Show HN: Free tool to blur images instantly without signup or watermarks(blurimageonline.com)
blurimageonline.com
Show HN: Free tool to blur images instantly without signup or watermarks
https://www.blurimageonline.com/
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https://www.blurimageonline.com/
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I built BlurImageOnline.com because I often found myself needing to quickly redact sensitive information (like API keys, emails, or faces) from screenshots before sharing them.
Opening Photoshop felt like overkill for such a simple task, and I was hesitant to use existing online tools because I didn't want to upload my private images to a random server.
So, I built a privacy-first solution.
Key Features:
100% Client-Side: All image processing happens directly in your browser using (HTML5 Canvas / WebAssembly). Your images are never uploaded to my servers. Zero Friction: No signup, no login, and no watermarks. Simple UI: Just drag, select the area, and download. How it works: The tool loads the image into a canvas element and applies a box blur algorithm only to the selected coordinates. Since it runs locally, it’s fast and works even with large files (limited only by your browser's memory).
Future Plans: I'm planning to add (e.g., auto-face detection / mosaic pixelation style / mobile optimization).
I’d love to get your feedback on the UX and if you encounter any bugs with specific image formats.
Check it out here: https://www.blurimageonline.com/
Thanks!