Our software library provides a free download of ANTLRWorks 2.1 for Mac. Our built-in antivirus scanned this Mac download and rated it as 100% safe. This free Mac application is a product of antlr. The software lies within Developer Tools, more precisely IDE. The latest installer that can be downloaded is 25.8 MB in size.
From the developer:
ANTLRWorks is a novel grammar development environment for ANTLR v3 grammars written by Jean Bovet (with suggested use cases from Terence Parr). It combines an excellent grammar-aware editor with an interpreter for rapid prototyping and a language-agnostic debugger for isolating grammar errors.
You may want to check out more software for Mac, such as TopCoder UML Tool, JIRA Client or ScriptLight, which might be similar to ANTLRWorks.