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Stay Focused
V2 updates! - Custom time interval for distraction free mode - Ability to turn off ' always on' mode - Improved UI -- Self Control -- A simple app to keep you focused online by blocking sites that you spend way too much time on.

OneCompiler
JDoodle
Programiz
IT Tools
CodeBeautify
CyberChef
JSONFormatter.org
Online compilers and developer tools that run in your browser

Which is more popular?
Based on our record, SelfControl seems to be more popular. It has been mentioned 79 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | selfcontrolapp.com | devtoolry.com |
| Pricing | ||
| Platforms | — | |
| Company | — | Startup from India · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of SelfControl yet.
Devtoolry is a free collection of 120+ developer tools that run in the browser. No signup, and almost everything is processed locally, so your code and files stay on your machine. Online compilers: C and C++ (Clang), Go (the real Go toolchain), Python, PHP, Ruby and R, all running client-side via...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
SelfControl is ideal for students who need to concentrate on studying, remote workers who want to avoid procrastination, freelancers who require discipline in managing their time, and anyone who needs a simple solution to reduce digital distractions during focused work periods.
No analysis of Devtoolry yet.
Walkthroughs and reviews on video.
How to block websites that distract you ? Selfcontrol [Mac App review and tutorial]
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SelfControl and Devtoolry.
Devtoolry's answer:
Developers and computer science students who need to quickly run a snippet, format or validate data, compare text or convert files without installing anything, and anyone who prefers that their code and documents stay on their own device.
Devtoolry's answer:
Most online compilers and converters upload your code or files to their servers and often ask you to sign up. Devtoolry processes everything locally in the browser, needs no account, and keeps compilers, JSON and text tools, PDF and image tools, generators and time tools in one consistent interface with dark mode and keyboard-friendly editors.
Devtoolry's answer:
I'm a solo developer from India. I kept switching between a dozen different sites to format JSON, run a quick C program or compress a PDF, and many of them uploaded my files or were full of pop-ups. I built Devtoolry as one clean place for these everyday tasks, with everything running in the browser.
Devtoolry's answer:
Everything runs in your browser. The online compilers don't send code to a server: C and C++ are compiled with Clang to WebAssembly, Go uses the real Go toolchain targeting wasip1, and Python, PHP, Ruby and R run in Web Workers. The same applies to the PDF and image tools, so files are never uploaded. It is also one site with 120+ tools instead of a separate site for each task.
Devtoolry's answer:
Next.js, React, TypeScript and Tailwind CSS, with CodeMirror for the editors. In-browser runtimes: Clang compiled to WebAssembly, the Go toolchain on WASI, Pyodide (Python), php-wasm, ruby.wasm, webR and sql.js, all running in Web Workers. PDF tools use pdf.js, pdf-lib and qpdf compiled to WebAssembly; the background remover runs ONNX models with onnxruntime-web.
Share your experience with using SelfControl and Devtoolry. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


A combination of https://selfcontrolapp.com/ and Hammerspoon automation and you can lock yourself out of pretty much everything. - Source: Hacker News / 8 months ago
Happy to see it still exists, and free https://selfcontrolapp.com/. - Source: Hacker News / 9 months ago
I have found that a useful method for getting distractions off my work laptop has been https://selfcontrolapp.com/ (if you're on mac). - Source: Hacker News / about 1 year ago
Tracking Devtoolry since Oct 2026.
When comparing SelfControl and Devtoolry, 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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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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The website blocker you can't cheat, on Windows, Mac, Linux, Android and iPhone.
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Free e-learning platform for programming beginners.
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