A public GitHub URL is cloned into an isolated, temporary environment. Nothing is stored beyond the analysis itself - the clone is deleted the moment analysis finishes.
Every source file is parsed and walked: functions, call graphs, imports, git history. No AI, no network calls out of the box - deterministic static analysis across 47 languages.
Dead code, complexity, duplication, test file ratio, and file size roll up into one 0-100 health score and letter grade - the number on every card below.
Explore analyzed repositories
Browse codebase health reports for 408+ open-source projects.
expressjs/express
Fast, unopinionated, minimalist web framework for node.
argotorg/solidity
Solidity, the Smart Contract Programming Language
twitter/finatra
Fast, testable, Scala services built on TwitterServer and Finagle
joernio/joern
Open-source code analysis platform for C/C++/Java/Binary/Javascript/Python/Kotlin based on code property graphs. Discord https://discord.gg/vv4MH284Hc
javalin/javalin
A simple and modern Java and Kotlin web framework
Kotlin/kotlinx.coroutines
Library support for Kotlin coroutines
swiftlang/swift
SwifterSwift/SwifterSwift
A handy collection of more than 500 native Swift extensions to boost your productivity.
v8/v8
google/googletest
GoogleTest - Google Testing and Mocking Framework
tiangolo/fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production
stephencelis/SQLite.swift
A type-safe, Swift-language layer over SQLite3.