RepoExplainer – AI explanations for any GitHub repo

Show HN: RepoExplainer – AI explanations for any GitHub repo

RepoExplainer – AI explanations for any GitHub repo is a business in show hn launch.

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I built RepoExplainer to quickly understand unfamiliar codebases without cloning them locally.What it does: Paste any public GitHub repo URL and get an AI-generated explanation with architecture diagrams, directory structure, and tech stack breakdown.How it works: FastAPI backend fetches the repo's directory tree and key files (README, package.json, etc.) in parallel from GitHub's API, then sends that context to Claude for structured analysis.Try it: https://repex.thienbao.dev.Tech highlights: - Parallel file fetching with asyncio.gather (70% faster than sequential) - Smart content filtering (100KB limit) to prevent token overflow - Custom tree parser converts GitHub's flat file list into hi

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Website: repex.thienbao.dev