Show HN: Generate JSON Schema from a readable model – no login
Writing JSON Schema by hand is tedious and error-prone, especially across teams.
I pulled one of the most useful parts of our modelling platform (Jargon) and turned it into a standalone tool:
- Model your data in plain text (not AI — just a DSL)
- Get clean, valid JSON Schema instantly
- No YAML, no login, no boilerplate
Tool: https://jargon.sh/jsonschema
Docs: https://docs.jargon.sh/#/pages/language
It's powered by the same engine we use in real-world data governance work, including some real-world usage with the team behind the UN Transparency Protocol (UNTP).