Choose your video
Choose any common video file your browser can read.
Private by design
Free Online Video Compressor
Shrink a video for sharing, storage or the web without handing the file to a remote service.
No uploadNo watermarkNo signup
Drop a video here to startChoose a video to compress
MP4, MOV, WebM, MKV, AVI + more · Up to 1GB desktop / 300MB mobile
On-device processing · Never uploaded or storedRecommended settings
A sensible place to start
Start with Balanced. It is designed to reduce size substantially while preserving useful detail.
The compressor above is preconfigured for this use case. Actual results still depend on the source codec, motion and detail.
Why it works
Spend fewer bits, deliberately
A smaller video transfers faster, uses less storage and is easier to attach. VideoShrink gives you quality presets, target-size controls and a clear estimate before encoding.
Three simple steps
How to free online video compressor
Set the compression
Use Balanced or set a target file size.
Download the result
Compress locally, preview the MP4 and download it.
Practical guidance
Get a cleaner result
- Lower resolution before choosing an extremely low bitrate.
- Mute audio when sound is unnecessary.
- Keep this tab open during compression.
Clear answers
Frequently asked questions
Is video compression private?
Yes. Standard compression runs inside your browser. The video file is not sent to a VideoShrink server.
Will the output size be exact?
Target-size mode aims slightly below your limit, but container overhead and unusual source files can make the final size vary.
Why can compression take a while?
Encoding is demanding work. Duration, resolution, device speed and browser memory all affect processing time.
Make your video easier to share
Private browser compression. No account required.
Compress Video