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Krita AI Diffusion

Open-source Krita plugin that generates, fills, expands and upscales images with AI, on your own GPU or in the cloud.

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Is Krita AI Diffusion free?

Yes, Krita AI Diffusion has a free plan. What you get: Open source (GPL-3.0): free on your own hardware; optional paid cloud tokens. To get it: install Krita 5.2 or newer; then download the latest plugin release and import the ZIP file in Krita; then restart Krita, enable the AI Image Generation docker and click Configure. Verified on interstice.cloud.

Free plan at a glance

Includes
  • Open source (GPL-3.0): free on your own hardware; optional paid cloud tokens

No usage limit when it runs on your own hardware. The optional cloud service starts you with a limited number of free tokens; the amount isn't stated.

Duration
Free forever
Your content
The maker says it isn't used to train AI

How to get it free

Self-host
  1. Install Krita 5.2 or newer
  2. Download the latest plugin release and import the ZIP file in Krita
  3. Restart Krita, enable the AI Image Generation docker and click Configure
  4. Choose Local Managed Server so the plugin installs the backend on your computer

Good to know

  • Local use needs a powerful GPU; CPU works but is very slow
  • AI models need at least 10GB of disk space
  • Cloud images for customers in the EU carry an invisible watermark
Get the free plan

docs.interstice.cloud, Checked Source

Overview

Krita AI Diffusion is an open-source (GPL-3.0) plugin for the Krita painting app that generates and edits images inside your canvas, with ComfyUI as its backend. It is free on your own hardware; an optional cloud service by the same maker needs no GPU and charges for tokens.

Key features

  • Generative fill with selections: expand the image, or add and remove objects
  • Live painting, where the AI interprets your canvas in real time
  • Upscaling to 4k, 8k and beyond without running out of memory
  • Control layers from scribbles, line art, depth maps and pose skeletons
  • Regions that give separate text prompts to areas defined by layers
  • Works with Flux 2, Z-Image, Stable Diffusion 1.5, XL and Illustrious models

Best for

Tasks
Generate images, Edit photos (incl. background removal, upscaling)
People
Digital painters and illustrators who work in Krita, Artists who want selection-based AI edits rather than whole images from a prompt, People with a capable GPU who want to generate images on their own computer

Limitations

  • Local use needs a strong GPU: at least 6 GB VRAM (NVIDIA) is recommended, and CPU is very slow
  • Needs Krita 5.2 or newer installed first
  • Local AI models need at least 10GB of disk space, and 50GB or more is not unusual

Screenshot

Krita AI Diffusion screenshot, as published by Krita AI Diffusion
Image published by Krita AI Diffusion

FAQ

Is Krita AI Diffusion free?
Yes. Krita AI Diffusion has a free plan: Open source (GPL-3.0): free on your own hardware; optional paid cloud tokens. We last checked interstice.cloud's pricing page on 2026-10-24.
What does the Krita AI Diffusion free plan include?
Open source (GPL-3.0): free on your own hardware; optional paid cloud tokens. Source: https://www.interstice.cloud/service (checked 2026-10-24).
How do I get Krita AI Diffusion for free?
Steps: Install Krita 5.2 or newer; Download the latest plugin release and import the ZIP file in Krita; Restart Krita, enable the AI Image Generation docker and click Configure; Choose Local Managed Server so the plugin installs the backend on your computer. Start at https://docs.interstice.cloud/installation/ (checked 2026-10-24).
Do I need an account to use Krita AI Diffusion for free?
Not for the free option: the free route is to self-host Krita AI Diffusion (Install Krita 5.2 or newer). Checked 2026-10-24.
What's the catch with Krita AI Diffusion's free plan?
Local use needs a powerful GPU; CPU works but is very slow. AI models need at least 10GB of disk space. Checked 2026-10-24.
What are free alternatives to Krita AI Diffusion?
Upscale.media, Clipdrop and Upscayl all have free plans. We checked their free offers on 2026-10-25.
What computer do I need to run it locally?
The maker recommends an NVIDIA graphics card with at least 6 GB VRAM. AMD (ROCm), Intel (XPU) and Apple Silicon (macOS 14+) are supported; CPU works but is very slow.Source: github.com/Acly/krita-ai-diffusion
How does the cloud service charge?
You start with a limited number of free tokens, then buy token packs as one-time payments. Tokens don't expire, and an image at 1024x1024 resolution costs 5 tokens.Source: interstice.cloud/service
Does the cloud service keep my images?
The maker says input images are used only to generate your results, results are not stored, and you own the images you generate.Source: interstice.cloud/service

Free alternatives

Sources

Free offer
Verified on interstice.cloud
…AI for Krita is an open-source plugin for professional painting app…
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How we check free offers

Added by our team. We check that a free option exists and record the date; signing up is between you and Krita AI Diffusion, so read their privacy policy and terms first.

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