NASM
Yasm
Easy code
Pelles C
GNUSim8085
86Box
JWasm
A fast and efficient self-assembling x86 assembler for DOS, Windows and Linux.

CodeTray.dev
DevsBox
DevToolKit.site
FreeToolkit
WebToolKit.tech
Webtools.takendrabam.com.np
29 free browser-based developer tools — JWT, regex, cron, timestamp converters, CSS generators, security checkers, and content generators. No sign-up required.

Which is more popular?
Based on our record, flat assembler seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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flat assembler
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|---|---|---|
| Website | flatassembler.net | samtoolkit.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of flat assembler yet.
SamToolkit is a free collection of 29 small, focused developer utilities across 7 categories — converters, debuggers, generators and reference tools. Everything runs client-side in your browser, so nothing you paste or type is ever sent to a server. There is no account, no sign-up and no paywall,...
What each product offers, as listed by its team.

Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.

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

Oh neat! Thanks for the link, I hadn't heard of fasmg before. It looks like fasmg builds up from the byte level, so it would only work for architectures that use 8-bit words. Torque builds up from the bit level, so it can assemble code... - Source: Hacker News / over 1 year ago
Tracking SamToolkit since Sep 2026.
When comparing flat assembler and SamToolkit, 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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Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.
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Yasm is a complete rewrite of the NASM assembler.
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Developer tools: JSON/JWT/base64, hash, regex tester, UUID, cron, timestamp, color.
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Easy Code is the visual assembly programming environment made to build 32-bit Windows applications.
Compare Easy code to flat assembler or SamToolkit:

19 free browser-based developer tools — no signup, no tracking, everything runs client-side.
Compare DevToolKit.site to flat assembler or SamToolkit: