Blur Video
Blur an entire video with adjustable strength, for backgrounds or to hide details.
Add video
MP4, MOV, WebM, MKV, AVI — up to 2 GB per file.
Choose an output
Blur an entire video with adjustable strength, for backgrounds or to hide details.
Fine-tune
Optional — sensible defaults are already set.
About Blur Video
Blur Video softens the entire frame with an adjustable strength from 1 to 20 and saves the result as an MP4 with the original audio. Light settings give a dreamy, out-of-focus look, while high settings make a video unreadable, which is handy for backgrounds.
When it helps
- Making a soft, out-of-focus background loop to place text or a speaker over.
- Obscuring a screen recording that shows private information before sharing it as a demo of the layout.
- Creating a blurred version of a clip for a vertical video's background fill behind the main footage.
Tips
- Values around 2 to 5 give a gentle softening; 15 to 20 makes faces and text unrecognisable.
- The blur covers the whole frame. This tool cannot blur only a face, licence plate or region.
- Heavily blurred video compresses very well, so the output is often noticeably smaller than the source.
Good to know
Quick answers about blur video in your browser.
No. This tool blurs the entire frame evenly. Blurring a specific moving area needs an editor with masking or tracking.
At high strength, small text and faces become unreadable. For truly sensitive material, check the result carefully, or crop the area out with Crop Video instead.
Yes. There is no sign-up, no watermark and no limit on how many files you process.
No. Files are read and processed locally in your browser, so they never leave your device.
Runs in WebAssembly: large files are slow and must stay under 2GB.
Related tools
Part of the Video Effects & Tools collection.