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Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.

X (Twitter)
Facebook
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Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!

Which is more popular?
Based on our record, Mastodon seems to be more popular. It has been mentioned 912 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codeutil.dev | mastodon.social |
| Pricing | — | |
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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 Mastodon 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
No analysis of Mastodon yet.
Walkthroughs and reviews on video.
No CodeUtil.dev videos yet. You could help us improve this page by suggesting one.
Mastodon - Emperor of Sand ALBUM REVIEW
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeUtil.dev and Mastodon.
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.
Share your experience with using CodeUtil.dev and Mastodon. 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 CodeUtil.dev yet. Be the first one to post
They suspended my account without sharing any proper justification.
The social networking sites that will ban your account without mentioning any reason.
Imagine a Twitter fuelled by independent communities, not a tech giant. That's Mastodon. It's not one platform, but a network of servers, each with its own vibe, from artists and journalists to cat lovers and techies....
Recommendations tracked on public social media and blogs since March 2021.


Tracking CodeUtil.dev since Mar 2026.
Opinion from someone who's working on Passkeys at Apple and is very open and transparent about his work there (For many years already), which is rare for someone working at Apple. This makes me appreciate this much more.... - Source: Hacker News / 6 days ago
I like the art and storytelling -- the characters are somewhere between unbearably cute and tough special forces lifestyle. It fits my kemo lifestyle [1] I like the tower defense genre in general, there is a lot of depth to the... - Source: Hacker News / 11 days ago
It amused me because I made the discovery I can shoot candids of people on the street with a 70-200mm towards the wide range shooting "from the hip" [1] without looking at the screen or through the viewfinder. Earlier I found people are... - Source: Hacker News / 23 days ago
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