A configuration as code language with rich validation and tooling.

Android validation library which helps developer boil down the tedious work to three easy steps.

Digital Signature Service : creation, extension and validation of advanced electronic signatures

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

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Create simple Android forms

Utilitários Android para padrões Brasileiros

Trusted Computing based services supporting TPM provisioning and supply chain validation concepts. #nsacyber

A tiny library for easily validating TextInputLayouts in Android

Java Fluent Validator is inspired by Fluent Interface and .Net FluentValidation which defined an inner-DSL within Java language for programmers to use. A fluent interface implies that its primary goal is to make it easy to SPEAK and UNDERSTAND.

An RDF Unit Testing Suite

Android library for fast and simple string validation

High-performance Parser, Validator, and Java Object Model for OpenAPI 3.x

Unicorn - W3C's Unified Validator

YMP是一个非常简单、易用的轻量级Java应用开发框架，涵盖AOP、IoC、WebMVC、ORM、Validation、Plugin、Serv、Cache等特性，让开发工作像搭积木一样轻松！

Ratifier is a form validation library for Android.

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

OpenAPI 3 parser, JSON schema and request validator.

Justify is a JSON validator based on JSON Schema Specification and Jakarta JSON Processing API (JSON-P).

VarSim: A high-fidelity simulation validation framework for high-throughput genome sequencing with cancer applications