Best AI canvas tools in 2026

An AI canvas is a visual workspace where you place prompts, images, models and edits on a surface and connect them, instead of working in a chat box. The best one depends on the job. For an open-source canvas that uses your own API keys, runs local models and covers image, video, audio and text, use NodeTool. For deep control over local Stable Diffusion and video graphs, use ComfyUI. For a polished hosted canvas with a curated model list, use Flora or Figma Weave. For real-time image generation as you sketch, use Krea. If you work in Adobe's products, use Firefly Boards.

We make NodeTool, so read this with that in mind. Every competitor fact below comes from the comparison pages we maintain for each product, such as the ComfyUI comparison. Where another tool is the better choice, we say so.

What to compare

Five questions separate these tools more than any feature list:

1. Who picks the models? A curated list is simpler. Your own provider accounts give you every model, including the one released this week.
2. How do you pay? Credits bundle model cost into the product's own currency. Your own keys mean the provider bills you at list price.
3. Where does the work live? A hosted canvas keeps it on the vendor's servers. A desktop or self-hosted one keeps it on yours.
4. What can you do after the render? Masks, inpainting, layers and a timeline decide whether the canvas is where the work finishes or where it starts.
5. Can you run it again? A one-off board and a workflow you can rerun on new inputs, from a CLI or an API, are different products.

The seven tools at a glance

NodeTool

Best for: repeatable pipelines across image, video, audio and text, on your own keys.

NodeTool is an open-source workspace under AGPL-3.0. Studio is free and runs on macOS, Windows and Linux. You connect provider accounts such as fal, Replicate, kie, OpenAI, Google and ElevenLabs, and every node calls the provider directly at its list price. NodeTool issues no credits and adds no markup (pricing). Local models run through Ollama, MLX and llama.cpp.

The canvas is one editor among several in a project. A storyboard holds shots and a cast of reusable characters and props. A sketch editor holds layers, masks and generated layers. A script editor voices lines. A multi-track timeline cuts the result, and its clips can stay bound to the workflow that made them, so changing a parameter regenerates that clip. An agent builds and edits all of these: describe the pipeline and it wires the graph, picks models and validates it before it runs.

A finished graph is a workflow you can run again from the CLI, call over the API or an MCP server, or wrap in a mini app with a Run button for a teammate.

Where it falls short: NodeTool is built for batch and workflow work, not real-time generation under your cursor. The canvas trades some of a hosted tool's first-run polish for depth, and Cloud is still in alpha.

ComfyUI

Best for: fine-grained control over local image and video generation graphs.

ComfyUI is an open-source node editor focused on generation pipelines: samplers, VAEs, ControlNets and the hundreds of community custom nodes around them. It runs as a local web interface, with Comfy Cloud as the hosted option. If you want to tune a Stable Diffusion or video graph at the level of individual model components on your own GPU, it is the reference tool.

Where it falls short: shared graphs can need matching models and custom nodes on another machine, and third-party custom nodes vary in quality and can conflict across versions. Editing, storyboards and timelines are outside its scope. Our ComfyUI comparison covers the trade in detail, and NodeTool vs ComfyUI vs n8n vs Flowise puts it next to workflow-automation tools.

Figma Weave (formerly Weavy)

Best for: teams already on Figma who want a hosted node canvas.

Weavy became Figma Weave after Figma's October 2025 acquisition. It is a polished hosted canvas with a curated list of frontier models, billed in Figma Weave AI credits, with a free tier.

Where it falls short: it is closed source and browser-only, with no self-hosting, no desktop app and no local models. The model list and the credit pricing are Figma's to change. See Figma Weave alternative.

Flora

Best for: a fast, well-designed hosted canvas for image and video.

Flora's onboarding and canvas are carefully designed, and for a quick hosted image or video it is quick to reach for. It covers image and video with a curated model selection.

Where it falls short: it is closed and credit-metered, each render spends credits, and the work lives on Flora's platform. There is no self-hosting and no local model support. See Flora alternative.

Krea

Best for: real-time image generation while you sketch.

Krea's real-time canvas is the standout here: type or sketch and the image resolves as you go, then enhance and upscale. Nothing to install. If a fast, interactive single image is the job, Krea is hard to beat.

Where it falls short: it is hosted and closed, billed as a subscription plus credits, with a curated model list. Editing centres on enhance and upscale rather than masks, inpainting and layers. See Krea alternative.

Adobe Firefly Boards

Best for: teams already working in Adobe's creative products.

Firefly combines image, video and audio generation with Adobe and partner models, Firefly Boards for collaborative ideation, and an AI Assistant. Its connection to Adobe's editing products is the main reason to choose it.

Where it falls short: it is a hosted suite with plan-based generative allowances. You cannot self-host it or bring your own provider accounts. See Adobe Firefly alternative.

Leonardo

Best for: a hosted creation platform with a real-time canvas and model training.

Leonardo combines image and video generation with editing, upscaling, a Realtime Canvas and custom-model training, with individual, team and API plans.

Where it falls short: billing runs through plan allowances, with API access as a separate offering, and the platform is hosted only. See Leonardo AI alternative.

How to choose

The tools at the top of the table are faster for a single image. The tools at the bottom are better once the same job comes back with new inputs, such as forty product shots, a weekly social batch, or a trailer per episode.

What a model actually costs on each

On a credit-billed canvas, the price of a render is the product's own credit price, set by the vendor. On NodeTool it is the provider's list price. For example, Ideogram v3 is $0.03 per image on fal and Kling O3 Pro edits are $0.14 per second. See AI image generation cost and AI video generation cost for the full tables. Compare them with the credit price of the same model on the canvas you are considering.