zod
https://github.com/colinhacks/zod
TypeScript
TypeScript-first schema validation with static type inference
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- Issues
- Custom registries cannot support callbacks with schemas as arguments
- Add `parseMaybeAsync` method for conditional async parsing
- Zod v4: Transform function loses type inference with generic functions and causes issues with implementAsync
- `z.toJSONSchema` with `z.record(z.enum([...]), ...)` resulting in optional keys
- Error when evaluating SSR module ./server.mjs: Cannot split a chunk that has already been edited
- Question / Proposal: Is there an official way to stringify or print Zod schemas (value + type)?
- Proposal: `z.registerPlugin()` API for extending Zod
- Feature request : infer error message as a union of all possible string literals
- zod/mini is still not tree-shaken correctly inside NextJS
- Branding gets dropped in zod v4 from transforms and pipes
- Docs
- TypeScript not yet supported