Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
All Packages
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ESLint
The pluggable JavaScript and TypeScript linter that finds and fixes code problems through a fully customizable, plugin-based rule engine.
lint-staged
Run linters and formatters only against the files staged in git, so a slow full-project lint never blocks a commit.
Oxlint
Rust-based JavaScript/TypeScript linter that runs 50-100x faster than ESLint, with zero configuration required.
Stylelint
An extensible CSS linter that catches errors and enforces consistent styling conventions.
Ruff
An extremely fast Python linter and code formatter, written in Rust, built as a drop-in replacement for Flake8, Black, isort, and dozens of plugins.
mypy
Optional static type checker that catches Python bugs before you run your code
isort
Automatically sorts and organizes Python import statements
flake8
The CLI linter that wraps PyFlakes, pycodestyle, and McCabe complexity checks into a single Python style and error checker.
Pylint
A static code analyser for Python that catches bugs and enforces coding standards
fallow
Rust-native static analysis for TypeScript and JavaScript that finds dead code, duplication, cycles, and architecture drift with no compiler or AI in the loop.
go-ruleguard dsl
The Go API for authoring ruleguard rule files that match, filter, and report on Go source code.
Bandit
A static analysis tool that scans Python code for common security issues.
pyflakes
A fast, false-positive-averse Python linter that finds real errors without ever complaining about style.
ast-grep
Fast CLI for structural code search, linting, and rewriting by AST pattern.
sqlfluff
A dialect-flexible SQL linter and auto-fixer supporting 30+ SQL dialects, Jinja templating, and dbt projects.
pydocstyle
A static analysis tool for checking Python docstring style against PEP 257 and related conventions.
django-migration-linter
Detects backward-incompatible Django migrations before they break deploys, CI, or zero-downtime rollbacks.
vite-plugin-oxlint
Runs the Oxlint linter automatically during Vite dev and build, surfacing lint errors without leaving your workflow.
