Best Local AI Image Generator in 2026: 6 Offline Apps Compared

The best local AI image generator depends on two things: how much setup you accept, and which computer you have. ComfyUI is the most powerful. Draw Things has the widest model list on Apple devices. A one-click app gets you to a good image fastest. All of them run offline, keep your prompts and pictures on your own disk, and need no credits.

This guide compares six local AI image generators that are actively used in 2026, and ends with a quick way to choose.

Quick comparison

1. ComfyUI: the most powerful

ComfyUI builds images from a graph of nodes. Almost every new open model gets a ComfyUI workflow first, often on release day, and there are thousands of custom nodes for upscaling, ControlNet, video and more. Comfy Desktop installs on Windows and Apple Silicon Macs.

Good: every model, full control, huge community. Watch out: you manage model files, custom nodes and their versions yourself. Some custom nodes only run on NVIDIA GPUs.

More in our ComfyUI download and Mac guide.

2. Draw Things: the widest model list on Apple

Draw Things is a native app for Mac, iPhone and iPad from the App Store. It runs locally and offline, with an optional paid cloud service for heavier jobs. Its model list is very wide: Stable Diffusion, FLUX, Qwen Image, Z-Image, video models and more, plus LoRA import and on-device training.

Good: native, fast, many models. Watch out: Apple only, and the interface has a lot of settings to learn.

3. Stable Diffusion WebUI Forge: for extensions

Forge is a faster fork of the classic AUTOMATIC1111 WebUI, running in your browser from a local Python install. It is strongest on Windows with an NVIDIA GPU, and it supports the large library of WebUI extensions.

Good: familiar interface, many extensions. Watch out: Python setup, and it is built around NVIDIA. See how to run Stable Diffusion locally.

4. DiffusionBee: the simplest for Stable Diffusion on a Mac

DiffusionBee is a one-click macOS app for the Stable Diffusion family, with inpainting, upscaling and FLUX.1 support on Apple Silicon. It is open source.

Good: very easy to start. Watch out: Mac only, and its public releases center on older model families. Our DiffusionBee and Draw Things guide has the details.

5. mflux: newest models on Apple Silicon, from the terminal

mflux is an open-source MLX implementation of image models for Apple Silicon, including FLUX.2 klein, Z-Image and Qwen Image. MLX uses the Mac's unified memory directly, which makes it fast on M-series chips.

Good: new models, fast on a Mac. Watch out: a command-line tool and Python package, with no graphical interface.

6. TopLocal Studio: good images with no setup

TopLocal Studio is an open-source desktop app for Mac (Apple Silicon) and Windows 10/11, made by us. Its image module runs four current open models, each downloaded inside the app with its license shown first:

• Z-Image-Turbo: the default, about 35 seconds per image on an M5 Pro, with accurate Chinese and English text.
• FLUX.2 klein 4B and 9B: fast generation, and editing a picture from one sentence.
• Qwen-Image 2.1 Turbo: the highest quality, about two minutes per image. See our Qwen-Image 2.1 Turbo test.

On a Mac it runs on MLX; on Windows on stable-diffusion.cpp with Vulkan, so NVIDIA, AMD and Intel GPUs work without CUDA. There is no Python to install, no account and no upload.

Good: the same app on Mac and Windows, newest models, plain-sentence editing. Watch out: a small, chosen model list instead of everything. If you need a specific model or node, use ComfyUI or Draw Things.

How to choose

• You want the most control, or a model released this week: ComfyUI.
• You only use Apple devices and want many models: Draw Things.
• You depend on a WebUI extension and have an NVIDIA GPU: Forge.
• You are on a Mac and live in the terminal: mflux.
• You want good pictures on Mac and Windows without setup: TopLocal Studio.

What hardware do you need?

• Mac: Apple Silicon (M1 or later). 16 GB of memory runs compact models such as Z-Image-Turbo and FLUX.2 klein 4B. 32 GB or more opens up larger models.
• Windows: a GPU with 8 GB of VRAM or more, and a current driver. 12–16 GB is more comfortable for newer models.
• Disk: models are 4–15 GB each, so keep 20–60 GB free.

Memory matters more than the newest chip. A larger model that does not fit will either fail or slow down sharply.

FAQ

What is the best free local AI image generator?

ComfyUI, Draw Things, Forge, DiffusionBee and mflux are all free to download. TopLocal Studio is open source, and its ready-made installers are a one-time purchase.

Can I run an AI image generator offline?

Yes. Every app in this list runs offline after the model is downloaded. Your prompts and images stay on your computer.

What is the best local AI image generator for Mac?

Draw Things for the widest model list, mflux if you like the terminal, and TopLocal Studio for the simplest setup with current models. ComfyUI runs on Apple Silicon too, but some custom nodes need NVIDIA.

What is the best local AI image generator for Windows?

ComfyUI if you want control, Forge if you rely on extensions. TopLocal Studio if you want a simple app that also works on AMD and Intel GPUs.

Is a local AI image generator uncensored?

Local apps add no content filter of their own. What a model can draw depends on its training data. More in our guide to uncensored local image generation.