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.

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

Which is more popular?
Website, pricing, platforms and company facts side by side.
|
WTF
WTFPL
|
|
|
|---|---|---|
| Website | wtfpl.net | devfinancetools.com |
| Pricing | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of WTFPL yet.
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...
What each product offers, as listed by its team.

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

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

The Creative Commons is a collection of licenses that allow content creators to adjust the restrictions that they place on their work.
Compare Creative Commons to WTFPL or DevFinanceTools:

Helping you make rational decisions, one calculation at a time.
Compare Omni Calculator to WTFPL or DevFinanceTools:
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 WTFPL or DevFinanceTools:

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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About the Licence
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Should you build an internal tool? Or just buy it?
Compare Build vs. Buy Calculator to WTFPL or DevFinanceTools: