NullKit

Privacy · Free browser tool

AI-Assisted Screenshot and ID Redactor

Use local OCR to suggest visible emails, phone numbers, IP addresses, URLs, and card-like numbers, then review every suggestion and permanently cover sensitive pixels in your browser.

Runs on this device No file upload Free to use

Private workspace

Let local OCR suggest common identifiers, add or remove covers yourself, and export a flattened copy whose selected pixels are permanently replaced.

Local processing

Ready.

Choose a file to begin

Let local OCR suggest common identifiers, add or remove covers yourself, and export a flattened copy whose selected pixels are permanently replaced.

What this tool does

A focused job, with a visible boundary.

Let local OCR suggest common identifiers, add or remove covers yourself, and export a flattened copy whose selected pixels are permanently replaced.

01

Local OCR suggestions for common identifiers

02

Touch, pen, and mouse review controls

03

Solid permanent pixel replacement

Know the limits

Local does not mean unlimited.

Browser processing protects the file from an upload workflow, but the browser, device, output format, and selected settings still matter.

  • OCR and pattern matching can miss sensitive content or flag harmless text; names, faces, addresses, signatures, and unusual identifiers still require manual review.
  • English printed text is supported in this first assisted version.
  • The original remains unchanged; surrounding context can still reveal information.

Four local steps

How to use image redactor.

  1. 01

    Choose a screenshot, ID photo, or other image.

  2. 02

    Run the optional local OCR scan and review every suggested cover.

  3. 03

    Add, undo, or clear marks until every sensitive area is covered.

  4. 04

    Export the flattened copy and inspect it before sharing.

Clear answers

Image redactor questions.

Is drawing a black box enough?

For this image tool, the selected pixels are replaced in the exported bitmap rather than covered by a removable document annotation. You should still inspect the final copy carefully.

Can I undo a redaction?

You can undo marks while editing. Once downloaded, the exported copy contains replacement pixels and does not include an editable redaction layer.

Does the tool automatically find every private detail?

No. Local OCR suggests only recognized common patterns. You remain responsible for adding, removing, and reviewing every redaction area.