Flint

Approachable and Fun

Fall in love with your linter. Flint’s intentional defaults and rich reporting surface only the issues you’ll want it to find.

Cache-Friendly and Fast

Flint’s intelligent caching and coordination eliminate duplicate CI workflows for tasks such as formatting and type-checking.

Powerful Typed Linting

Flint builds the most useful class of lint rules that use the full power of TypeScript’s type checker to find bugs in your code.

Streamlined Configuration

Flint configs embrace readability and power. They give you control over your linter without making you learn its internals.

Try out Flint on any web project:

npm

npx flint

bun

bunx flint

deno

deno x flint

pnpm

pnpx flint

yarn

yarn dlx flint

Frustrated with slow linting that doesn't catch what you actually care about?

Or maybe your linter is fast, but doesn't include powerful lint rules?

Let Flint help you out.

Get started linting with Flint

❤️‍🔥
Thank you to our sponsors

Flint can't happen without the generous support of these wonderful folks.

Josh Goldberg 💖

Amp

Mintlify

Financial sponsors allow us to keep development of Flint going, including maintaining and improving the project, providing support to users, and pushing web ecosystem tooling forward with advances in great typed static analysis and holistically designed linting.

Become a Sponsor