microsoft/TypeScript

Health v2 · maintenance only

Adoption not part of the score

110715 stars · 13762 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

TypeScript is a strongly typed superset of JavaScript that adds optional static types and compiles down to clean, standards-based JavaScript. It ships as an npm-installable compiler (tsc) and language service that powers editor tooling, type checking, and large-scale JavaScript application development.

Use cases

• add static types to a javascript codebase
• catch type errors before running my code
• compile typescript to javascript
• get better autocomplete and editor tooling for js
• migrate a large javascript project gradually to typed code
• write typed node.js backend code
• check plain javascript files with jsdoc types

When to choose

• you are building any non-trivial JavaScript or Node.js application and want static type safety
• you want incremental adoption of types in an existing JavaScript codebase
• you need rich editor tooling, refactoring, and early error detection at scale

When to avoid

• you need a tiny one-off script where type annotations add overhead
• your build pipeline cannot tolerate a compile/transpile step
• you rely on libraries without type definitions and do not want to write .d.ts files

Facets

library · maturity stable

compiler type-system developer-tools linter programming-languages compilers web-development developer-tools frontend backend cross-platform browser cli bun typescript javascript static-type-checking transpiler tsc superset-of-javascript nodejs deno

Member repositories

For agents

markdown · JSON · MCP: product_card(name="microsoft/TypeScript")