
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
Creative Commons
GNU General Public License
Mozilla Public License
License-Token.com
The WTFPL is a very permissive license for software and other scientific or artistic works that offers a great degree of freedom. In fact, it is probably the best license out there.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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WTF
WTFPL
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|---|---|---|
| Website | devfinancetools.com | wtfpl.net |
| 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 WTFPL yet.
What each product offers, as listed by its team.

No features have been listed yet.
Walkthroughs and reviews on video.
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Software Engineering: What's the difference between WTFPL, CC0, and public domain? (2 Solutions!!)
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using DevFinanceTools and WTFPL. For example, how are they different and which one is better?
When comparing DevFinanceTools and WTFPL, you can also consider the following products.

Helping you make rational decisions, one calculation at a time.
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The Creative Commons is a collection of licenses that allow content creators to adjust the restrictions that they place on their work.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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The GNU General Public License (GNU GPL or GPL) is the most widely used free software license, which guarantees end users (individuals, organizations, companies) the freedoms to use, study, share (copy), and modify the software.
Compare GNU General Public License to DevFinanceTools or WTFPL:

Should you build an internal tool? Or just buy it?
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About the Licence
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