if you want people to do whatever they want, even using the code without crediting you, then maybe the CC0 is a good fit
if you want people to give you credit for using your code, but be otherwise free to do whatever they want, i suggest the MIT license
or if you just hate licenses and want to tell people that they're free to do whatever they want, maybe try the WTFPL license
(i have mostly been using the "The Unlicense" myself, but many people smarter than myself says that the CC0 license makes "The Unlicense" obsolete, and CC0 should always be used instead of Unlicense, but idk.)
ILIKEANAL but you should probably add a license,
if you want people to do whatever they want, even using the code without crediting you, then maybe the CC0 is a good fit
if you want people to give you credit for using your code, but be otherwise free to do whatever they want, i suggest the MIT license
or if you just hate licenses and want to tell people that they're free to do whatever they want, maybe try the WTFPL license
(i have mostly been using the "The Unlicense" myself, but many people smarter than myself says that the CC0 license makes "The Unlicense" obsolete, and CC0 should always be used instead of Unlicense, but idk.)