Item logo image for JSONFormatter Pro

JSONFormatter Pro

Item media 5 (screenshot) for JSONFormatter Pro
Item media 1 (screenshot) for JSONFormatter Pro
Item media 2 (screenshot) for JSONFormatter Pro
Item media 3 (screenshot) for JSONFormatter Pro
Item media 4 (screenshot) for JSONFormatter Pro
Item media 5 (screenshot) for JSONFormatter Pro
Item media 1 (screenshot) for JSONFormatter Pro
Item media 1 (screenshot) for JSONFormatter Pro
Item media 2 (screenshot) for JSONFormatter Pro
Item media 3 (screenshot) for JSONFormatter Pro
Item media 4 (screenshot) for JSONFormatter Pro
Item media 5 (screenshot) for JSONFormatter Pro

Overview

An advanced JSON editor, formatter, and viewer with Tree, Graph, YAML, CSV and Diff tools.

JSONFormatter Pro is the ultimate developer tool designed to make viewing, editing, and formatting JSON data effortless directly from your browser. Whether you are debugging API responses, analyzing complex data structures, or comparing payload differences, this extension provides everything you need in one powerful interface. Tired of messy, unreadable JSON walls of text? JSONFormatter Pro automatically intercepts raw JSON responses in your browser tabs and converts them into beautiful, readable, and interactive views. 🚀 KEY FEATURES: • Multiple View Modes: Switch seamlessly between Raw, Tree, and Graph visualizations to understand your data architecture. • Advanced JSON Editor: Edit, format, and minify JSON data on the fly with real-time error validation. • JSON Diff Checker: Instantly compare two JSON objects to highlight line-by-line additions, deletions, and modifications. • Format Conversions: Convert your JSON data into YAML or CSV formats with a single click. • Data Exporting: Easily download your formatted JSON, YAML, or CSV data straight to your local machine. • Tab History & Storage: Never lose your work. The extension automatically saves a local history of your recently parsed JSON files. • Customization: Choose from multiple beautiful syntax-highlighting color themes, including comprehensive Dark Mode support. • Bookmark Integration: Save your favorite formatted endpoints directly to your Chrome bookmarks. Built with performance in mind, JSONFormatter Pro works completely offline and processes data locally on your machine to ensure your sensitive JSON payloads remain secure and private. Perfect for front-end developers, back-end engineers, data analysts, and anyone who works with REST APIs or JSON data on a daily basis. Affiliate Disclosure This extension may use affiliate links when you choose to open products or services on supported platforms. These links help support development at no additional cost to you. These commissions help support ongoing development, improvements, and maintenance of the extension. Affiliate Disclosure This extension may use affiliate links when you choose to open products or services on supported platforms. These links help support development at no additional cost to you. These commissions help support ongoing development, improvements, and maintenance of the extension.

Details

  • Version
    1.0.1
  • Updated
    March 2, 2026
  • Size
    183KiB
  • Languages
    54 languages
  • Developer
    Website
    Email
    narendersaini153@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization
The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

Related

DataFormat Pro

4.8

Professional JSON/XML formatter with syntax highlighting, validation, and auto-detection

DevTools

0.0

40+ developer tools: JSON formatter, Base64/URL encoder, hash generator, JWT debugger, regex tester, and more

JSON Formatter Pro

5.0

Auto-format and validate JSON & API responses instantly. Syntax highlighting, tree view, dark mode. Data never leaves your browser.

Stack Online Tools – Developer Utilities

0.0

Productivity and developer tools with JSON formatter, text converters, password generator, SEO tools, and calculators.

JSONLens

0.0

Beautiful JSON viewer with syntax highlighting, collapsible trees, and offline formatting by AIO.com.ai

JSONGenie - Beautify, Format & Visualize

4.9

JSONGenie: View raw JSON in an interactive, collapsible tree with syntax highlighting and raw/parsed toggle for easy navigation.

JSON Editor

3.2

A tool to view, edit, format, repair, query, transform, and validate JSON

JSON Viewer and Editor

0.0

JSON viewer and editor with syntax highlighting, JSONPath queries, real-time editing. Works with SharePoint and OneDrive.

JSON Viewer

5.0

Pretty JSON Viewer – an online json formatter, validator, and viewer for easy formatting and validation of json files.

JSON Formatter - Beautify & Validate

0.0

Format, beautify & validate JSON with syntax highlighting.

JSON Viewer

4.7

Most aesthetic & customizable JSON/JSONP viewer with themes, custom search, syntax highlighting/checking & copy features.

JSON Toolkit

5.0

A powerful tool for testers: validation, schemas, comparison, and JSON transformation

DataFormat Pro

4.8

Professional JSON/XML formatter with syntax highlighting, validation, and auto-detection

DevTools

0.0

40+ developer tools: JSON formatter, Base64/URL encoder, hash generator, JWT debugger, regex tester, and more

JSON Formatter Pro

5.0

Auto-format and validate JSON & API responses instantly. Syntax highlighting, tree view, dark mode. Data never leaves your browser.

Stack Online Tools – Developer Utilities

0.0

Productivity and developer tools with JSON formatter, text converters, password generator, SEO tools, and calculators.

JSONLens

0.0

Beautiful JSON viewer with syntax highlighting, collapsible trees, and offline formatting by AIO.com.ai

JSONGenie - Beautify, Format & Visualize

4.9

JSONGenie: View raw JSON in an interactive, collapsible tree with syntax highlighting and raw/parsed toggle for easy navigation.

JSON Editor

3.2

A tool to view, edit, format, repair, query, transform, and validate JSON

JSON Viewer and Editor

0.0

JSON viewer and editor with syntax highlighting, JSONPath queries, real-time editing. Works with SharePoint and OneDrive.

Google apps