
JSONLint
JSONFormatter.org
CodeBeautify
Code Beautify JSON Validator
JSON Formatter & Validator
ExtendsClass JSON Formatter
10015.io
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.

DevToys
CyberChef
SafeUtils
DevToys for Mac
CodeSwissKnife
Boop
DevBox
One app for your daily dev tasks

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | freeformatter.com | devknife.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of FreeFormatter yet.
DevKnife is a macOS app that puts everyday developer tools in one place. It includes a JSON editor and formatter, text compare, JWT decoder, IP location lookup, port scanner, and many more. Instead of switching between websites, CLI tools, and separate apps, you can open DevKnife and handle these...
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


No analysis of FreeFormatter yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing FreeFormatter and DevKnife.
DevKnife's answer:
DevKnife is a lightweight, native macOS app that bundles everyday developer utilities into one place. Instead of switching between separate websites, CLI tools, or multiple apps, you can handle tasks like JSON formatting, WHOIS lookups, port scanning, JWT decoding, hashing, and more from a single, fast, offline-friendly tool.
Its uniqueness comes from combining these small but essential tools into a consistent, Mac-native experience.
Share your experience with using FreeFormatter and DevKnife. For example, how are they different and which one is better?
When comparing FreeFormatter and DevKnife, you can also consider the following products.

JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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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
Compare JSONFormatter.org to FreeFormatter or DevKnife:


Online Tools like Beautifiers, Editors, Viewers, Minifier, Validators, Converters for Developers: XML, JSON, CSS, JavaScript, Java, C#, MXML, SQL, CSV, Excel
Compare CodeBeautify to FreeFormatter or DevKnife:

SafeUtils: Native MacOS, Linux and Windows desktop application with 110+ carefully crafted tools for yours and your teams everyday work with sensitive data in various formats.
Compare SafeUtils to FreeFormatter or DevKnife: