Schema GitHub Repositories (2026) · Open Source Tools

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

Build production-ready applications in TypeScript

Linked Open Data Modeling Language

KCL Language Core and API

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

Protocol Buffers for ECMAScript. The only JavaScript Protobuf library that is fully-compliant with Protobuf conformance tests.

Modern data layer for TypeScript apps - type-safe ORM, built-in access control, automatic query services

The TypeScript implementation of Connect: Protobuf RPC that works.

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

ER schemas on a FigJam-like infinite canvas

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

JSON Schema for PHP

Automate Kubernetes Configuration Editing

A fluent builder Schema.org types and ld+json generator

Terraform-style, declarative Postgres schema migration. Agent friendly.

A Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.

Coercion and validation for data structures

🧬 Schema for everything - faster than hand-written code.

🦩 Joi like validations for TypeScript

Open-source data contract testing for Snowflake, Databricks, BigQuery, Kafka & 15 more. Built on the Open Data Contract Standard (ODCS). MIT.