NextJSON is a fast, privacy-first Chrome extension for working with JSON. Paste raw JSON into the popup to instantly parse and format it, or let it auto-format any JSON page in your browser. Explore data in Tree, Raw, Graph, Table, or UI Preview views, run JQ/JSONPath queries, search with regex, and edit inline with undo/redo. Fetch from URLs (custom methods + headers), diff payloads, and export to JSON, CSV, Excel, YAML, or TypeScript. Light & dark themes.