JSON Editor Online: Tree View and Raw Edit
Overview
Tree-view editing lets you modify JSON values without touching brackets or quotes. Click a value to edit it inline, drag nodes to reorder, or delete a key with one click. The raw text panel stays in sync so you can switch modes mid-edit without losing changes.
How to Use This Tool
Paste your JSON to load it into the tree view. Click any value to edit it. Use the Add Key button to insert a new field. Switch to raw text mode to make bulk changes, then switch back to see the updated tree.
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PDF Tool →Frequently Asked Questions
Can I reorder keys in the JSON editor?
Yes. In tree view mode, drag and drop nodes to reorder. The raw JSON updates instantly with the new key order.
What happens if I break the JSON in raw text mode?
The editor validates on every keystroke. If you introduce a syntax error, an inline error message appears and the tree view freezes until the error is fixed.
Does the JSON editor support large files?
Yes, up to a few MB. Very large files (10MB+) may cause tree rendering to slow. For large files, use raw text mode and the formatter instead.