Hide Sensitive Information in Images
Hide private details in images before sharing them with free local browser processing.
Same local editor as the homepage. This page is a deep link for one job, not a separate upload service.
Blur
Softer cover. Raise the strength until text is unreadable.
Pixelate
Mosaic blocks for faces and photos. Larger blocks hide more.
Black Box
Solid cover for names, IDs, and anything that must not be readable.
How to use
How do you redact this image locally?
Load the image in this browser, draw over each sensitive region, and export a PNG. The canvas edit does not upload the file. Paste a screenshot with Ctrl+V or Command-V, or drop a JPG, PNG, or WebP. Undo fixes a box without changing the original on your device.
- 1
Upload the image containing sensitive information.
- 2
Choose Black Box for maximum privacy, Blur for a natural look, or Pixelate for a mosaic effect.
- 3
Draw a box over each piece of sensitive information: names, emails, phone numbers, ID numbers, or addresses.
- 4
Use Undo to fix mistakes. Add as many covered areas as needed.
- 5
Click "Export redacted PNG" to save the sanitized image.
You can also paste a screenshot with Ctrl+V or ⌘V. Undo and Redo fix a box without changing the original file.
Why use this tool
Why does this stay in the browser?
This page is for images that already contain private material. Blur, pixelate, and black box run in your browser, so the file is not sent away to be cleaned. Use a black box for secrets that must not stay readable. Use blur or pixelate only after you have checked that the cover is enough.
When you share an image, whether it is a screenshot, a photo of a document, or a scanned form, it may contain personal information that was not meant to be shared.
Hiding that information before sharing is a simple, responsible step. It protects the privacy of the people whose data appears in the image and reduces the risk of accidental exposure.
This tool covers any visible sensitive region with your choice of effect and runs entirely in your browser so your image never leaves your device.
Questions
What should you know before you export?
The image is processed locally, and export writes a new PNG. Blur is not the same cover as a black box. Paste works with Ctrl+V or Command-V. If your question is about a specific leak, such as a password, a face, or a sidebar, use the guides linked below before you send the file.
What kind of sensitive information can I hide?
Any visible data in an image: full names, email addresses, phone numbers, ID numbers, passport details, addresses, signatures, or other private information.
Which redaction style is most secure?
Black Box is the most secure. It replaces the selected area with solid black pixels, making recovery of the hidden information impossible.
Can I hide information in images I am posting on social media?
Yes. Upload your image, hide the sensitive parts, download the result, then post the downloaded version. The original never leaves your device.
Is this GDPR or HIPAA compliant?
This tool processes images entirely in your browser and never transmits data. Whether it meets specific compliance requirements depends on your organization.
Does this work on iPhone or Android?
Yes. Open this page in your mobile browser, upload a photo from your gallery, and use touch gestures to draw over the areas you want to hide.
Can I hide a face as well as text?
Yes. The tool works on any region of the image: faces, handwriting, printed text, signatures, logos, and more.
How many areas can I hide in one image?
There is no limit. Draw as many selection boxes as you need and each one adds a new hidden region.
What if I make a mistake?
Click Undo to remove the last selection and redraw it. The original image is never modified.
Can I hide information in a scanned document?
Yes. Scan the document to an image file, upload it here, draw over the sensitive fields, and download the redacted version.
Related workflows
Which related tool should you open next?
Every tool on this site is the same local editor with a different starting note. Open a related page when the job is narrower, such as faces, screenshots, or solid black text. You do not upload the image to a second service to switch jobs.
Guides
Which guide matches this job?
Read the guide that matches the mistake you are about to make. Text secrets usually need a black box, not a light blur. Faces, plates, and sidebars need their own pass. Local editing matters most when the file should not be uploaded in order to hide it.
Tool network
Where are the other free tools?
The list below is that same editor under different job names. Pick the name that matches what you need to hide. Processing stays in the browser on every page here, and none of these links is a separate upload form.