TS4 Skin Converter, version 1.2, 7/8/2019 - NOW OBSOLETE

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Uploaded: 3rd Jul 2019 at 11:15 PM
Updated: 9th Dec 2020 at 10:40 PM
As of the December 2020 patch this tool is obsolete and skintones converted with it will not show up in CAS. Please use the new version uploaded separately.

With the 'Island Living' patch EA introduced tanning and burning, but older versions of skintones don't support the extra textures needed. This tool will convert a package of CC or cloned skintones by upgrading the version and adding the tan and burn textures by modifying the colors in the base skin texture.


Do NOT save the converted package over the original; that will corrupt the package and you'll end up with an unusable file! Give it a new name or save it in a different location.

The program makes fairly accurate textures for natural skin colors and makes its best guess at tan and burn colors for fantasy skins.

It uses the swatch color to judge how light/dark the skin is and decide which color(s) are dominant for fantasy skins, so an accurate swatch is important.

For some custom skintones, conversion may improve or correct ugly spotchiness, especially in dark skin colors, that appeared after the IL patch.

I've uploaded only a 64-bit version which requires .NET 4 or higher. I can upload a 32-bit version but since this program has to process large uncompressed textures I ran into 'out of memory' problems using 32-bit.

If there are more than a few skintones in the package it'll take a seriously long time to compress the files and save after converting. Your system may report the process as not responding but it should complete eventually. If this is a significant problem I'll add threading although that's not going to make it any faster.

This is still beta-ish so keep copies of your original skintone packages and please report errors.

Unzip and run TS4SkinConverter.exe.

Windows only, sorry.

Additional Credits:
s4pi library for package and image handling.
Download: https://github.com/s4ptacle/Sims4Tools/releases/
Source: https://github.com/s4ptacle/Sims4Tools/tree/develop


Version 1.2, 7/8/2019
  • Now offers several options for handling overlays. I find the 'Fix for light colors, delete for dark colors' to work well but it depends on personal taste and of course on whether the package has overlays causing problems in the first place.
  • The package saving step is now in a background thread to prevent the process from being reported as unresponsive.
  • A few bug fixes.

Version 1.1, 7/5/2019:
  • I found both burn masks and skintone overlays caused ugly blend splotches in the darker skin tones. My attempt to desaturate the overlays either didn't work completely or color wasn't really the problem. So, the new version removes all custom overlays and only adds a burn mask to the lighter tones. Hopefully this will resolve the splotching problem while leaving skintones looking almost the same. Once the new version of Skininator is released custom skin creators can experiment with adding new overlays.
  • The option to add a burn mask to darker tones is gone.
  • I've changed the defaults for the options.
There's still some pixellation at the tan line edges in very dark skin colors, but I don't think it's much if at all worse than in EA skins.