Redact & Censor Image
Black out, pixelate or blur regions. Redacted pixels are truly replaced, not covered. Free, private and instant: it runs entirely in your browser.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
How to use Redact Image
- 1
Open or drop an image.
- 2
Use the controls to get the result you want.
- 3
Download the result. Nothing is uploaded at any point.
Why use Aback Images for redact image
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
Instant results
Everything runs locally in a background thread, so there is no upload queue and no waiting on a server.
Precise control
Fine-grained controls with a live preview of the final result.
Every format
Works with JPG, PNG, WebP, AVIF, HEIC, GIF, TIFF, SVG, RAW and more, identified by content rather than file name.
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Resize to exact pixels, a percentage or a longest side, with Lanczos3 and Magic Kernel resampling. Batch ready.
Convert between 34 image formats in bulk: HEIC, WebP, AVIF, JPEG XL, PNG, JPG, GIF, TIFF, SVG, ICO, PSD, RAW and more.
Guides
How to redact a screenshot properly
Why highlighter strokes, markup layers and light blur can leak information, and how true redaction replaces the pixels so hidden text is gone for good.
2 min read
How to blur faces in a photo
Hide faces with on-device face detection, choose blur, pixelation or a solid mask, and check the result before you share it.
2 min read
How to check a photo before you share it
A checklist for hidden metadata, embedded thumbnails, secrets visible in screenshots and details in the picture itself, with tools that run on your device.
2 min read
Frequently asked questions
Can blurred or pixelated redactions be reversed?
Strong pixelation and blur are hard but not always impossible to reverse, especially for text. For passwords, numbers and personal data, use solid boxes, which replace the pixels completely.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.