A library of string validators and sanitizers.

:100:Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving - go-playground/validator

The Nu Html Checker (vnu). Contribute to validator/validator development by creating an account on GitHub.

express-validator is a set of express.js middlewares that wraps the extensive collection of validators and sanitizers offered by validator.js.

The fastest JSON schema Validator.

https://validator.github.io/validator/ Sponsor · validator · validator Public · The Nu Html Checker (vnu) Java 1.9k 323 · htmlparser · htmlparser Public · The Validator.nu HTML parser https://about.validator.nu/htmlparser/ Java 65 28 · ...

December 24, 2025 - Package validator implements value validations for structs and individual fields based on tags.

HTML form validation. Perfectly made for all scenerios, lightweight, semantic & easy to use - yairEO/validator

Use the jar file either for batch validation of HTML documents directly from the command line and from other scripts/apps, as documented at http://validator.github.io, or as a simple stand-alone HTTP server that provides a service for browser-based checking of HTML documents over the Web—similar to http://html5.validator.nu/ and http://validator.w3.org/nu/.

Validate issue forms response using custom rules. Contribute to issue-ops/validator development by creating an account on GitHub.

Provides tools to validate values. Contribute to symfony/validator development by creating an account on GitHub.

Allows use of decorator and non-decorator based validation. Internally uses validator.js to perform validation.

An express.js middleware for validator.js. Contribute to express-validator/express-validator development by creating an account on GitHub.

A simple and composable way to validate data in JavaScript (and TypeScript).

>>> import validators >>> >>> validators.email('someone@example.com') True

Pull Request Validator is a GitHub Action that verifies if PR is reviewed and if the ci has passed.

validate your data and create nice reports straight from R - Appsilon/data.validator

A data validation library in JavaScript for the browser and Node.js, inspired by Laravel's Validator. - mikeerickson/validatorjs

The most awesome validation engine ever created for PHP - Respect/Validation

Python Data Validation for Humans™. Contribute to python-validators/validators development by creating an account on GitHub.