01 / Stack scanner

Visualize your
Repo's Stack Instantly

Paste any public GitHub repo. Stack Fingerprint scans its files, detects frameworks, runtimes and tooling, and hands you an embeddable SVG card for your README.

Try
60+ signals23 themes10 layouts0 auth
02 / Why

Paste a repo,
get a badge.

Biometric scanning meets the developer terminal. One scan reads your repo's fingerprint and turns it into a card.

Zero auth

Paste a repo, get a badge. No sign-in, no tokens, no friction.

Zero config

Smart detection out of the box. Sensible defaults everywhere.

Full control

Themes, layouts, filters, pins and ignores — you decide what to show.

03 / How it works

One scan, one card.

01

Fetch

Reads the public file tree through the GitHub Contents API. No authentication needed.

$ --api github-contents
02

Fingerprint

Matches package files, lockfiles, configs and folders against 60+ signals.

$ --mode lockfile,config,dir
03

Render

Compiles a lightweight static SVG with real vector icons for every tech.

$ --renderer svg
04

Embed

Copy the snippet into your README, or let the GitHub Action commit the card for you. It stays in sync.

$ --output markdown,html
04 / Used by

In the wild.

Real READMEs wearing their fingerprint. Using it too? Get featured →

05 / Open source

Saved you time?
Leave a star.

Stack Fingerprint is free and open source. A star on GitHub helps other developers find it.

Star on GitHub