Concept

Schema & validation

For validating untrusted input and shaping data. Canonical packages in this category across 7 ecosystems — 10 packages total.

npm· JavaScript

zodv4.4.3

npm

TypeScript-first schema declaration and validation library with static type inference

Maintained. Maintained, actively maintained.

yupv1.7.1

npm

Dead simple Object schema validation

Aging — last published 8 months ago — check before adopting.

joiv18.2.1

npm

Object schema validation

Maintained. Maintained, actively maintained.

PyPI· Python

pydanticv2.13.4

PyPI

Data validation using Python type hints

Maintained. Maintained, actively maintained.

crates.io· Rust

serdev1.0.228

crates.io

A generic serialization/deserialization framework

Aging — last published 8 months ago — check before adopting.

validatorv0.20.0

crates.io

Common validation functions (email, url, length, ...) and trait - to be used with `validator_derive`

Aging — last published over a year ago — check before adopting.

RubyGems· Ruby

dry-validationv1.11.1

RubyGems

Validation library

MaintenanceAging

PopularityWidely used

SecurityClean

DepsZero deps

Aging — last published over a year ago — check before adopting.

Go· Go

github.com/go-playground/validator/v10vv10.30.3

No description provided.

Maintained. Maintained, actively maintained.

Maven· Java

jakarta.validation:jakarta.validation-apiv4.0.0-M1

Maven

No description provided.

Aging — last published 7 months ago — check before adopting.

NuGet· .NET

fluentvalidationv12.1.1

NuGet

No description provided.

Maintained. Maintained, actively maintained.

Other concepts

HTTP client Web framework Dates & times Data / numerics Test framework Database / ORM JSON parsing Logging Linter / formatter Image processing CLI argument parsing UI framework Frontend state management CSS utility framework