svelte-jsoneditor

A web-based tool to view, edit, format, transform, and validate JSON. The library is written with Svelte, but can be used in plain JavaScript too, and in any framework (SolidJS, React, Vue, Angular, etc). View and edit JSON, has a low-level text editor and high-level tree view and table view. Format (beautify) and compact JSON. Sort, query, filter, and transform JSON. JSON schema validation and pluggable custom validation. Color highlighting, undo/redo, search and replace. Utilities like a color picker and timestamp tag. Handles large JSON documents up to 512 MB.