Alternative
The Best Scilab / Xcos Alternative
Scilab is a capable free, open-source MATLAB alternative, and Xcos mirrors Simulink for block diagrams. Both are genuinely free — but they're desktop installs with an older interface and no ready-made interactive library. PolySim runs in the browser with hundreds of live simulators and an AI copilot.
Why teams switch from Scilab / Xcos
- Desktop install only
- Older user experience
- Smaller ecosystem
What you get with PolySim OS
| Feature | PolySim OS | Scilab / Xcos |
|---|---|---|
| Price | Free locally | Free (open-source) |
| Runs in browser | Yes | No — desktop install |
| Ready-made interactive sims | 390+ | Build in code/Xcos |
| Modern UI + sharing | Yes, shareable links | Dated desktop UI |
| AI copilot | Yes | No |
See PolySim in action
Choose Scilab if you want a free desktop MATLAB clone and scripting; choose PolySim for free browser-native, ready-to-run interactive simulation.
Ready to leave Scilab / Xcos?
Full Multi-Physics Bundle — $49
Every domain node pack plus a large compute allotment.