Simple
No build steps, no complicated configuration. The fluent interface allows you to model complex structures, while maintaining great code readability.
Welcome to Paseri
A TypeScript parsing, and validation library for structured data.
Performant
Great care has been taken to ensure that parsing is fast. Data copying is reduced to the absolute minimum. An extensive benchmarking suite prevents performance regressions.
Safe
No dynamic code execution means that you can parse in a strict content security policy environment.
Versatile
An extensive collection of built-in schemas is provided, allowing you to model a large variety of complex types, including recursion.
Conformant
Conforms to the Standard Schema 🔗 specification, so you can integrate with dozens of frameworks, and tools out of the box
| Valid input | Paseri (×2.23) | Zod 4 (×1) |
|---|---|---|
| Invalid input | Paseri (×1326) | Zod 4 (×1) |