Best Cosmic Client Alternatives in 2026
Updated
20 platforms from Minecraft launchers ranked against Cosmic Client on the same published basis.
- 1Cosmic Client vs Modrinth
- 2Cosmic Client vs Prism Launcher
- 3Cosmic Client vs Refract
- 4Cosmic Client vs Spectra Launcher
- 5Cosmic Client vs X Minecraft Launcher
- 6Cosmic Client vs GDLauncher
- 7Cosmic Client vs LabyMod
- 8Cosmic Client vs ATLauncher
- 9Cosmic Client vs Thendrask Launcher
- 10Cosmic Client vs Cactus MC Launcher
- 11Cosmic Client vs Histolauncher
- 12Cosmic Client vs Onyx Launcher
- 13Cosmic Client vs Vermeil
- 14Cosmic Client vs FTB App
- 15Cosmic Client vs Fjord Launcher
- 16Cosmic Client vs EX Launcher
- 17Cosmic Client vs MultiMC
- 18Cosmic Client vs Emerald
- 19Cosmic Client vs OpenJar Launcher
- 20Cosmic Client vs PolyMC
Cosmic Client alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Modrinth | 7.7 | Free plan | $4.99/mo | API, Linux, Mac, Web, Windows |
| 2 | Prism Launcher | 7.6 | Free plan | Free | Linux, Mac, Windows |
| 3 | Refract | 7.4 | Free plan | Free | Windows, Mac, Linux |
| 4 | Spectra Launcher | 7.4 | Free plan | Free | Linux, Mac, Windows |
| 5 | X Minecraft Launcher | 7.3 | Free plan | Free | Linux, Mac, Windows |
| 6 | GDLauncher | 7.3 | Free plan | Free | Linux, Mac, Windows |
| 7 | LabyMod | 7.3 | Free plan | Free | Android, iOS, Linux, Mac, Windows |
| 8 | ATLauncher | 7.3 | Free plan | Free | Linux, Mac, Windows |
| 9 | Thendrask Launcher | 7.3 | Free plan | $3/mo | Linux, Mac, Windows |
| 10 | Cactus MC Launcher | 7.2 | Free plan | Free | Linux, Mac, Windows |
| 11 | Histolauncher | 7.0 | Linux, Mac, Windows | ||
| 12 | Onyx Launcher | 7.0 | Free plan | Free | Linux, Windows |
| 13 | Vermeil | 7.0 | Free plan | Free | Linux, Windows |
| 14 | FTB App | 7.0 | Free plan | Free | Linux, Mac, Windows |
| 15 | Fjord Launcher | 7.0 | Free plan | Free | Linux, Mac, Windows |
| 16 | EX Launcher | 6.8 | Free plan | Free | Linux, Mac, Windows |
| 17 | MultiMC | 6.7 | Linux, Mac, Windows | ||
| 18 | Emerald | 6.6 | Linux, Mac, Windows | ||
| 19 | OpenJar Launcher | 6.5 | Windows, Mac, Linux | ||
| 20 | PolyMC | 6.5 | Free plan | Free | Linux, Mac, Windows |
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Questions about Cosmic Client alternatives
What is the best alternative to Cosmic Client?
Modrinth, number 1 in Minecraft launchers with a score of 7.7 out of 10. The others here: Prism Launcher, Refract, Spectra Launcher and 16 more.
What is the best free alternative to Cosmic Client?
Modrinth is the best-ranked alternative with a free plan. 16 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.