draft-2020-12

JSON Schema validator for Draft 2020-12, draft 7 and the v1 dialect. Compiles schemas to plain JavaScript on first use, falls back to an interpreter where code generation is blocked, and points at the line that failed. No required binaries.

High-performance .NET JSON Schema validator implementation based on System.Text.Json. Supports Draft 7, 2019-09, and 2020-12; includes fluent validation and schema creation from .NET types.

A simple command-line utility built with Spring Boot for validating YAML/JSON files against JSON Schema definitions. It's designed for quick checks in development or CI/CD workflows, leveraging Jackson for parsing YAML/JSON and NetworkNT JSON Schema Validator for the core validation logic.

Modern JSON Schema validator and CLI for Erlang/OTP, supporting Draft 6, Draft 7, 2019-09, and 2020-12 with cross-draft references, compiled schemas, standard output formats, and zero runtime dependencies.

JSON Schema (draft 2020-12) parser and validator in pure Standard ML, built on sml-json (MLton + Poly/ML)

An experimental JSON Schema validator for Zig, autonomously implemented by Claude Code. 100% compliant with Draft 7 and Draft 2020-12.