Harbour Compiler
This is the current official Github repo to download the Harbour compiler from.
Viktor Szakats used to be one of the most active core developers of Harbour. This is is read-only repo. It is strongly encouraged that you use the Main Repo, since this one is no longer maintained.

Harbour Info
This is the "Official" web site that explains what Harbour is and who are the main contributors. This site was not maintained for a while.

Learning Harbour
A must read, especially if you are already a developer.
Initial web page will display a list of content describing 4 sections. The first 2 sections are on this linked page. Click the Section 3 and 4 links in the table of content, to read those sections.


Harbour Core Development
Useful information if you want to create C level contribs or add to the harbour compiler.

C (The Language)
Since Harbour generates native C code, and since you can also embed C code directly in your PRGs using #pragma, the following link is a great resource to learn the C language. The entire PDF version book (290 pages) can also be download from this site.

Currently the most active site to communicate with Harbour core contributors.!forum/harbour-users
Currently the most active site to ask questions about Harbour.

Older Reference Material

3rd Party Tools

3rd Party Vendors