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#schema

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

97 records
Tagged “schema”Ranked by health index
npm
92Excellenthealth index
fastify/fastify
Fast and low overhead web framework, for Node.js
JavaScript★ 36.7K↓ 38.6M/moJul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
PyPI · npm
83Goodhealth index
marshmallow-code/marshmallow
A lightweight library for converting complex objects to and from simple Python datatypes.
Python★ 7,246↓ 122M/moJul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
npm · PyPI
83Goodhealth index
rjsf-team/react-jsonschema-form
A React component for building Web forms from JSON Schema.
TypeScript★ 15.8K↓ 11.7M/moJul 23, 2026
Apache-2.0Jul 23, 2026 · metrics 1.13.0
PyPI · npm
81Goodhealth index
python-jsonschema/jsonschema
An implementation of the JSON Schema specification for Python
Python★ 4,961↓ 555M/moJul 16, 2026
MITJul 16, 2026 · metrics 1.13.0
npm
80Goodhealth index
Effect-TS/effect
Build production-ready applications in TypeScript
TypeScript★ 14.9K↓ 0/moJul 13, 2026
MITJul 13, 2026 · metrics 1.13.0
npm
80Goodhealth index
colinhacks/zod
TypeScript-first schema validation with static type inference
TypeScript★ 43.3K↓ 939M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
Packagist
80Goodhealth index
jsonrainbow/json-schema
JSON Schema for PHP
PHP★ 3,629↓ 6.2M/moJul 16, 2026
MITJul 16, 2026 · metrics 1.13.0
npm
77Goodhealth index
graphile/crystal
🔮 Graphile's Crystal Monorepo; home to Grafast, PostGraphile, pg-introspection, pg-sql2 and much more!
TypeScript★ 12.9K↓ 0/moJul 13, 2026
MITJul 13, 2026 · metrics 1.13.0
PyPI
77Goodhealth index
jcrist/msgspec
A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML
Python · C★ 3,860↓ 41.4M/moJul 17, 2026
BSD-3-ClauseJul 17, 2026 · metrics 1.13.0
PyPI
77Goodhealth index
python-openapi/openapi-core
Openapi-core is a Python library that adds client-side and server-side support for the OpenAPI v3.0 and OpenAPI v3.1 and OpenAPI v3.2 specification.
Python★ 367↓ 4.1M/moJul 21, 2026
BSD-3-ClauseJul 21, 2026 · metrics 1.13.0
npm
74Goodhealth index
dotansimha/graphql-code-generator
A tool for generating code based on a GraphQL schema and GraphQL operations (query/mutation/subscription), with flexible support for custom plugins.
TypeScript · MDX★ 11.3KJul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
npm
74Goodhealth index
readmeio/oas
Comprehensive tooling for working with OpenAPI definitions.
TypeScript★ 395↓ 10.3M/moJul 21, 2026
MITJul 21, 2026 · metrics 1.13.0
npm
74Goodhealth index
sourcemeta/jsonschema
The CLI for working with JSON Schema. Covers formatting, linting, testing, bundling, and more for both local development and CI/CD pipelines
Shell · C++★ 288↓ 149.5K/moJul 19, 2026
AGPL-3.0Jul 19, 2026 · metrics 1.13.0
npm
73Goodhealth index
dmno-dev/varlock
AI-safe .env files: Schemas for agents, Secrets for humans.
TypeScript · MDX★ 3,785Jul 19, 2026
MITJul 19, 2026 · metrics 1.13.0
PyPI
73Goodhealth index
mitchelllisle/sparkdantic
✨ A Pydantic to PySpark schema library
Python★ 128Jul 18, 2026
MITJul 18, 2026 · metrics 1.13.0
PyPI
73Goodhealth index
python-openapi/openapi-spec-validator
OpenAPI Spec Validator is a CLI, pre-commit hook and python package that validates OpenAPI Specs against the OpenAPI 2.0 (aka Swagger), OpenAPI 3.0 and OpenAPI 3.1 specification.
Python★ 407↓ 45.8M/moJul 18, 2026
Apache-2.0Jul 18, 2026 · metrics 1.13.0
Maven
72Goodhealth index
schemacrawler/SchemaCrawler
Free database schema discovery and comprehension tool
Java · HTML★ 1,818Jul 17, 2026
Custom licenseJul 17, 2026 · metrics 1.13.0
npm
71Goodhealth index
ajv-validator/ajv
The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)
TypeScript★ 14.8K↓ 1.3B/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
npm · Packagist
71Goodhealth index
koel/koel
Music streaming solution that works.
PHP · TypeScript · Vue★ 17.2K↓ 44/moJul 19, 2026
MITJul 19, 2026 · metrics 1.13.0
npm · Packagist
71Goodhealth index
phanan/koel
Music streaming solution that works.
PHP · TypeScript · Vue★ 17.2K↓ 48/moJul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
PyPI
71Goodhealth index
python-openapi/openapi-schema-validator
OpenAPI schema validator is a Python library that validates schema against OpenAPI Schema Specification v3.0 and v3.1
Python★ 125↓ 26.7M/moJul 18, 2026
BSD-3-ClauseJul 18, 2026 · metrics 1.13.0
PyPI
71Goodhealth index
tfranzel/drf-spectacular
Sane and flexible OpenAPI 3 schema generation for Django REST framework.
Python★ 2,847Jul 18, 2026
BSD-3-ClauseJul 18, 2026 · metrics 1.13.0
PyPI
70Goodhealth index
lk-geimfari/mimesis
Mimesis is a fast Python library for generating fake data in multiple languages.
Python★ 4,829↓ 2.3M/moJul 15, 2026
MITJul 15, 2026 · metrics 1.13.0
npm
70Goodhealth index
standard-schema/standard-schema
A standard interface for TypeScript schema validation libraries
TypeScript★ 3,573↓ 526M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
RubyGems
69Moderatehealth index
dry-rb/dry-schema
Coercion and validation for data structures
Ruby★ 492Jul 17, 2026
MITJul 17, 2026 · metrics 1.13.0
Packagist
69Moderatehealth index
ergebnis/json-schema-validator
📃 Provides a composer package with a JSON schema validator, building on top of justinrainbow/json-schema.
PHP★ 36↓ 1.4M/moJul 22, 2026
MITJul 22, 2026 · metrics 1.13.0
crates.io
68Moderatehealth index
gklijs/schema_registry_converter
A crate to convert bytes to something more useable and the other way around in a way Compatible with the Confluent Schema Registry. Supporting Avro, Protobuf, Json schema, and both async and blocking.
Rust★ 118↓ 181.2K/moJul 17, 2026
Apache-2.0Jul 17, 2026 · metrics 1.13.0
Go
68Moderatehealth index
jackchuka/mdschema
📝 A declarative schema-based Markdown validator that helps maintain consistent documentation structure across projects.
Go★ 71Jul 19, 2026
MITJul 19, 2026 · metrics 1.13.0
npm
67Moderatehealth index
asteasolutions/zod-to-openapi
A library that generates OpenAPI (Swagger) docs from Zod schemas
TypeScript★ 1,602↓ 12M/moJul 16, 2026
MITJul 16, 2026 · metrics 1.13.0