Validator GitHub Repositories (2026) · Open Source Tools

Super-fast/easy runtime validators and serializers via transformation

Prometheus rule linter/validator

JSON Schema validator that compiles to plain JavaScript, still runs where code generation is blocked, and can be compiled away at build time. Passes the full official test suite. https://socket.dev/npm/package/ata-validator

Jito Foundation MEV Solana Client

Extracts information about PHP class' properties using metadata of popular sources

JSONSchema (draft 2020-12, draft 2019-09, draft-7, draft-6, draft-4) Validation using Go

Yet Another Validation for Java (A lambda based type safe validation framework)

An RPKI Validator and RTR server written in Rust

Canonical GTFS Validator project for schedule (static) files.

Aplus Framework Validation Library

Validation classes for a wide range of domains, and the ability to chain validators to create complex validation criteria

Validate and sanitize arrays and objects.

Brazilian documents validator for Go: CPF, CNPJ, CEP, IE, CNJ, NF-e and more

Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.

Web crawler for checking the validity of your documents.

A modern and lightweight library for working with email addresses in Java

Business schema language and runtime

The most awesome validation engine ever created for PHP