Video Compressor
Pick a compression level, then shrink your video's resolution and bitrate and preview the result — free, private, and processed entirely in your browser.
About the Video Compressor
Our free online video compressor shrinks the file size of any MP4 or WEBM video by scaling down its resolution and limiting its playback bitrate. That makes it easier to upload to slow connections, attach to messaging apps with file-size limits, and optimize page load speeds when embedding video on the web.
Unlike most online tools, compression happens entirely inside your browser using the native MediaRecorder and canvas.captureStream() APIs — your video is never uploaded to a server. That means it's fast, works without an internet round-trip, and keeps your files completely private and secure.
How to Compress a Video
Step 1
Upload your MP4 or WEBM video
Drag and drop a video file, or choose one from your device.
Step 2
Choose a compression level
Pick Standard, High Compression, or Low Compression depending on how much size you need to save.
Step 3
Compress, preview, and download
Click "Compress Video", preview the quality in the built-in player, then download your smaller file.
Frequently Asked Questions
How does client-side compression work?
It scales the video down to a lower resolution and re-encodes it at a lower playback bitrate using your browser's built-in video recorder, reducing file size significantly without needing to upload anything to a server.
Are my files secure?
Yes. All encoding, canvas stream capturing, and video recording happen 100% locally in your browser — your video is never uploaded anywhere.
Will the compressed video have audio?
No. This tool captures frames from the video's canvas rendering, which only carries picture, not sound, so the compressed output is video-only.
Which compression level should I pick?
Standard Compression is a good default for most videos. Choose High Compression when file size matters most (like email attachments or slow uploads), or Low Compression when you want to keep the original resolution and only trim the bitrate.
Does it cost money?
No. The video compressor is 100% free to use, with no registration or account required.