schema

effect

+61

Build production-ready applications in TypeScript

varlock

+40

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

pressly/goose

+21

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

pandera

+11

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

mimesis

+10

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

msgspec

+8

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

datacontract-cli

+7

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

valibot

+6

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

formisch

+5

The lightweight, schema-first, and fully type-safe form library for React, Solid, Vue, Svelte and more.