Best TopOpt Alternatives in 2026

Updated October 2026

19 apps from generative design software ranked against TopOpt on the same published basis.

TopOpt alternatives compared

#	App	Score	Free plan	From	Runs on
2	Avocado	6.5	Free plan	Free	Android, Linux, Mac, Windows
3	Dakota	6.5	Free plan	Free	Linux, Mac, Windows
4	OpenMDAO	6.3	Free plan	Free	Linux, self-hosted
5	Plato	6.3	Free plan	Free	Linux
6	ARL Topologies	6.2	Free plan	Free	self-hosted
7	NETVIBES	5.6	No	—	Android, iOS, self-hosted, Web
8	Ansys optiSLang	5.5	No	—	Linux, self-hosted, Web, Windows
9	FEniTop	5.5	No	—	Linux, self-hosted, Windows
10	OpenPISCO	5.5	No	—	API, Linux, Mac, Windows
11	modeFRONTIER	5.4	No	—	API, Linux, self-hosted, Windows
12	nTop	5.3	No	—	Linux, Windows
13	OpenLSTO	5.3	No	—	Windows, Mac, Linux
14	SmartDO	5.3	No	—	API
15	FreeTO	5.2	No	—	—
16	SIMULIA Tosca	5.1	No	—	—
17	Z88Arion	5.1	No	—	Windows
18	CAESES	5.0	No	—	Linux, self-hosted, Windows
19	OrCAD X	5.0	No	—	Web, Windows
20	ICEM Surf	4.8	No	—	Windows

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What is the best alternative to TopOpt?

Avocado, number 2 in generative design software with a score of 6.5 out of 10. The others here: Dakota, OpenMDAO, Plato and 15 more.

What is the best free alternative to TopOpt?

Avocado is the best-ranked alternative with a free plan. 5 of the 19 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.