Best Open Source Alternatives to Midjourney

Compare the best free and open-source alternatives to Midjourney — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated August 2026 · 3 alternatives

Midjourney

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Midjourney alternatives compared

Open-source alternatives to Midjourney, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Stable Diffusion WebUI	164,331	AGPL-3.0	LinuxmacOSWindows	Yes	Mar 2026	Visit
ComfyUI	123,128	GPL-3.0	LinuxmacOSWindows	Yes	Aug 2026	Visit
InvokeAI	27,710	MIT	LinuxmacOSWindows	Yes	Aug 2026	Visit