The most powerful data validation library for JS

Build production-ready applications in TypeScript

🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!

A database migration tool. Supports SQL migrations and Go functions.

A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for custom plugins.

The modular and type safe schema library for validating structural data 🤖

Create GraphQL schema and resolvers with TypeScript, using classes and decorators!

A lightweight library for converting complex objects to and from simple Python datatypes.

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

PostgreSQL zero-downtime migrations made easy

An implementation of the JSON Schema specification for Python

Mimesis is a Python library for generating fake but realistic data in multiple languages and locales.

A light-weight, flexible, and expressive statistical data testing library

AI-safe .env files: Schemas for agents, Secrets for humans.

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

Database documentation built easy

JSON Schema for PHP

Versioned database views for Rails

A standard interface for TypeScript schema validation libraries

📋 A schema-based form generator component for Vue.js