I need help with a graphic design software to smooth out lines for a shirt design about grimm

[brave silo]

Assuming you made the original art, you could install Ink Scape and try converting your image to an SVG with it.
Depending on the setting you use, you'll get it smoothed, and you can then re-convert to a different format if you need

[quartz heron]

I already have an outline and a sketch I just need help to smoothen the lines (preferably for free)

[lavish heath]

Inkscape is free

[quartz heron]

I know what software I’m using and it’s already free and I have a sketch already done

[brave silo]

You: Literally asks how to do a thing
Others: Tell you a way to do the thing, for free
You: I don't need your info

[quartz heron]

No I know I just

Nvm

[brave silo]

A'ight. Goodluck tho