RunComfy

RunComfy is a cloud ComfyUI platform to run workflows in the browser without local setup, auto-install missing models and custom nodes, and deploy saved workflows as serverless APIs.

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Cloud ComfyUI for running and deploying workflows

RunComfy is a cloud ComfyUI platform for running stable-diffusion-style workflows without local installation. It focuses on giving creators and developers a ready-to-use browser environment, plus a consistent way to save, share, and deploy workflows.

The site emphasizes native ComfyUI, automatic setup for missing models and custom nodes, and reusable workflow environments. It also offers pay-as-you-go GPU usage, optional Pro pricing with discounted rates, and serverless API deployment for saved workflows.

Core capabilities

Browser-based ComfyUI

RunComfy provides a native ComfyUI cloud environment so users can work in the browser without local installation or manual setup.

Auto setup for workflow imports

Uploading a workflow JSON can trigger automatic installation of missing models and custom nodes, reducing the red-node and import-failed errors common with downloaded workflows.

Pre-set workflow templates

Users can browse 200+ ready-to-run ComfyUI templates, including image, video, voice, 3D, and multimodal workflows.

Model downloads and persistence

RunComfy supports downloadable models from sources such as Civitai, Hugging Face, and Google Drive, and it keeps models persisted across sessions.

Workflow-to-API deployment

Any saved workflow can be turned into a serverless API endpoint, making the same ComfyUI setup usable from apps and scripts.

Tiered GPU options

The platform offers multiple GPU machine sizes, with VRAM options from 16 GB up to 141 GB, plus separate training-oriented GPU pricing for longer jobs.

Practical ways to use RunComfy

Run downloaded ComfyUI workflows
Open a workflow JSON from another source and let RunComfy install missing models and custom nodes so it can run in a clean cloud session.
Use preset workflows as a starting point
Start from one of the platform’s ready-to-run templates when you want to generate images, video, voice, 3D, or multimodal outputs without building a graph from scratch.
Reuse a reproducible workflow environment
Save a working ComfyUI setup and reopen it later with the same workflow graph, models, custom nodes, and environment preserved.
Deploy workflows behind an API
Turn a saved workflow into a serverless endpoint when you want to call ComfyUI from another app or script.
Run larger jobs on cloud GPUs
Choose larger GPU instances for heavier workflows or long-running training jobs that need more VRAM and dedicated compute.

Pros and Cons

Pros

Runs ComfyUI in the cloud with no local install required.
Auto-installs missing models and custom nodes from uploaded workflow JSON files.
Offers ready-to-run templates and reproducible saved environments.
Supports serverless API deployment from the same saved workflow.
Provides multiple GPU sizes and an optional Pro tier with discounted rates.

Cons

Pricing is usage-based, so costs depend on GPU hours, generations, and training time.
The product is centered on ComfyUI workflows, so it is best suited to users who want that node-based environment rather than a different UI.

FAQ

Do I need to install ComfyUI locally to use RunComfy?

RunComfy provides a cloud ComfyUI environment, so you can start a workflow in the browser without installing ComfyUI locally. The site also says it can auto-install missing models and custom nodes from a workflow JSON.

Can I deploy a ComfyUI workflow as an API?

Yes. The pricing page states that any ComfyUI workflow can be deployed as a serverless API endpoint, and the home page describes one-click deployment from a saved workflow.

How is RunComfy pricing structured?

The pricing page says RunComfy uses a shared balance across Models, ComfyUI, and Trainer. ComfyUI itself is pay-as-you-go, while Pro is optional and adds discounted GPU rates plus extra perks.

Can teams share the same workflow setup?

The home page says saved workflows can be shared with a simple link so another person opens the same environment, including workflow, models, custom nodes, and ComfyUI setup.

What kinds of workflows does RunComfy support?

The site supports the ComfyUI graph and notes workflows can include custom nodes, models, and dependencies. It also describes ready-to-run templates and cloud-saved reproducible environments.

Quick Facts

Category: Cloud ComfyUI platform
Platform: Web app
Primary users: Creators and developers working with ComfyUI
Pricing model: Pay as you go with optional Pro subscription
Source domain: runcomfy.com
Notable workflow: Upload a workflow JSON, auto-setup missing models and nodes, then run in the browser