Show HN: schema-tools – Build and Edit JSON Schemas (schematools.herondata.io)

We built this in a day to help save some time internally and wanted to share as others might find it useful for managing structured output schemas. There’s a few other tools out there - but none had exactly what we needed!

Key Features:

1. Two-Way Editing: Paste in an existing JSON schema and edit it within the UI

2. Data-Type Validations: add validations to fields

3. Local Storage & Version History: track your edits, don’t lose changes

Link: https://schematools.herondata.io

Source Code: https://github.com/heron-data/schema-tools