
CyberChef
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.

Opal.so
Freedom.to
Cold Turkey
Forest App
clearspace
LeechBlock
FocusMe
one sec uses Shortcut automation in order to empower you to spend more time in the real world.

Which is more popular?
Based on our record, one sec seems to be more popular. It has been mentioned 44 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codeutil.dev | one-sec.app |
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| Listed in |
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 one sec 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 one sec yet.
Walkthroughs and reviews on video.
No CodeUtil.dev videos yet. You could help us improve this page by suggesting one.
The app that makes Elon Musk cry — One Sec app setup & 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 one sec.
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 one sec. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking CodeUtil.dev since Mar 2026.
I think most users need more screen blocking control than they get out of the box on iOS. Ntools like one sec [1] have been invaluable for me. [1]: https://one-sec.app/. - Source: Hacker News / 9 months ago
One thing that finally worked for me was using: https://one-sec.app/ It basically forces you to do a little breathing exercise before you can visit the site that you have on its block list. It has been life changing. It adds enough... - Source: Hacker News / over 1 year ago
I've tried various forms of this. As long as there's a logged in session somewhere, I have to have various tricks and extensions on my browser to manage things. Most have been only varying degrees of successful, often ending up in me... - Source: Hacker News / almost 2 years ago
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Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
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