Top SCHEMA GitHub Repositories & Tools (2026)

FastAPI framework, high performance, easy to learn, fast to code, ready for production

AI-assisted PCB design for KiCAD 10. Native KiCAD plugin — a single Rust binary exposing 217 schematic, layout, routing, placement, design-review, and manufacturing tools to Claude, or the LLM of your choosing

TypeScript-first schema validation with static type inference

Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF

Free, simple, and intuitive online database diagram editor and SQL generator.

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

Flink CDC is a streaming data integration tool

Super-fast/easy runtime validators and serializers via transformation

System.Text.Json-based support for all of your JSON needs.

🗹 TypeScript HTTP Framework focusing on e2e type-safety, easy setup, performance & great developer experience

Flamingock brings Change-as-Code (CaC) to your entire stack. It applies versioned, auditable changes to the external systems your application depends on — such as schemas, message brokers, databases, APIs, cloud services, and any other external system your application needs.

Generate Entity Framework Core model from an existing database

A live database structure viewer for Laravel that renders your schema as a scrollable, zoomable ER diagram. Structure only, never data.

Cross-platform desktop utility tool for classic and vintage hardware repairing, troubleshooting, diagnosing and tracking repairs. Currently supporting many Commodore computers and a single Amstrad and ZX Spectrum. Native support for Windows, Linux and macOS.

pg-index-health is an embeddable schema linter for PostgreSQL that detects common anti-patterns and promotes best practices.

Customizable MDX documentation for GraphQL schemas

A typed, zero-dependency schema generator and query builder for Sanity.

Code mutations in your project or schematics were never easier than now.

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

⛯ Typesafe environment variables with ArkType, Zod, or Valibot.