JSON Editor

JSON Editor is a JavaScript library that generates HTML forms from JSON Schema (versions 3 and 4). Version 0.7.28 is the latest stable release as of this writing, but the project appears to be in maintenance mode with no recent updates. It supports multiple CSS frameworks (Bootstrap, Foundation, jQueryUI) and template engines (Mustache, Underscore, Handlebars, etc.). Unlike newer alternatives like react-jsonschema-form, JSON Editor is dependency-free and works with vanilla JS, making it suitable for legacy projects or where a lightweight, framework-agnostic solution is needed.