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

JSFiddle
CodeSandbox
GitHub
replit
VS Code
Pastebin.com
JS Bin
A front end web development playground.

Which is more popular?
Based on our record, CodePen seems to be a lot more popular than one sec. While we know about 513 links to CodePen, we've tracked only 44 mentions of one sec.
Website, pricing, platforms and company facts side by side.
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| Website | one-sec.app | codepen.io |
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What each product offers, as listed by its team.


Possible disadvantages
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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 CodePen. 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 one sec yet. Be the first one to post
Codepen is a social network for developers to show off their work, ask and answer questions, and exchange ideas. It's like a Reddit for coding and design, with a large community of talented web developers.
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepen’s focus on visual and interactive development...
Codepen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn.
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 / 8 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 / about 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 / over 1 year ago
> I vividly remember IE and many hacks to have css elements properly working in it… The common advice now is to only use CSS that is supported in the last two major versions of each major browser. You can check any css property's support... - Source: Hacker News / about 1 month ago
Thank you, heartfelt... For sharing an artwork, a miracle! Just in case, have you considered publishing the work at platforms as CodePen, where genius Artists/People express their art, too, as you?: // https://codepen.io/. - Source: Hacker News / 2 months ago
Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 11 months ago
When comparing one sec and CodePen, you can also consider the following products.

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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Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
Compare Freedom.to to one sec or CodePen:


LeechBlock is an extension for Firefox and Chrome that allows users to block time-wasting sites.
Compare LeechBlock to one sec or CodePen:

Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
Compare GitHub to one sec or CodePen: