Hacker News Companion by Hacker News Companion

See It In Action
Watch a brief YouTube demo

Key Features:

AI-Powered Summaries
- Summaries are tailored to understand HN thread hierarchy, conversation flow and rankings
- Resizable panel highlights key debates, contrasting viewpoints and notable side discussions
- Multiple AI providers: Anthropic, OpenAI, Google AI, OpenRouter, or local Ollama
- Cached summaries available for homepage stories
- Copy summary to clipboard
- Run locally with Ollama for complete privacy

Vim-Style Keyboard Navigation
- Navigate comment trees: parent/child (h/l), siblings (j/k)
- Jump between comments by the same author ([ and ])
- Collapse/expand threads (c), jump to first comment (gg), undo navigation (u)
- On the home page: sort stories (s), move between posts (j/k), open comments (c), open articles (o)
- Press '?' anytime to view all shortcuts

Follow the Conversation
- Jump to specific comments from summary
- Navigate to other comments by same author
- Hover over usernames to preview author profile (karma, account info)

Privacy-Focused & Open Source
- No tracking or analytics
- Runs only on Hacker News. No access to other tabs.
- Fully open source (MIT Licensed)
- GitHub: github.com/hncompanion/browser-extension

Note: Not affiliated with Y Combinator or Hacker News.