Simon Willison’s Weblog

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8th March 2025

Tool JSON Schema Builder — Create JSON schemas interactively with this builder tool that allows you to define properties, set data types, and configure nested objects through an intuitive form interface. The generated schema is displayed in real-time and can be copied to your clipboard for use in your applications. Your schema is automatically saved in the URL, making it easy to share or revisit your work later.
Posted 8th March 2025 at 12:17 am

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