-video-to-25mb): Email attachments
- [Compress video to 50 MB](https://www.converterrr.com/compress-video-to-50mb): Portals & bigger uploads
- [Compress video to 100 MB](https://www.converterrr.com/compress-video-to-100mb): Long videos, smaller

## How to compress videos

1. **Add your videos.** Drop videos onto the compressor. You can mix MP4, MOV or MKV in one batch.
2. **Choose a level or a target.** Balanced suits most files. Pick Light or Strong, or set a target size or a percentage to reduce by.
3. **Compress.** Click Compress. Each file stays in its own format and comes back smaller.
4. **Download.** Download files one by one, or everything at once as a ZIP.

## Good to know

- Video is where compression saves the most space: phone and screen recordings use far higher bitrates than most viewing needs.
- Set a target size for email, chat and upload limits, or a percentage to reduce by. The longer the clip, the lower the quality a fixed size allows.
- All videos are compressed right in your browser with WebAssembly, so nothing is uploaded.

## Compress other files

[Compress images](https://www.converterrr.com/compress-images), [Compress audio files](https://www.converterrr.com/compress-audio), [Compress documents](https://www.converterrr.com/compress-documents), [Compress archives](https://www.converterrr.com/compress-archives)

## Compressing videos: frequently asked questions

### Which videos can I compress?

MP4, MOV, MKV, WebM and AVI. Each file comes back in its own format, just smaller.

### Does compressing videos reduce quality?

Lossy formats trade a little quality for a much smaller file, and Balanced is tuned to look or sound the same for most uses.

### Can I compress videos to a specific size?

Yes, for MP4, MOV, MKV, WebM and AVI: set a target size or a percentage to reduce by.

### Are my videos uploaded?

All videos are compressed right in your browser with WebAssembly, so nothing is uploaded.

### Can I compress several videos at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, mixing formats if you like, then download them individually or as one ZIP.