
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.

Ghost
Medium
Buttondown
beehiiv
WordPress
MailChimp
Notocat
With Substack, anyone can start a publication that combines a personal website, blog, and email newsletter or podcast. It's quick and simple.

Which is more popular?
Based on our record, Substack seems to be more popular. It has been mentioned 109 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | whitekit.dev | substack.com |
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| Company | — | Startup from the United States |
| Listed in |
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 Substack 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
Walkthroughs and reviews on video.
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Monetizing Podcasts and Newsletters - Chris Best of Substack and Jonathan Gill of Backtracks
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using WhiteKit.dev and Substack. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of WhiteKit.dev yet. Be the first one to post
Substack offers writers of all experience levels the ability to write an email newsletter that’s profitable through subscriptions. Substack provides purpose-built web and newsletter publishing tools to enable writers...
What sеts Substack apart is its sеamlеss intеgration of contеnt crеation and subscription-basеd monеtization. Substack’s usеr-friеndly intеrfacе, distribution tools, and support for various contеnt formats make it a...
Substack and Medium differ primarily in their monetization methods. Medium pays creators based on reader engagement, while Substack enables writers to monetize directly through paid subscriptions to their newsletters....
Recommendations tracked on public social media and blogs since March 2021.


Tracking WhiteKit.dev since Aug 2026.
Https://substack.com/@rubenafo/note/c-332218129?r=26y5kn&utm_source=notes-share-action&utm_medium=web. - Source: Hacker News / 10 days ago
Https://substack.com/@gurwinder/posts. - Source: Hacker News / 14 days ago
Substack: https://substack.com/@friedkielbasa. - Source: Hacker News / 17 days ago
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Ghost is a fully open source, adaptable platform for building and running a modern online publication. We power blogs, magazines and journalists from Zappos to Sky News.
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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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Welcome to Medium, a place to read, write, and interact with the stories that matter most to you.
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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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Buttondown is the best way to start and run your newsletter
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