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FLUX Alternatives in 2026

The best 8 open-source FLUX alternatives in 2026, ranked by GitHub stars. Find free, self-hosted replacements for FLUX.

8 Alternatives
100% Open Source
Free To Self-Host

What are the best FLUX alternatives in 2026?

The best open-source FLUX alternatives in 2026 are Stable Diffusion, Stable Diffusion WebUI, ComfyUI, Fooocus, Diffusers. These tools cover the same use cases as FLUX — state-of-the-art open image generation models by black forest labs — with the advantage of being open-source, free to self-host, and backed by active communities. Top picks are ranked by GitHub stars and community adoption, so you can find a drop-in replacement that fits your workflow.

#1
Stable Diffusion ★ 73k+ Top Pick

Original latent diffusion model for photorealistic image synthesis

image generative model open-sourceCreativeML OpenRAIL-M
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#2
Stable Diffusion WebUI ★ 164k+ Top Pick

Web UI for Stable Diffusion image generation

image generative open-source web-uiAGPL-3.0
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#3
ComfyUI ★ 129k+ Top Pick

Powerful node-based UI for Stable Diffusion

image generative workflow open-sourceGPL-3.0
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#4
Fooocus ★ 53k+

Midjourney-style image generation, offline and open-source

image generative open-source easy-to-useGPL-3.0
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#5
Diffusers ★ 34k+

HuggingFace library for image, audio and video generation

image generative framework open-sourceApache-2.0
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#6
InvokeAI ★ 28k+

Professional creative engine for Stable Diffusion

image generative workflow open-sourceApache-2.0
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#7
SD WebUI Forge ★ 13k+

Optimized SD WebUI fork with faster generation and lower VRAM

image generative performance open-source
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#8
CogVideo ★ 13k+

Open-source video generation model by THUDM

video generative open-source model
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Last updated: Aug 28, 2026 · Curated by AI Tools Hub Editorial · About · Contact · Privacy