
SwarmUI
Free, open-source web interface for generating images and video with AI models on your own computer.
AI Image GenerationFreeverified Listed on Open source
Is SwarmUI free?
Yes, SwarmUI has a free plan. What you get: Open source (MIT): 100% free to run on your own computer, no paid tier. Watch out: on Windows 10 you may need to install git and the .NET 8 SDK yourself first. No usage limit: 100% free and open source, with no paid tier. Verified on github.com.
Free plan at a glance
- Includes
- Open source (MIT): 100% free to run on your own computer, no paid tier
No usage limit: 100% free and open source, with no paid tier.
- Duration
- Free forever
- Your content
- The maker says it isn't used to train AI
How to get it free
Self-host- Download the installer for your system (Install-Windows.bat on Windows, install-linux.sh on Linux, or clone the repository on a Mac)
- Run it; it installs itself and opens the install page in your browser
- Follow the install instructions on the page and wait while it downloads models
Good to know
- On Windows 10 you may need to install git and the .NET 8 SDK yourself first
- The Windows installer sometimes needs to run twice
github.com, Checked Source
Overview
SwarmUI (formerly StableSwarmUI) is an MIT-licensed web interface for image models such as Stable Diffusion and Flux, video models such as Wan and LTX-2, and some audio models. It runs locally on Windows, Linux and M-series Macs, and the maker says it collects no data.
Key features
- Generate tab for beginners, with an image editor and automatic workflow generation
- Comfy Workflow tab that gives advanced users the raw node graph
- Image models such as Stable Diffusion and Flux, and video models such as Wan and LTX-2
- Grid Generator for comparing settings across many images
- Install scripts for Windows, Linux and macOS, plus Docker
Best for
- Tasks
- Generate images
- People
- Beginners who want a simple Generate tab for local image AI, Advanced users who also want ComfyUI-style node workflows, People who want image and video generation that stays on their own computer
Limitations
- Needs a modern GPU: Nvidia RTX 30xx or newer is recommended, and others may work but are limited
- On a Mac it runs only on M-series Apple silicon
- Still a Beta (v0.9.8): LLM-assisted prompting isn't built in yet
Screenshot
FAQ
- Is SwarmUI free?
- Yes. SwarmUI has a free plan: Open source (MIT): 100% free to run on your own computer, no paid tier. We last checked github.com's pricing page on 2026-10-24.
- What does the SwarmUI free plan include?
- Open source (MIT): 100% free to run on your own computer, no paid tier. Source: https://github.com/mcmonkeyprojects/SwarmUI (checked 2026-10-24).
- How do I get SwarmUI for free?
- Steps: Download the installer for your system (Install-Windows.bat on Windows, install-linux.sh on Linux, or clone the repository on a Mac); Run it; it installs itself and opens the install page in your browser; Follow the install instructions on the page and wait while it downloads models. Start at https://github.com/mcmonkeyprojects/SwarmUI (checked 2026-10-24).
- Do I need an account to use SwarmUI for free?
- Not for the free option: the free route is to self-host SwarmUI (Download the installer for your system (Install-Windows.bat on Windows, install-linux.sh on Linux, or clone the repository on a Mac)). Checked 2026-10-24.
- What's the catch with SwarmUI's free plan?
- On Windows 10 you may need to install git and the .NET 8 SDK yourself first. The Windows installer sometimes needs to run twice. Checked 2026-10-24.
- What are free alternatives to SwarmUI?
- NightCafe, PixAI and Upscale.media all have free plans. We checked their free offers on 2026-10-25.
- Is SwarmUI open source?
- Yes, under the MIT License. The maker says it runs entirely locally on your own computer by default and does not collect any data from you.Source: swarmui.net
- What computer do I need?
- Windows, Linux or an M-series Mac with a modern GPU. The maker recommends an Nvidia RTX 30xx or newer; other GPUs may work but are limited.Source: swarmui.net
- Can I try SwarmUI without installing it?
- You can try it on Google Colab, though Colab may not allow remote web UIs on free accounts, or rent a cloud server on Runpod or Vast.ai using templates.Source: github.com/mcmonkeyprojects/SwarmUI
Free alternatives

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Upscale.media
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Free forever, Free credits for upscaling

Raphael AI
Free AI image generator powered by Flux.
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Compare
- SwarmUI vs ComfyUI · free plans side by side
Sources
- Free offer
- Verified on github.com/mcmonkeyprojects/SwarmUI
…is 100% free and open source…
- Page content
Checked against
Added by our team. We check that a free option exists and record the date; signing up is between you and SwarmUI, so read their privacy policy and terms first.
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