IDE online C code example
Example 1: online c compiler
I Personally Like
https://www.programiz.com/c-programming/online-compiler/
Example 2: online c compiler
You can try https://www.onlinegdb.com/ this as well, works really well for me.
You can also save code there.
Example 3: c compiler online
i reccomend online gdb https://www.onlinegdb.com/online_c_compiler