Cinema · room 9
Video Compressor
Reduce video file size with adjustable quality.
🔒 Processed in your browser · No upload · No sign-up
Drop a video file here or click to browse
MP4, MOV, WebM, MKV… Files over ~500 MB may exceed browser memory.
Compress videos without uploading them
Reduce video file size by re-encoding to H.264 MP4 with an adjustable quality factor (CRF) and optional downscaling. Great for email attachments, chat apps and websites. All work is done in your browser.
Which settings should I use?
CRF 23–28 at 720p is a good balance for most videos. Browser encoding is single-threaded and slower than desktop apps, so start with short clips or the "Fastest" speed setting.