
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.

Nim (programming language)
Go Programming Language
V (programming language)
C++
Perl
D (Programming Language)
Zig
Programming language with Ruby-like syntax that compiles to efficient native code.
Which is more popular?
Based on our record, Crystal (programming language) seems to be more popular. It has been mentioned 123 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | whitekit.dev | crystal-lang.org |
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In their own words, as submitted to SaaSHub.


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,...
No description of Crystal (programming language) yet.
What each product offers, as listed by its team.


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


No analysis of WhiteKit.dev 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.


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


Tracking WhiteKit.dev since Aug 2026.
Which can include type assertions but also a lot more. The agents seem to do well with this. I've also had good results using agents to write Crystal https://crystal-lang.org/ which is Ruby-like but does have the static types and... - Source: Hacker News / 5 months ago
Sounds a lot like Crystal, which is also similar to Ruby and features a green fiber runtime: https://crystal-lang.org/#concurrency. - Source: Hacker News / 5 months ago
> 1. Go with a better type system. A compiled language, that has sum types, no-nil, and generics. I was looking for something like that and eventually found Crystal (https://crystal-lang.org) as a closest match: LLVM compiled, strong... - Source: Hacker News / 8 months ago
When comparing WhiteKit.dev and Crystal (programming language), you can also consider the following products.

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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The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.
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Code Beauty’s JSON Validator or JSON Lint is easy to use tool to copy, paste and validate JSON data.
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Go, also called golang, is a programming language initially developed at Google in 2007 by Robert...
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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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Simple, fast, safe, compiled language for developing maintainable software.
Compare V (programming language) to WhiteKit.dev or Crystal (programming language):