“TypeScript”

Shows the TypeScript compiler's syntax tree and type info for code you paste.

Try ESLint and TypeScript-ESLint rules and inspect the AST in the browser.

Translates Flow type annotations into TypeScript.

Strips types from TypeScript to give plain JavaScript.

Generates TypeScript types from a GraphQL schema.

Turns TypeScript types into Zod schemas.

Generates TypeScript types from a JSON Schema.

Builds a JSON Schema from TypeScript type definitions.

Infers TypeScript types from a JavaScript object literal.

Compiles TypeScript to JavaScript in the browser.

Writes TypeScript or JavaScript online, shows emitted JS and type errors, and shares snippets by link.

Infers TypeScript interfaces from JSON, marking optional fields and unions by merging array items.

Checks whether an npm package's TypeScript types resolve correctly across module systems.

Describe systems with TypeScript-style type syntax and see the diagram; documents are saved in the browser.

Converts between many code and data formats, such as JSON to TypeScript, SVG to JSX and CSS to JS.

Transpile or minify JavaScript and TypeScript with the SWC compiler and adjustable options.

Generates typed models in many languages from JSON, JSON Schema or GraphQL samples.

Generates a modern tsconfig.json from a few toggles.

Turns SVG markup into a typed React component.

Infers Zod schemas from JSON, including optional and nullable fields.

Tries out Zod schemas interactively against sample data.

Open-source engine and editor for making and playing tile-based puzzle games.

Minimal typing test with selectable text and time limits.

Previews a modular type scale and exports it as CSS.