Qalculate!
SpeedCrunch
SpeQ Mathematics
NumWorks
Calcbot for Apple Watch
Numi App
Soulver
Do maths like a normal person.

DevTools Advanced
FullStackToolkit
DevFinanceTools
JSON Formatter & Validator
AllDevToolsHub
Boop
DeveloperTools.Tech
120 free browser-based developer utilities. No sign-up required.

Which is more popular?
Based on our record, NaSC 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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NSC
NaSC
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|---|---|---|
| Website | github.com | devtoolstack.io |
| Pricing | — | |
| Listed in |
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 DeveloperToolStack yet.
Walkthroughs and reviews on video.
NASC CFI Review 1
More videos
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How often each product is chosen within a category, 0–100% relative to the other.

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

I'm a huge fan of assistive note pads. I wish the one I use was more stable and supported multiple files and more solvers: https://parnold-x.github.io/nasc/ Hopefully more tools like this and the OP come out. - Source: Hacker News / about 5 years ago
Tracking DeveloperToolStack since Aug 2026.
When comparing NaSC and DeveloperToolStack, you can also consider the following products.

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A collection of developer tools in one place in your browser
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SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
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Free, no-signup developer tools for technical SEO: robots.txt, sitemap.xml and .htaccess generators, plus practical guides. Everything runs in your browser.
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SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
Compare SpeQ Mathematics to NaSC or DeveloperToolStack:

Free, no-signup calculators for the money side of building software and freelancing
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