ArkType is a runtime validation library that parses optimized validators from familiar, type-safe syntax.
It can be used to check external data like JSON payloads or form submissions at the boundaries of your code (similar to Zod or Yup).
demo.mp4
See our docs site
We accept and encourage pull requests from outside ArkType. Planned work is tracked in this GitHub project.
Depending on your level of familiarity with type systems and TS generics, some parts of the codebase may be hard to jump into. That said, there's plenty of opportunities for more straightforward contributions. We'd generally recommend starting with one of these issues labeled external-contributor-friendly.
If you're planning on submitting a non-trivial fix or a new feature, please create an issue first so everyone's on the same page. The last thing we want is for you to spend time on a submission we're unable to merge.
When you're ready, check out our guide to get started!
This project is licensed under the terms of the MIT license.
We will not tolerate any form of disrespect toward members of our community. Please refer to our Code of Conduct and reach out to [email protected] immediately if you've seen or experienced an interaction that may violate these standards.
We've been working full-time on this project for multiple years and it means a lot to have the community behind us.
If the project has been useful to you and you are in a financial position to do so, please chip in via GitHub Sponsors.
Otherwise, consider sending me an email ([email protected]) or message me on Discord to let me know you're a fan of ArkType. Either would make my day!
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