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Top 10 TypeScript typescript-definition Projects
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Project mention: TypeScript's progressive adoption strategy for front-end projects | dev.to | 2024-12-03
Sometimes, the community will provide unofficial type definitions. You can find it in the DefinitelyTyped repository (https://github.com/DefinitelyTyped/DefinitelyTyped), or search for @types/library-name on GitHub.
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Civic Auth
Web2 & Web3 login in a simple SDK. Drop Civic Auth into your app with native TS/JS support. Email login, SSO options, embedded wallets, and full session management. Minimal config. Deploy in under 5 minutes.
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Project mention: Good-bye core types; Hello Go as we know and love it | news.ycombinator.com | 2025-03-26
I sometimes see types in TS with complex generics like [1], but instead of being general like in this example, they're more specific to the type of their values.
Couldn't find a proper example on the spot in an open source project.
[1] https://github.com/sindresorhus/type-fest/blob/main/source/g...
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true-myth
Safe and idiomatic TypeScript types to handle null, error, and async code handling: Maybe, Result, and Task types that are really nice.
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SurveyJS
JavaScript Form Builder with No-Code UI & Built-In JSON Schema Editor. Add the SurveyJS white-label form builder to your JavaScript app (React/Angular/Vue3). Build dynamic JSON forms without coding. Fully customizable, works with any backend, perfect for data-heavy apps. Learn more.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
TypeScript typescript-definitions discussion
TypeScript typescript-definitions related posts
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Branded Types for TypeScript
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Enforcing Localization through Types
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Boost Your JavaScript with JSDoc Typing
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Are there any typescript validation libraries for schema.org json-ld metadata?
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Essential Code Organization Principles
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A note from our sponsor - Civic Auth
www.civic.com | 31 Aug 2025
Index
What are some of the best open-source typescript-definition projects in TypeScript? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | DefinitelyTyped | 50,257 |
| 2 | type-fest | 15,936 |
| 3 | true-myth | 1,237 |
| 4 | schema-dts | 1,048 |
| 5 | dts-bundle-generator | 836 |
| 6 | carbon-icons-svelte | 429 |
| 7 | type-plus | 396 |
| 8 | paypal-js | 289 |
| 9 | musickit-typescript | 18 |
| 10 | SuiteScript-2.0-Type-Declarations | 12 |
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