
ESLint
Tailwind CSS
VS Code
Next.js
Angular.io
stylelint
GitHub
An opinionated code formatter

JSONFormatter.org
Code Beautify JSON Validator
FreeFormatter
CyberChef
IT Tools
CodeBeautify
CodeSwissKnife
55 free formatters, converters, generators, and reference tools for developers — JSON, Base64, JWT, regex, hashes, subnets. Nothing you paste is ever uploaded.

Which is more popular?
Based on our record, Prettier seems to be more popular. It has been mentioned 307 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | prettier.io | whitekit.dev |
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| Platforms | — | |
| Company | Startup from the United States | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Prettier yet.
WhiteKit brings together 55 developer tools in one place: formatters (JSON, XML, SQL, YAML), converters, security utilities (JWT, hashing, encoding), network calculators, and text tools. Everything runs 100% client-side. Your data never leaves your device, so you can safely paste API keys,...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of WhiteKit.dev yet.
Walkthroughs and reviews on video.
Code Formatting with Prettier in Visual Studio Code
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Prettier and WhiteKit.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


This is precisely the Formatter's role: to settle this kind of debate, once and for all. With Prettier (or an equivalent), a configuration file is all it takes to close the subject:. - Source: dev.to / 3 days ago
For static analysis there's PHPStan for PHP and Mypy for Python. For formatting, Prettier and gofmt are the cheapest guardrail there Is, with zero excuse not to run one. For security, Semgrep Covers the same principle at higher stakes. - Source: dev.to / about 1 month ago
Prettier - an opinionated code formatter for many languages, including TypeScript and JavaScript. - Source: dev.to / 2 months ago
Tracking WhiteKit.dev since Aug 2026.
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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
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A utility-first CSS framework for rapidly building custom user interfaces.
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Build and debug modern web and cloud applications, by Microsoft
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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.
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