I don use any source control. Does Ohloh support tarballs?
Not directly. Our system does more than analyze a snapshot of the code. We examine the full history of all changes to the code, and attribute each one to an individual contributor. A simple tarball of the source code doesn’t contain this history. All is not lost, however. If you insist on working around this, you could simply push your code into a repository, then upload it to Ohloh. This can be done fairly easily. You could use a free online forge service, or perhaps the easiest workaround is to import the project into a local Git repository and then open access to it so that Ohloh can upload it. You can find Git here.