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JSONFormatter.org VS FormatJSONOnline

Compare JSONFormatter.org VS FormatJSONOnline and see what are their differences

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JSONFormatter.org logo JSONFormatter.org

Online JSON Formatter and JSON Validator will format JSON data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON

FormatJSONOnline logo FormatJSONOnline

Easily format, validate, and beautify JSON data with our free online tool. Includes powerful JSON conversion features for seamless data management
  • JSONFormatter.org Landing page
    Landing page //
    2022-02-01
  • FormatJSONOnline Home page
    Home page //
    2025-05-22

Format JSON Online is a fast, free, and privacy-focused tool to format, validate, minify, and beautify JSON data directly in your browser. Built for developers and API testers, it offers support for large JSON files without requiring login or sending data to a server. Additional features like JSON-to-CSV, JSON-to-XML, and cURL conversion make it a versatile tool for debugging, transforming, and visualizing JSON. Light ads may be introduced in the future to support development, but user privacy and experience will always be top priorities.

JSONFormatter.org features and specs

  • User-Friendly Interface
    JSONFormatter.org offers a clean and intuitive interface that makes it easy for users to format, validate, and edit JSON data quickly.
  • Multiple Tools
    The website provides a variety of tools including JSON beautifier, minifier, validator, and converter, which can be helpful for developers working with JSON.
  • Free to Use
    The platform is completely free, which makes it accessible for anyone who needs to format or validate JSON data without any cost.
  • Cross-Platform
    Since it's a web-based tool, it can be accessed from any device with a browser, making it versatile for use across different operating systems.
  • Additional Features
    Beyond JSON formatting, the site also offers tools for HTML, XML, CSV, and other data formats, making it a versatile resource for developers.

Possible disadvantages of JSONFormatter.org

  • No Offline Access
    The tool requires an internet connection to use, which can be a limitation for developers working in environments with limited connectivity.
  • Ads
    The free version of the website includes advertisements, which can be distracting and impact the user experience.
  • Privacy Concerns
    Submitting JSON data to a third-party web service can raise privacy concerns, especially if the data is sensitive or confidential.
  • Dependency on Web Browser
    As a web-based tool, it depends on the performance and reliability of the web browser, which may vary between users and devices.
  • Limited Customization
    The tool does not offer extensive customization options for formatting rules, which might be a drawback for users with specific formatting needs.

FormatJSONOnline features and specs

No features have been listed yet.

Analysis of JSONFormatter.org

Overall verdict

  • Overall, JSONFormatter.org is considered a good tool. Its simplicity, functionality, and accessibility make it a preferred choice for developers and programmers who need to work with JSON data efficiently. It is reliable for both quick fixes and more thorough data inspections.

Why this product is good

  • JSONFormatter.org is a well-regarded tool for several reasons. It offers an easy-to-use interface for formatting and beautifying JSON data, which is particularly useful for developers working with JSON files. The tool helps in identifying syntax errors by displaying error messages, and its ability to minify JSON makes it convenient for optimizing payload sizes in web applications.

Recommended for

  • software developers who need to debug or present JSON data
  • web developers optimizing JSON payloads for web applications
  • students learning to structure and validate JSON files
  • anyone needing to quickly format or minify JSON without installing software

Category Popularity

0-100% (relative to JSONFormatter.org and FormatJSONOnline)

JSONFormatter.org

FormatJSONOnline

Developer Tools
87 87%
Developer Tools
13% 13
Development
100 100%
Development
0% 0
JSON
82 82%
JSON
18% 18
IDEs And Text Editors
72 72%
IDEs And Text Editors
28% 28

Questions and Answers

As answered by people managing JSONFormatter.org and FormatJSONOnline.

Who are some of the biggest customers of your product?

FormatJSONOnline's answer:

FormatJSONOnline is used by developers and teams across companies and institutions, though exact names aren’t tracked due to privacy-first architecture. However, notable daily users include:

Developers from GitHub

Engineers at Microsoft (based on public traffic data)

API testers from Postman community

Students from Indian Institutes of Technology (IITs)

Indie hackers and open-source contributors

Which are the primary technologies used for building your product?

FormatJSONOnline's answer:

React.js (for UI and client-side rendering)

Tailwind CSS (for fast and clean styling)

Next.js (for performance and SEO)

Vercel (for deployment and CDN optimization)

Why should a person choose your product over its competitors?

FormatJSONOnline's answer:

Unlike many JSON tools that are bloated, ad-heavy, or slow, FormatJSONOnline is:

Blazing fast, even for large (20MB+) files

Privacy-focused, with zero data sent to any server

Minimalist and distraction-free

Mobile and tablet responsive It’s designed specifically for developers who value performance and simplicity.

What's the story behind your product?

