Blur, pixelate, or black-bar sensitive areas on screenshots and photos for privacy.
Load a screenshot or photo and this tool lets you hide parts of it before you share the file: you mark the regions you want covered, choose one of three effects - a blur, a pixelated mosaic, or a solid black bar - and export the edited image. Everything happens in the browser window, and the image never leaves your device. The thing users most often get wrong is strength: a light blur or a small mosaic leaves short text partly legible, and some pixel patterns can be estimated back. The black bar is the only effect that guarantees nothing readable survives.
You load an image and draw a mask - a rectangle or a freehand stroke - over each region you want hidden. The mask defines the boundary precisely: every pixel inside it is replaced, and every pixel outside it is left exactly as it was. Regions can be resized and adjusted before export, and only the masked pixels are ever affected.
Blur softens the region by blending each pixel with its neighbors, so text smears into an unreadable smudge. Pixelate redraws the region as coarse square blocks, the classic mosaic. The black bar fills the region with solid color, removing the pixels entirely. Export writes a new image with the chosen effect baked into the pixels, and the source file is never overwritten.
No. The image is processed in your browser and never leaves your device; there is no upload step, and the page works offline once it has loaded. That is the main reason to prefer a local tool over an online editor. Remember that any messenger or cloud app you use to share the result will upload its own copy.
No exact restoration is possible - the original pixels are gone from the exported file. But a weak blur can leave text partly readable, and recovering information from heavily pixelated faces is an active research area. For anything that must stay secret, the black bar leaves nothing to recover.
The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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