Are the Tools on About Patsy Free to Use and Modify?

Updated

Yes. According to the site's own statement, "Unless otherwise noted, all code is released under an MIT license," with the full text available in license.txt. That means the tools are free to use, modify, and redistribute, provided you keep the license notice. The site shows no pricing signals beyond a PayPal link, so the tools appear free to access, though the site never explicitly says so.

What the MIT License Allows

The MIT license is a permissive open-source license. In general terms, it permits you to:

  • Use the code for any purpose, including commercial projects
  • Modify the code to suit your needs
  • Redistribute copies or your modified versions
  • Sublicense the code as part of a larger work

The main condition is that the copyright notice and permission notice must be included in all copies or substantial portions of the software. The software is provided "as is," without warranty.

For the exact terms that govern these specific tools, read license.txt on the site — that file is the authoritative source, and the "unless otherwise noted" qualifier means individual projects could carry different terms.

Which Tools Are Covered

The site lists these projects, all falling under the same general license statement:

Category Tools
Kittens Game Save decoder, Save Editor utilities (public repo), Catnip Calculator, Unicorns Calculator, Energy Calculator, Max Science Calculator
Cookie Clicker Cookies Calculator, Cookies Save Editor, Cookies Buildings Price Calculator

The Save decoder is described as a simple interface for decoding/encoding incremental game saves — specifically saves that use LZString to compress JSON to base64.

Practical Notes Before You Reuse the Code

  • Check per-project notes. The license statement says "unless otherwise noted," so if a specific tool's page or repository carries its own license, that one takes precedence.
  • Keep the notice. If you fork or embed the code, include the MIT copyright and permission notice.
  • Source repositories. The site points to https://bitbucket.org/coderpatsy/ for code, which is where you'd confirm the license file for a given project.
  • No warranty. As with any MIT-licensed code, you take on the risk of using it; there's no support or guarantee implied.

If your goal is simply to use the calculators or the save decoder/editor in a browser, the license question doesn't restrict you — the tools are there to use. If your goal is to reuse or republish the code, the MIT terms above are what you need to follow, with license.txt as the final word.