
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.

NASM
flat assembler
Easy code
Pelles C
JWasm
Yasm is a complete rewrite of the NASM assembler.
Which is more popular?
Based on our record, Yasm seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codeutil.dev | yasm.tortall.net |
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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 Yasm 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 Yasm yet.
Walkthroughs and reviews on video.
No CodeUtil.dev videos yet. You could help us improve this page by suggesting one.
Spelunky Classic! Mod Review- YASM 1.7
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 Yasm.
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 Yasm. 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.
Trust me, at least on Intel, you do not want to write assembly inside your C/C++ code, unless it's just a couple of lines. The usual AT&T syntax will drive you nuts, and the additional syntax for embedding assembly only adds to the... - Source: Hacker News / almost 3 years ago
Things like yasm only have tasm support...not sure if that will be enough in your case. Source: over 4 years ago
Can also recommend the rewrite of NASM, YASM. https://yasm.tortall.net/. - Source: Hacker News / almost 5 years ago
When comparing CodeUtil.dev and Yasm, you can also consider the following products.


The Netwide Assembler, NASM, is an 80x86 and x86-64 assembler designed for portability and...
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A collection of converters, formaters, encoders, generators and other tools for your Windows desktop.
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A fast and efficient self-assembling x86 assembler for DOS, Windows and Linux.
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Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.
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Easy Code is the visual assembly programming environment made to build 32-bit Windows applications.
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