Pharo is a clean, innovative, open-source Smalltalk-inspired environment

pure object-oriented language

runs on all major platforms

stable core with large test suite

a clean look and feel

good developer tools

low memory footprint

Download 1.4 (Summer)  for OS X, Linux, Windows

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Pharo's goal is to deliver a clean, innovative, free open-source Smalltalk-inspired environment. By providing a stable and small core system, excellent dev tools, and maintained releases, Pharo is an attractive platform to build and deploy mission critical Smalltalk applications.

The license of Pharo is MIT with some original parts remaining under the Apache License. All contributors are required to sign our license agreement. For more information see the license page.