Best LTspice Alternatives in 2026
Updated
20 platforms from IDE software ranked against LTspice on the same published basis.
- 1LTspice vs Arm Keil MDK
- 2LTspice vs StackBlitz
- 3LTspice vs Posit Package Manager
- 4LTspice vs Acquia DAM (Widen)
- 5LTspice vs Replit
- 6LTspice vs Visual Studio
- 7LTspice vs Eric
- 8LTspice vs KDevelop
- 9LTspice vs Apache NetBeans
- 10LTspice vs AWS Cloud9
- 11LTspice vs BlueJ
- 12LTspice vs C2000Ware
- 13LTspice vs CLion
- 14LTspice vs CodeLite
- 15LTspice vs CS+
- 16LTspice vs e² studio
- 17LTspice vs Eclipse IDE
- 18LTspice vs Geany
- 19LTspice vs IAR Embedded Workbench
- 20LTspice vs IntelliJ IDEA
LTspice alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Arm Keil MDK | 7.3 | Free plan | $99/mo | API, Browser, Linux, Mac, Web, Windows |
| 2 | StackBlitz | 7.3 | Free plan | Free | API, self-hosted, Web |
| 3 | Posit Package Manager | 6.9 | No | — | API, Linux, self-hosted, Web |
| 4 | Acquia DAM (Widen) | 6.7 | No | — | API |
| 5 | Replit | 6.0 | Free plan | $18/mo | Android, iOS, Linux, Mac, Web, Windows |
| 6 | Visual Studio | 6.0 | Free plan | — | Windows |
| 7 | Eric | 5.9 | Free plan | Free | Linux, Mac, Windows |
| 8 | KDevelop | 5.9 | Free plan | Free | Linux, Mac, Windows |
| 9 | Apache NetBeans | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 10 | AWS Cloud9 | 5.8 | Free plan | Free | Linux, Web |
| 11 | BlueJ | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 12 | C2000Ware | 5.8 | Free plan | Free | Linux, Mac, Web, Windows |
| 13 | CLion | 5.8 | Free plan | $10.90/mo | Linux, Mac, Windows |
| 14 | CodeLite | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 15 | CS+ | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 16 | e² studio | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 17 | Eclipse IDE | 5.8 | Free plan | Free | Browser, Linux, Mac, Windows |
| 18 | Geany | 5.8 | Free plan | Free | Linux, Mac, Windows |
| 19 | IAR Embedded Workbench | 5.8 | No | — | Browser, Linux, Windows |
| 20 | IntelliJ IDEA | 5.8 | Free plan | $8.33/mo | Linux, Mac, Windows |
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Questions about LTspice alternatives
What is the best alternative to LTspice?
Arm Keil MDK, number 1 in IDE software with a score of 7.3 out of 10. The others here: StackBlitz, Posit Package Manager, Acquia DAM (Widen) and 16 more.
What is the best free alternative to LTspice?
Arm Keil MDK is the best-ranked alternative with a free plan. 17 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.