How it works — 4 simple steps
- Add your files: drag and drop videos, photos or GIFs, or choose them on your device. You can add several files at once.
- Pick a mode: choose how much to compress and, if you like, the output format — for example, to convert MOV to MP4.
- Start: click “Start compression” and the file is processed right on your computer or phone.
- Download: get your files one by one or all together in a single ZIP archive.
More than just a compressor
Everything you need to quickly prepare video and photos for sharing.
Format conversion
Turn bulky AVI or MOV files into universal MP4 or modern WebM.
Remove audio
Make silent clips for social media in one click.
Batch processing
Compress several videos and photos with the same settings at once.
Speed control
Create slow-motion or time-lapse effects by changing video and audio speed.
Mirror video
Flip videos that were recorded the wrong way round.
100% private
Your files never leave your device. We don't upload them anywhere.
When do you need to compress a video?
- For messengers: easily compress video for WhatsApp, Telegram or Discord to fit their file size limits.
- For social media: prepare videos for fast upload to YouTube, Instagram or TikTok.
- To free up space: shrink your home video archive on your computer or phone.
- For websites and email: make videos load faster on your site or fit into an email attachment.
Frequently asked questions
How do I compress a video without losing quality?
Choose the “Balanced” or “High quality” mode. Compross uses modern codecs that make the file much smaller while keeping detail that most viewers won't notice is gone.
Which formats can I compress?
Video: MP4, MOV, AVI, MKV, WebM, WMV and FLV. Images: JPEG, PNG and animated GIF.
How do I convert MOV to MP4?
Add your MOV file, choose MP4 in “Output video format” and click “Start compression”.
Can I compress several files at once?
Yes. Add several videos or photos, apply the same settings and download them as one ZIP archive or one by one.
Do you add a watermark?
No. Compross never adds watermarks, logos or any other marks to your videos and photos.