Last updated 07-28-2026
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ArtBot
ArtBot is a free browser client for image generation with Stable Diffusion through the AI Horde, a distributed network of volunteer GPUs. You open the site, write a prompt, pick from 154 community-hosted models, and get images back without installing software or creating an account. Everything runs in the browser, and your generations stay stored locally in IndexedDB rather than on ArtBot servers.
Most image generation tools either need a local GPU or bill you for cloud compute. ArtBot routes work through AI Horde instead, so you trade hardware costs for queue time. That makes it unusually practical if you want ControlNet, img2img, inpainting, and live paint in one free interface but do not want to run Automatic1111 on your own machine. The trade-off is speed and reliability depend on how many workers are online, not a fixed SLA.
It fits hobbyists experimenting with prompts, artists who want Horde access without juggling CLI tools, and contributors who run GPU workers to earn kudos for faster queue priority. Dave Schumaker built it as an open source side project, and the about page reports more than 40 million images generated through the service.
Access 154 Stable Diffusion models through the AI Horde volunteer GPU cluster with no signup required
Full creation toolkit: txt2img, img2img, inpainting, ControlNet, live paint, and draw modes in one browser app
Attach up to 5 LoRAs per generation with GFPGAN, CodeFormers face fixes, and RealESRGAN upscaling built in
Prompt matrix syntax expands one prompt into many combos, such as {bears|clowns} with {Bob Ross|Thomas Kinkade|Maurice Sendak}
Images save locally in your browser via IndexedDB, not on ArtBot servers
Default 1024x1024 output with configurable steps, guidance, sampler, and CLIP skip controls
Completely free with no account required to start generating images.
154 models spanning anime, realistic, SDXL, and Flux without local GPU hardware.
Full workflow tools including ControlNet, inpainting, and live paint in one browser app.
Open source on GitHub with an active community Discord and issue tracker.
Queue wait times spike for anonymous users when registered users submit jobs.
Browser storage limits can block saves after large galleries, especially on iOS PWAs.
Generation speed and availability depend on volunteer GPU workers, so results vary.
Is ArtBot free to use?
Yes, ArtBot is free to use with no registration required. The homepage states it is free, and the about page notes more than 40 million images have been generated through the service at no cost to users.
Does ArtBot require an account?
No. ArtBot works without creating an account. You can generate images immediately, though an optional AI Horde API key from aihorde.net gives higher queue priority than anonymous users.
How many models does ArtBot support?
ArtBot lists 154 Stable Diffusion models on its model details page, spanning SD 1.5, SDXL, Flux, anime, realistic, and specialty checkpoints hosted by AI Horde workers.
Where does ArtBot store generated images?
ArtBot stores images locally in your browser using IndexedDB and LocalStorage APIs. The about page explains this keeps your generations private on your device rather than on ArtBot servers.
What are kudos on ArtBot?
Kudos are AI Horde queue priority points, not currency. ArtBot FAQ notes they cannot be bought; you earn them by contributing GPU power, rating images, or participating in the Stable Horde Discord community.
Does ArtBot support img2img and inpainting?
Yes. ArtBot includes dedicated img2img and inpainting panels on the create page, plus separate ControlNet, live paint, and draw tools for guided and interactive image workflows.
Is ArtBot open source?
Yes. ArtBot source code is published on GitHub at daveschumaker/artbot-for-stable-diffusion. The about page welcomes feedback and contributions from the community.