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Privacy Mask – prevent secrets leaking to AI agents

by fullstackcrew·Mar 13, 2026·2 points·1 comment
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AI Analysis

●MidShip It

Screenshot redaction for AI agents, but no URL to verify implementation.

Strengths
  • •Local-only processing means sensitive data never leaves the machine
  • •Timely problem as AI debugging workflows become more common
Weaknesses
  • •No GitHub link or demo provided—can't verify pattern matching quality
  • •Screenshot redaction tools already exist as browser extensions and desktop apps
Category
Security
Target Audience

Developers using AI debugging tools, security-conscious teams

Similar To

Obscura · CleanShot X redaction · BlurScreen

Post Description

Hi HN,

I built a small open-source tool called Privacy Mask.

It intercepts screenshots locally and automatically redacts sensitive patterns (API keys, phone numbers, IDs, etc.) before screenshots are sent to AI tools or agents like OpenClaw.

The goal is to prevent accidental data leaks when sharing screenshots during debugging or development.

Everything runs locally.

Would love feedback.

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