Compare software

Squeak vs Factor: catalog facts
Squeak	Factor
Best for: Learning Smalltalk, live programming and teaching programming ideas	Best for: Programmers curious about concatenative languages who want a practical, documented system
Free Free and open source.	Free Free and open source under the BSD 2-Clause licence.
Windows, macOS, Linux	Windows, macOS, Linux
Live environment where code can be changed while it runs Morphic framework for interactive graphical applications All 4 strengths for Squeak Live environment where code can be changed while it runs Morphic framework for interactive graphical applications Builds for Windows, macOS and Linux, including ARM Educational tools and free book Squeak by Example	Compiled implementation with interactive development Extensive documentation and a full standard library All 4 strengths for Factor Compiled implementation with interactive development Extensive documentation and a full standard library Deploys stand-alone applications Frequent development builds
Image-based workflow differs from file-based editors and tools Smaller community than mainstream languages	Stack-based style takes time to learn Small community compared with mainstream languages All 3 limitations for Factor Stack-based style takes time to learn Small community compared with mainstream languages Stable releases are infrequent
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: BSD-2-Clause
No account needed	No account needed
Offline features available	Offline features available
Official website Full listing and sources Sources for Squeak squeak.org Catalog checked October 2, 2026	Official website Full listing and sources Sources for Factor factorcode.org github.com/factor/factor Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.