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DevToys
JSON-Formatter.app
CodeTray.dev
CodifyFormatter.org
Devrian.in
DuskTools.app
Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.

Which is more popular?
Based on our record, W3Schools seems to be more popular. It has been mentioned 187 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codeutil.dev | w3schools.com |
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In their own words, as submitted to SaaSHub.


CodeUtil.dev is a collection of 20+ browser-based developer tools. JSON formatter & validator, regex tester, cron expression generator, Base64 encoder/decoder, JWT debugger, URL parser, hash generator, and more. Everything runs client-side — no data leaves your browser. No sign-up needed,...
No description of W3Schools yet.
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Beginners who are just starting with web development and need easy-to-follow tutorials and quick references.
Walkthroughs and reviews on video.
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W3Schools is just... Better
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeUtil.dev and W3Schools.
CodeUtil.dev's answer
CodeUtil.dev runs entirely in the browser — all processing happens on your device, so your data never touches a server. It bundles 20+ tools (JSON, regex, Base64, JWT, cron, hashing, and more) under one roof with zero sign-up. Just open the page and start working.
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External articles and on-site reviews we used to compare the two products.


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Simple and Modest approach articles are better prepared for young learners.
W3Schools, as one of the best alternatives to LeetCode, claims to be the world's largest web developer site. It's a simple and no-frills tool to learn web development skills including Python and SQL. Their methods and...
Recommendations tracked on public social media and blogs since March 2021.


Tracking CodeUtil.dev since Mar 2026.
I myself, in 2009, started my Bachelor of Science degree at the University of Northumbria (in Newcastle-upon-Tyne, United Kingdom) in Web Design & Development. On this degree program we learned how to create websites (both static and... - Source: dev.to / over 1 year ago
W3schools W3schools is a classic resource for learning web development. With its extensive tutorials and references on HTML, CSS, JavaScript, and more, it's a go-to destination for beginners and professionals alike. - Source: dev.to / over 2 years ago
I learned from W3Schools. I know it has a bad rep, but seriously. I was 10 years old and was on this site constantly learning stuff. Worth checking out. They have live code editors that allow you to test/modify code immediately in your... Source: almost 3 years ago
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