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io-ts is a TypeScript runtime validation library that provides a composable codec system for decoding and encoding data at the boundaries of an application. It defines data schemas using structural types, where the shape of data determines its validity rather than nominal names, and produces runtime type guards from those definitions for efficient validation checks. The library is built around bidirectional codec mappings that combine decoding, encoding, and type checking into single reusable units. It supports a composable decoder pipeline where small validation steps can be chained together
Superstruct is a JavaScript and TypeScript data validation library used to verify that data structures match defined shapes and types. It functions as a composable schema builder and a TypeScript schema validator, ensuring that runtime data checks remain synchronized with static type definitions. The library features a data coercion engine that transforms input values or injects default values before the validation process is executed. It enables the creation of complex validation rules by nesting, merging, or omitting properties from existing structures. Its capabilities cover the validatio
The main features of pelotom/runtypes are: Runtime Validation.
Open-source alternatives to pelotom/runtypes include: agentframework/agentframework. fabian-hiller/valibot. gcanti/io-ts — io-ts is a TypeScript runtime validation library that provides a composable codec system for decoding and encoding… ianstormtaylor/superstruct — Superstruct is a JavaScript and TypeScript data validation library used to verify that data structures match defined… julienvincent/ts-codec. lancercomet/myweblibs.