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Local Privacy Firewall for AI
9 starsGo
Velar – Local privacy firewall for AI
by ubcent·Feb 25, 2026·2 points·0 comments
AI Analysis
●●SolidSolve My ProblemDark Horse
Regex-based PII masking for ChatGPT leaks, but detection is intentionally basic.
Strengths
- •Streaming-safe MITM proxy with deterministic placeholder restoration keeps apps working seamlessly
- •100% local processing means zero data leaves machine for analysis or logging
- •macOS notifications and system proxy integration make adoption friction-low
Weaknesses
- •Regex-only detection is inherently limited—misses context-aware leaks and has high false-positive risk
- •No evidence of effectiveness against real-world data exfiltration patterns or testing against competitors
Category
Target Audience
Developers and teams using AI tools with access to sensitive data
Similar To
Nightfall AI · Pangolin (identity firewall) · Twingate
Post Description
I realized I was leaking sensitive data to ChatGPT every day.
Emails, API keys, internal data.
So I built a local firewall that detects and masks sensitive data before it leaves your machine.
It runs as a local proxy, supports streaming, and restores data in responses.
Everything is local.
Would love feedback.
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