What this tool does
Visual redaction is safest when the output is a newly rendered image rather than a document with editable shapes layered over text. This tool draws directly onto a browser canvas and exports the rendered result.
The tool does not use OCR. You are responsible for finding every sensitive area, including browser tabs, notifications, profile photos, file names, URLs, and information near the edges.
Recommended workflow
- Crop before redactingRemove irrelevant parts of the screen so there are fewer areas to inspect.
- Cover high-risk valuesUse solid boxes for credentials, account numbers, financial values, and text that must be unreadable.
- Export a new imageDownload the rendered copy instead of sharing the original file.
- Review at full sizeZoom in and confirm no text is visible around the edges of each box.
What it checks
The current tool version is designed to handle the following areas:
- manual selections made by you
Example
Before
A full browser screenshot showing the customer email, account ID, internal URL, open tabs, and balance.Safer output
A new exported image with solid covers over every private area and only the relevant interface visible.Safety checks before sharing
- Inspect browser tabs and address bars
- Check notifications and profile menus
- Cover QR codes and barcodes when private
- Remove metadata separately when location privacy matters
Representative test coverage
This page is checked with representative examples, not every possible format or file produced by every application.
- PNG screenshots
- JPEG photos
- WebP images
- solid redaction boxes
- blurred selections
Known limitations
Automated processing can miss unusual formats, indirect identifiers, hidden data, unsupported structures, and information that requires human judgment. This tool may miss:
- areas you do not select
- metadata in the original image
- text outside the visible crop
- details still readable through weak blur
Do not describe the result as fully anonymous, legally compliant, secure, or impossible to re-identify. Review the exact final artifact before sharing it.
Frequently asked questions
Does Screenshot Redactor upload my input?
The normal tool workflow runs in your browser. The page code is downloaded from the website, but the content you paste or select is processed locally and is not sent to a Privacy Toolbox processing API.
Can this guarantee complete anonymization?
No. Automated checks can miss context clues, unusual identifiers, text inside unsupported files, and details that only a person would recognize. Always review the result before sharing.
Should I use this for regulated or highly sensitive data?
Only when your organization permits it. For medical, legal, financial, employment, or customer data, follow your approved security and compliance process rather than relying on a free pattern-based tool alone.