
NixOS
Conda
pkgsrc
Portage
Yay
Docker
DPKG (Debian Package Manager)
Like Nix but GNU.

CyberChef
DevToys
CodeTray.dev
CodifyFormatter.org
DevToo.dev
Aptdot Developer Utilities
Lehuoliaoyu ToolHub
Fast, private developer tools in your browser. JSON formatter, Regex tester, Cron generator, and 17 more.

Which is more popular?
Based on our record, GNU Guix seems to be more popular. It has been mentioned 97 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | guix.gnu.org | codeutil.dev |
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In their own words, as submitted to SaaSHub.


No description of GNU Guix yet.
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,...
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
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
My crush on GNU Guix
More videos
No CodeUtil.dev videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing GNU Guix and CodeUtil.dev.
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 GNU Guix and CodeUtil.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Https://guix.gnu.org/ might fix the language by replacing it with a real one. - Source: Hacker News / 12 days ago
I'm a NixOS user and I know Gobolinux is a few years older, this blogpost (from 2011) was actually useful for me at the time when I decided to pick NixOS for my workstations:... - Source: Hacker News / 7 months ago
> I started because I wanted Claude Code to manage my system, not just my code. I have two reactions to this. First: respectfully, this is hilarious. LLMs are good at many things, but judgement is not one of them. At the outset, this... - Source: Hacker News / 8 months ago
Tracking CodeUtil.dev since Mar 2026.
When comparing GNU Guix and CodeUtil.dev, you can also consider the following products.

25 Jun 2014 . All software components in NixOS are installed using the Nix package manager. Packages in Nix are defined using the nix language to create nix expressions.
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Binary package manager with support for environments.
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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pkgsrc is a framework for building over 17,000 open source software packages.
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Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.
Compare CodeTray.dev to GNU Guix or CodeUtil.dev: