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Boundary

Redacts sensitive data from prompts before they reach AI assistants like ChatGPT and Claude.

SecurityBrowser extensionSecurityFree tier
tryboundary.com ↗Launched on Product Hunt · 2026-09-08
At a glanceswept 2026-09-17
For
Individuals and teams using AI assistants like ChatGPT and Claude who handle sensitive data
Price
Price not read
Use
Emerging
Activity
Actively maintainednothing dated on the site
Company
since 2026first launch
Runs as
Browser extension
What people do with it
  • Automatically redact passwords and API keys from prompts
  • Prevent personally identifiable information leaks in AI chats
  • Protect financial data and credentials before sending to AI
Alternatives in Securityby use, among tools still maintained
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Questions this page answers
  • What is Boundary?

    Redacts sensitive data from prompts before they reach AI assistants like ChatGPT and Claude.

  • Who is Boundary for?

    Individuals and teams using AI assistants like ChatGPT and Claude who handle sensitive data

  • Do people use Boundary?

    Emerging.

  • Is Boundary still maintained?

    Actively maintained.

  • What are alternatives to Boundary?

    In Security, by use: Darktrace, Vanta, Drata, BrowserOS, Lakera, Abnormal Security.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one row at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.