huanglizhuo/OctoCounts

> GitHub shows language bars. OctoCounts shows the actual line counts.
GitHub's sidebar shows language percentages, but misses actual file and line counts. OctoCounts adds this missing SLOC (Source Lines of Code) view to public repos without cloning.
Install the extension for instant stats directly on GitHub, or use the web app for public GitHub repositories. It downloads the repo archive, runs tokei, and caches the results—delivering a breakdown faster than git clone.
Use OctoCounts
| Surface | Use it for |
|---|---|
| Web app | Analyze any public GitHub repository and share a permanent report. |
| Browser extension | Show SLOC directly inside GitHub's repository sidebar in Chrome, Edge, or Firefox. |
| Public stats | See aggregate report totals, largest repos, language coverage, and source breakdown. |
| GitHub Action | Comment SLOC changes on pull requests. |
| CLI | Run npx octocounts https://github.com/owner/repo --json. |
| MCP server | Give agents and developer assistants access to SLOC reports. |
| README badges | Add a live SLOC badge that links to a permanent report page. |
| Launch kit | Copy product descriptions, launch posts, links, screenshots, and badges. |
| Research | Original research: a pilot study on how test/doc/generated file filtering affects SLOC counts. |
Preview
Why?
Sometimes you just want to know whether a repo is 2k lines, 200k lines, or a weekend-devouring monolith. GitHub already has the repo, the language stats, and the sidebar. OctoCounts fills in the missing numbers.
What it does
- Adds a browser extension card to GitHub repo pages with files, total lines, code, comments, blanks, and language count
- Provides a web app where you can paste any public GitHub repo URL
- Resolves any branch, tag, or commit SHA — pins results to an exact commit so the cache is actually meaningful
- Downloads the GitHub archive tarball instead of cloning (much faster, no git history overhead)
- Counts files, lines, code, comments, and blanks per language via tokei
- Caches reports by owner + repo + commit + tokei version — repeat runs are instant
- Queues analysis jobs so concurrent requests don't bring the server to its knees
- Exports reports as plain text, JSON, or a shareable PNG card
Stack
| Layer | Tech |
|---|---|
| Backend | Rust · Axum · Tokio · SQLx · Postgres · tokei |
| Frontend | React · TypeScript · Vite · TanStack Query |
| Infra | Cloudflare Pages (Pages Functions SSR) · GHCR image + sloc-infra dual VPS (VPS-A/VPS-B) + Cloudflare Tunnel · Postgres on VPS-B (Neon frozen snapshot as fallback) · Docker Compose (local dev only) |
Badges
Drop a live SLOC badge into any README:
Add ?lang= to any of the above to get a per-language badge instead:
Language names are case-insensitive (rust, Rust, and RUST all work). If a language is not found in the report the badge shows —. While a fresh analysis is running the badge shows ··· — most badge CDNs will retry automatically.