Is my JSON data sent to a server?
No, all processing is done locally in your browser. Your data never leaves your device.
Does it work offline?
Yes, once the page is loaded, you can use the editor completely offline.
Does it handle large files?
Yes, the editor is built on Monaco (VS Code's editor core), which is optimized for handling large text files efficiently.
How do I format messy JSON?
Simply paste your JSON content and click the 'Format' button in the toolbar to automatically beautify it.
Can I validate JSON schemas?
Currently, we support syntax validation. Full JSON Schema validation is planned for a future update.
Is there a dark mode?
Yes! You can toggle between light and dark themes using the sun/moon icon in the editor toolbar.
How do I fix trailing commas?
Standard JSON does not allow trailing commas. The editor will highlight this as an error, which you must remove manually or use a lenient parser if available.
Can I collapse sections?
Yes, clicking the small arrow icons next to line numbers in the editor allows you to fold and unfold objects and arrays.
Is there a search function?
Yes, press Ctrl+F (or Cmd+F on Mac) within the editor to search for specific keys or values.
What happens if I paste invalid JSON?
The editor will show red error markers indicating where the syntax is incorrect, helping you debug the issue.