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Dev.to
6/24/2026
Local AI Agent Browser Extension: Hermes in 120ms

Local AI Agent Browser Extension: Hermes in 120ms

Short summary

Build Hermes, a local AI agent browser extension that processes sensitive web content privately on your machine in 120ms without sending data to cloud APIs. Architecture uses a browser extension, local HTTP server, and Hermes LLM (via Ollama or Llama.cpp) for privacy, speed, and full control. Tutorial provides complete, working code examples for Chrome, Edge, and Brave.

  • •Local Hermes browser extension runs in 120ms without cloud APIs
  • •Three-part architecture: extension → local server → local LLM
  • •Complete code examples for Chrome/Edge/Brave with privacy-first design

Generated with AI, which can make mistakes.

#ai-tools#ai-agents#open-source
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