Hey Product Hunt 👋 Our team built Boundary because we kept seeing people - ourselves included - paste sensitive stuff into ChatGPT and Claude without thinking twice: customer data, API keys, contracts, you name it. Boundary sits quietly in your browser and redacts that sensitive data automatically before it ever reaches the AI model. No copy-pasting into a scrubber first, no changing how you work - install it once and it just runs. A few things we're proud of: Zero configuration - works the moment you install it Choice of fast regex-based detection or ML-powered detection for trickier cases Custom redaction rules for anything specific to your business We never store or log your data - everything happens on-device Free tier is genuinely usable (not just a trial), and Pro unlocks unlimited prompts + custom rules for power users. Would love your feedback - especially if you try it on your own AI workflow and something slips through that shouldn't. That's exactly the kind of thing that makes this better. 🙏

Boundary

Redact PII & API keys before they reach ChatGPT/Claude

Redact PII & API keys before they reach ChatGPT/Claude