FormatJSONOnline's answer:

The idea came while working on multiple API integrations where formatting large JSON responses quickly became frustrating. Most existing tools either lagged, required uploading sensitive data, or were filled with ads. FormatJSONOnline was built as a clean, fast, and secure alternative that works instantly, with no signup, no tracking, and no BS.

How would you describe your primary audience?

FormatJSONOnline's answer:

The primary audience includes:

Front-end and back-end developers

API testers and engineers

Data analysts and tech leads

Students and hobby coders working with JSON

What makes your product unique?

FormatJSONOnline's answer:

FormatJSONOnline is uniquely optimized for speed, privacy, and simplicity. It processes even large JSON files with minimal delay, works entirely on the client-side (nothing is sent to a server), and offers formatting, validation, minification, and copy-to-clipboard — all in one place with zero tracking or ads.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare JSONFormatter.org and FormatJSONOnline

JSONFormatter.org Reviews

  1. ip
    It's my go to tool for JSON

    JSONFormatter.org is an invaluable tool for anyone working with JSON data. Its simple and user-friendly interface makes formatting, validating, and analyzing JSON effortless. The website's clean design allows for easy navigation and top-notch functionality.

    🏁 Competitors: CodeBeautify

FormatJSONOnline Reviews

We have no reviews of FormatJSONOnline yet.
Be the first one to post

Social recommendations and mentions

Based on our record, JSONFormatter.org seems to be a lot more popular than FormatJSONOnline. While we know about 28 links to JSONFormatter.org, we've tracked only 2 mentions of FormatJSONOnline. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

JSONFormatter.org mentions (28)

  • From Readable to Lightweight: Understanding JSON Minification
    Online Tools: Websites like JSONLint or jsonformatter.org let you paste JSON and get a minified version instantly. - Source: dev.to / 26 days ago
  • JSON Diff: Comparing JSON Data Effectively
    JSON Formatter & Validator This tool focuses on formatting JSON data while offering basic diff capabilities. • Features: Validate, format, and compare JSON data. • Use Case: Ideal for developers who need an all-in-one solution. • Website: https://jsonformatter.org How to Use JSON Diff Tools. - Source: dev.to / 11 months ago
  • How to be more productive when learning a new language
    3. JSON Formatter The GeoJSON file I used is super hefty, holding nested geographical information about country border locations as coordinate pairs, and information on country geometry, name etc. There are any number of ways you can show this file to get it to make sense, but I found another online tool that helped me break it down into readable chunks was JSON Formatter. It also helps validate JSON, useful if... - Source: dev.to / over 1 year ago
  • Show HN: VS Code Extension to skip the noisy web tools (JSON Prettify, and more)
    Hi HN, Simple online tools on the web have become unnecessary greedy. For example, * https://jsonformatter.org/ displays 7 ads on page load * https://convertcase.net/ had 4 ads plus a Google Vignette. And many more sites do the same thing. It's just noisy, which is why I created this VS Code Extension where you don't need to even leave your editor for your small web operations. I also built a Desktop app and an... - Source: Hacker News / about 1 year ago
  • Blasphemous - Stuck at 148.25% - SOLUTION
    Now with your savefile decrypted click the "copy" button on the "output" tab (to the right of the trash can) and proceed to this website: https://jsonformatter.org/ Here you'll make the code more readable so paste what you've copied on the left box and click on the button on the middle that says "Format/Beautify". Then go to the box on the right where the code should be nice and pretty now and (once again) copy... Source: about 2 years ago
View more

FormatJSONOnline mentions (2)

  • How to Format and Validate JSON in the Browser
    In this guide, you'll learn how to format, validate, and manipulate JSON data in your browser using Format JSON Online, a fast, privacy-first tool for developers. - Source: dev.to / 4 months ago
  • Essential Resources for Frontend Developers: Links You Can’t Live Without
    This list spans the entire frontend dev lifecycle—learning, coding, designing, testing, and deploying. Tools like Format JSON Online are clutch for handling JSON data, a common task when building API-driven apps. Save these links, and you’ll be ready to tackle any frontend challenge! - Source: dev.to / 4 months ago

What are some alternatives?

When comparing JSONFormatter.org and FormatJSONOnline, you can also consider the following products

JSON Editor Online - View, edit and format JSON online

JSONLint - JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.

JSON Formatter & Validator - The JSON Formatter was created to help with debugging.

FreeFormatter - Freeformatter is a platform that contains free online tools for developers, including formatters (json, html, xml, sql, etc.), minifiers (css, javascript), compactors, validators, and much more.

Easy JSON Viewer - Free online JSON viewer and formatter tool. Transform, validate and analyze JSON data instantly.

JSONGuide Json formatter - Online JSON Formatter / Beautifier and JSON Validator helps to format JSON data, validate, parse, view, edit and beautify. Save and Share formatted JSON

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