Are TypeScript projects abandoned the same way as JavaScript projects?

Yes — TypeScript libraries are usually published to the npm registry with type definitions baked in or shipped as companion .d.ts files. The adoption signals are the same: GitHub adopt-me topic, looking-for-maintainer badge, and the npm deprecated field. The difference is that a typed API surface makes evaluation faster: you can read the public type definitions to understand the contract before you even read the source.

What about DefinitelyTyped / @types/* packages?

DefinitelyTyped (@types/*) is the community-maintained type definitions repository for libraries that don't ship their own types. When a JS library is abandoned, the @types/* package is often the more critical artifact — it's what your TS code depends on. If the original library is abandoned but @types/* is actively maintained (or vice versa), the project is in a tricky state. Look at both signals.

How do I evaluate a TypeScript library for adoption?

Three layers: (1) the public type surface — if the types are accurate and complete, the maintainer understood the library; (2) the test coverage of the types — well-typed libraries have test files that exercise the types, not just runtime code; (3) the public API stability — look at how many breaking changes there have been. A library with a stable public API surface is much easier to maintain than one with frequent breaking changes.

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Abandoned TypeScript projects looking for a new maintainer

TypeScript libraries are usually published to the npm registry. The adoption signals are similar to JavaScript, but the typed API surface makes evaluation different — and faster.

Published July 13, 2026 · ~3 min read

The short version

TypeScript libraries use the same npm registry as JavaScript — the signals are the same (adopt-me topic, deprecated field, looking-for-maintainer badge).
Typed API surfaces make evaluation faster: the public types tell you the contract before you read the source.
Watch the DefinitelyTyped repo for @types/* packages — the types may be more actively maintained than the underlying library.
Public API stability (fewer breaking changes) is the single best predictor of a TypeScript library's adoptability.

How to find abandoned TypeScript projects

Same as JavaScript — the BreakPoint feed filtered to TypeScript, the GitHub adopt-me topic filtered to TypeScript, and npm view <package> time deprecated. The TypeScript-specific layer: check DefinitelyTyped for @types/<package> separately. If the JS library is abandoned but the types are alive, that's a different signal than if both are dead.

Evaluation: the type surface is a feature

TypeScript's biggest advantage for adoption is that the public types are the documentation. Before you read the source, you can read the types. Three things to look for:

Accurate types: the types match the runtime behavior. Look for as casts in the source — too many mean the types lie about what the code does.
Type tests: the library has expectTypeOf or tsd files that exercise the types. These are the equivalent of unit tests for the public contract.
API stability: tsc --noEmit across the major versions of the library. A library with a stable public API surface is much easier to maintain than one with frequent breaking changes.

How to find abandoned TypeScript projects

Evaluation: the type surface is a feature

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