Drag a box over anything private — pixelated or blacked out for good, on your own device.
Screenshot or photo · redacted on your device, nothing is uploaded
No size limit · files are processed on your device and never uploaded · how it works
Runs in your browser. Files are never uploaded — you can go offline after the page loads.
How to use the Blur / Redact Image
Drop a screenshot or photo.
Drag a box across anything private — it pixelates (or blacks out) instantly; add as many boxes as needed.
Download the redacted PNG or JPG.
Easy to use
Drop files, pick options, download. Whole folders at once, no signup, no daily limit.
Best quality
The same engines the professionals use — SVGO, resvg, MozJPEG, libwebp, libavif — compiled to run in your browser.
Private & secure
Files are processed on your device and never uploaded. Close the tab and nothing remains anywhere.
Redaction that actually removes
The famous redaction failures — black rectangles lifted off PDFs, cropped photos with the data still in the file —
happen when tools cover instead of destroy. Raster redaction done here replaces the pixels themselves before the
file is written: mosaic cells average the region away, blackout flattens it to nothing. What you share contains
only what you see.
One honest nuance: pixelation preserves rough colour blobs, which is stylistically nice but means a bright red
credit card stays recognisably a red card — choose Blackout when nothing at all may survive. And the obvious point,
stated plainly: an image needing redaction is exactly the image that should never be uploaded to a "free blur
tool"'s server. This one runs in your tab. Check the invisible data too with the
EXIF remover.
Frequently asked questions
Can redacted content be recovered?
No — and this matters. The region’s pixels are replaced (averaged into mosaic cells, or flat black) before the file is saved; the original data is not in the file. Contrast with PDF “black rectangles drawn over text”, a famous failure mode — raster redaction of a flat image is safe by nature. One honest caveat: very coarse information (rough colours) survives pixelation; use Blackout for absolute certainty.
What do people redact?
Names and emails in screenshots for bug reports, faces of bystanders, licence plates, account numbers in payment proofs, API keys in terminal captures — the everyday privacy hygiene of sharing screens.
Why does no-upload matter here most of all?
Because the image you are redacting contains, by definition, something sensitive. Sending it to a server to “blur it” defeats the purpose. Everything here happens in your tab.
Most online converters upload your file to a server. InfyTool ships the actual encoders to your browser as WebAssembly instead, so processing happens inside your tab — faster for batches, and nothing to delete afterwards.
No upload, ever. Turn off Wi-Fi after the page loads and every tool keeps working.
No limits. No file-size cap, no queue, no watermark, no account.
Runs on your CPU. Batches use several cores in parallel; nothing is throttled.