JSON Formatter & Editor

Format, minify, and edit JSON with our premium custom editor engine. Supports Raw Text, Interactive Tree view, Grid Table view, and Side-by-Side Diff comparison.

Custom JSON Editor Engine

JSON WORKSPACE

JSON Formatter & Editor Online - Professional JSON Tool

Format, minify, edit and compare JSON data online. Rich multi-mode editing (Text, Tree, Table, Diff) processed completely in your browser. 100% client-side privacy.

Powerful JSON Editing Modes

Text Mode: Raw text editing with smart syntax highlighting and instant JSON syntax checking.
Tree Mode: Interactive nested hierarchy. Search, add, clone, or delete elements with a single click.
Table Mode: Transforms arrays of objects into structured tables for easy data scanning and sorting.
Diff Mode: Compare original and modified JSON documents side-by-side with highlighted differences.

How to Format JSON

Paste your JSON text into the editor, or click 'Upload File' to load it locally.
Click 'Format' to structure JSON (2/4 spaces indentation) or 'Minify' to compress it.
Toggle between Text, Tree, Table, and Diff tabs to analyze and edit interactively.
Click 'Save Local' to keep local history or 'Download' to save the structured .json file.

Frequently Asked Questions (FAQs)

Is my JSON data kept secure and private?

Absolutely. All processing and formatting occur inside your local browser memory via JavaScript. No data is sent over the network, ensuring complete confidentiality.

How does the JSON Diff comparison work?

Toggle to the 'Diff' tab, paste the baseline JSON on the left and the modified JSON on the right. Deleted elements are highlighted in red, and added elements are highlighted in green.