Brain OS — AI Agent by myths
Your AI brain that sees everything you browse, learns what matters, and gets smarter over time.
Extension Metadata
About this extension
Brain OS is an open-source AI memory system that runs entirely on your machine. This browser agent gives it eyes — automatically capturing and classifying every page you visit so your AI brain remembers what matters.
No configuration needed. Install the extension, start browsing. Your brain is auto-discovered at http://127.0.0.1:45678.
What it captures: Full page content (articles, docs, code), Open Graph / JSON-LD structured data, code blocks, engagement signals (scroll depth, time on page, clicked links). Pages are classified into types (article, code, docs, video, product, social, etc.) and importance-scored 1-10.
Privacy-first: Passwords, API keys, tokens, emails, and credit card numbers are stripped from captured content before saving. All data stays on your machine — never sent to external servers.
Smart features: 5-minute URL deduplication, SPA support via MutationObserver, offline queue with retry, zero-config auto-discovery, manual capture, and a live stats popup.
No configuration needed. Install the extension, start browsing. Your brain is auto-discovered at http://127.0.0.1:45678.
What it captures: Full page content (articles, docs, code), Open Graph / JSON-LD structured data, code blocks, engagement signals (scroll depth, time on page, clicked links). Pages are classified into types (article, code, docs, video, product, social, etc.) and importance-scored 1-10.
Privacy-first: Passwords, API keys, tokens, emails, and credit card numbers are stripped from captured content before saving. All data stays on your machine — never sent to external servers.
Smart features: 5-minute URL deduplication, SPA support via MutationObserver, offline queue with retry, zero-config auto-discovery, manual capture, and a live stats popup.
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Permissions and data
Required permissions:
- Access browser tabs
- Access browser activity during navigation
- Access your data for all websites
Optional permissions:
- Access your data for 127.0.0.1:45678
- Access your data for localhost:45678
Required data collection, according to the developer:
- Browsing activity
- Website content
Optional data collection, according to the developer:
- Technical and interaction data
More information
- Add-on Links
- Version
- 2.0.0
- Size
- 25.05 KB
- Last updated
- 5 days ago (Jul 17, 2026)
- Related Categories
- License
- MIT License
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection