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

replit
JDoodle
JSFiddle
CodePen
OnlineGDB
myCompiler
coderpad
Development

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 | one-sec.app | onecompiler.com |
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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.


No analysis of one sec yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
The app that makes Elon Musk cry — One Sec app setup & review
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using one sec and OneCompiler. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


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
Tracking OneCompiler since Jun 2026.
When comparing one sec and OneCompiler, you can also consider the following products.

Real Focus in Real-Time. Measure and improve your focus day by day, on iPhone, iPad and macOS.
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Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
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Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
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JDoodle is a free online compiler app that is serving programming communities to compile and run programs from mobile devices.
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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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Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
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