JSON Editor
Edit JSON in Mach Beacon
DevKit previews JSON in the browser. Mach Beacon has a stronger editor for this file type because it can access the filesystem — open real files on disk, save in place, and use richer previews while you work.
Open Mach Beacon (opens in a new tab)JSON Editor
Edit, format, minify, and preview JSON with tree and table views — convert to YAML when needed.
Free online JSON editor with live structured preview. Format or minify JSON in your browser, validate as you type, and convert to YAML or TOML when needed. Nothing is uploaded — your data stays on your device.
What you can do
- Live tree preview of objects and arrays
- Arrays of objects render as editable tables
- Primitive arrays show as numbered value tables
- Click any string, number, or boolean in the preview to edit in place
- Pretty-print and minify with one click
- Convert JSON to YAML or TOML without leaving the page
- Runs fully offline in your browser for privacy
Category: Editors
- json
- editor
- preview
- tree
- table
- format
- pretty
- minify
- validate
- array table
DevKit runs in your browser. No login, no paywall, and nothing is uploaded to a server.
Edit, format, minify, and preview JSON with tree and table views — convert to YAML when needed.
Source
Preview
Loading preview…