Video Compressor
VideoShrink video file size for upload without a cloud service.
Video Compressor shrinks a clip for upload without a cloud service, working the way desktop encoders do: pick a quality tier and watch the estimated size, or name an exact target in MB and let it find the bitrate. Scaling down to 1080p, 720p or 480p first keeps the result sharper than crushing the bitrate alone. Export as MP4 for compatibility or WebM for the web — and the video is re-encoded in your browser, never uploaded.
Why use Video Compressor
100% private
Your video files are processed locally and never uploaded.
Instant
No upload or download wait — it runs at the speed of your device.
Free to start
Use it free every day; go Pro for unlimited runs.
No install
Works in any modern browser. No sign-up to begin.
How to use Video Compressor
- 1Drop in the video
MP4, WebM or MOV, any size — there's no upload limit because nothing is uploaded.
- 2Pick a quality or a target size
Choose a plain-language quality tier, or name a size like 25 MB and let it work backwards. Dropping the resolution first is what really shrinks a file.
- 3Render and download
You see the estimated size before committing, then the compressed file saves straight to your device.
Frequently asked questions
How do I compress a video to 25 MB for Discord?
Switch to target-size mode and enter 25 MB. The tool works backwards from that budget to a bitrate and resolution that fit, showing the estimated size before you commit — so you're not re-exporting three times to squeeze under a limit.
Why does lowering the resolution shrink the file so much?
Because there are fewer pixels for the bitrate to cover, so each one gets more data. Dropping 4K footage to 1080p often looks better at a given file size than keeping 4K at a starved bitrate — which is why the resolution control matters more than the quality slider.
Is there an upload limit?
There's no upload at all, so no limit. Most online compressors cap free uploads at a few hundred megabytes and queue you behind other users; here your machine does the work and a long recording is fine.
Which format should I export?
MP4 where your browser can encode it — it plays everywhere. WebM is offered when MP4 encoding isn't available and is usually smaller at the same quality, which suits the web but not every editing program.