Choose your video
Load the video and note its dimensions.
Control what changes
Reduce Video File Size
Lower the parts of a video that consume the most data, while keeping the version useful for its destination.
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
Try 720p Balanced for social sharing, then compare the estimate with your size limit.
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
Bitrate has the biggest direct effect on file size. Resolution, frame rate and audio bitrate change how efficiently that bitrate can preserve detail.
Three simple steps
How to reduce video file size
Set the compression
Reduce bitrate, resolution or both.
Download the result
Preview the compressed file before saving.
Practical guidance
Get a cleaner result
- Avoid upscaling a low-resolution source.
- Busy motion needs more bitrate than a static scene.
- Removing audio can save space on silent clips.
Clear answers
Frequently asked questions
Is file-size 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