# ju > JSON schema Utils ## Pages in this subsection - [ju](ju.html.md): JSON schema Utils - [ju.json_schema](ju.json_schema.html.md): This module provides tools to transform Python functions to JSON schemas. - [ju.oas](ju.oas.html.md): OpenAPI specification tools. - [ju.pydantic_util](ju.pydantic_util.html.md): Tools for working with Pydantic models. - [ju.rjsf](ju.rjsf.html.md): Tools for React-JSONSchema-Form (RJSF) - [ju.traitlets_util](ju.traitlets_util.html.md): Utils for traitlets - [ju.util](ju.util.html.md): Ju base utils. - [ju.viz](ju.viz.html.md): Visualization functions for Ju. ## Optional - [Top-level llms.txt](../llms.txt): Complete documentation index.