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Show HN: Ctxt.sh – Ask questions about any codebase, get answers with citations

https://ctxt.sh
2•Hudsonlatimer•1h ago
I'm 19, a solo developer and freelancer. I built ctxt.sh because I was tired of spending weeks understanding new codebases when joining projects or inheriting legacy code.

ctxt.sh indexes your entire repo – every file, every commit, every PR discussion. Then you can ask it questions in plain English:

> "How does authentication work?" > "Where is the Stripe webhook?" > "Why was this API changed last month?"

It returns answers with citations – links to specific files and lines.

Try it: https://ctxt.sh

Tech stack: Next.js, Supabase, Pinecone, OpenAI, hosted on Netlify.

Would love your feedback!

Comments

Hudsonlatimer•1h ago
Hi HN! Maker here.

I built this because every time I join a new project, I spend weeks just trying to understand what's going on. I wanted to compress that to minutes.

Quick demo: 1. Connect a GitHub repo 2. Ask something like "How does auth work?" 3. Get an answer with links to the exact files

Happy to answer any questions about the tech stack or solo dev journey!

Things I'm working on next: - Private repo support - Faster indexing - Team features

What would make this indispensable for your team?

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