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GNU Octave vs Scilab: catalog facts
GNU Octave	Scilab
Free Free software under the GNU General Public License.	Free Free and open source.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Runs many Matlab scripts without changes Built-in 2D and 3D plotting	Hundreds of built-in mathematical functions Xcos editor for modelling dynamical systems
Compatibility with Matlab is partial, not complete No equivalent of Matlab's commercial toolboxes beyond community packages	Uses its own language rather than a general-purpose one
Downloadable app	Downloadable app
Open source	Open source
License: GPL	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.