JSON Form & Tree Editor

Format, validate, inspect, and visually edit JSON structures using an interactive tree view and form editor. Add, rename, or delete keys, edit value data types, and validate syntax with real-time error checking.

Why Use This Tool?

• API Response Inspection: Inspect complex nested JSON API responses in a collapsible tree structure.
• Config File Editing: Edit JSON configuration files visually without making syntax bracket errors.
• Data Type Validation: Convert string numbers, booleans, and null values with visual controls.

How to Use

1. Paste raw JSON data into the text workspace or start from a blank tree.
2. Expand/collapse nodes in Tree View to edit keys, values, and data types visually.
3. Copy the formatted, error-free JSON output.

Real Working Example

Input:

{"user":{"id":1,"name":"Alice","roles":["admin","editor"]}}

Output Result:

[Interactive Tree View: user -> id: 1 (number), name: "Alice" (string), roles: Array[2]]

Important Technical Details & Features

• Bi-Directional Sync: Edits in visual tree view sync instantly with raw JSON text editor.
• Strict JSON Parser: Flags missing quotes, trailing commas, and bracket mismatches in real time.
• 100% Client-Side Engine: JSON payloads stay private in browser memory.

Related Editors, Design & Media Tools

• JSON Formatter: Format and validate JSON.
• JSON Diff: Compare two JSON objects.
• JSON to YAML Converter: Convert JSON to YAML.