
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

Tailwind CSS
Windows95
Virtual Windows 98
Vast.ai
Geo Bootstrap
UI Movement
Neumorphism UI
A design system for building faithful recreations of old UIs

Which is more popular?
Based on our record, 98.css seems to be more popular. It has been mentioned 21 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devfinancetools.com | jdan.github.io |
| Pricing | ||
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
No description of 98.css yet.
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 DevFinanceTools and 98.css. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevFinanceTools since Aug 2026.
Wow it’s aggressively vibe coded. Nothing inherently wrong with that, but it looks a bit amateurish which is funny. I’m still waiting on 98.css to become the standard for vibe coded sites. You don’t have to read docs anyway if you’re... - Source: Hacker News / about 2 months ago
There's an entire lightweight CSS lib around the Win9x look as well: https://jdan.github.io/98.css/. - Source: Hacker News / 4 months ago
Nothing screams old school more than 98.css https://jdan.github.io/98.css/. - Source: Hacker News / 6 months ago
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Should you build an internal tool? Or just buy it?
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Use Windows 98 in your browser
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