Directory

Rust-based formatter and linter for JavaScript, TypeScript, JSX, JSON, CSS and GraphQL that replaces Prettier and ESLint with one binary

Pluggable static analysis tool for JavaScript and TypeScript that finds problems in code through configurable rules and can fix many automatically

Open-source functional programming language and interactive theorem prover with dependent types, the Mathlib mathematics library and VS Code tooling, stewarded by the Lean FRO

Microsoft's browser automation and end-to-end testing framework driving Chromium, Firefox and WebKit from one API in TypeScript, Python, Java and .NET

Opinionated code formatter for JavaScript, TypeScript, CSS, HTML, Markdown, YAML and more that reprints code from its syntax tree with few options

Static analysis engine that matches code patterns written in the target language's own syntax, with an LGPL community edition and a commercial AppSec platform

Vite-native unit test framework for JavaScript and TypeScript with a Jest-compatible API, watch mode, coverage and browser mode