Is the codeblock free?

Answer 1

From official site
[http://www.codeblocks.org/downloads]

From SourceForge
[https://sourceforge.net/projects/codeblocks/]

From FileHippo
[http://filehippo.com/download_codeblocks/]

Answer 2

What do you mean by codeblock?
If you refer to the IDE Code::Blocks, yes, it is free.