ComfyOnline

ComfyOnline is a cloud-based platform that allows users to run ComfyUI workflows directly in a web browser without the need for local GPU hardware or complex setup procedures. The service provides a fully managed execution environment where visual node-based pipelines—typically used for image generation, video synthesis, and other AI model inference tasks—can be assembled, tested, and executed remotely. Users can design custom workflows by connecting pre-built nodes from an extensive library, covering models such as Stable Diffusion, Kling, Runway, Luma, Pika, Hailuo, and many others. Each node represents a specific operation like model loading, prompt input, image processing, or output formatting, and the entire graph is processed on powerful cloud GPUs including H100, A100, and RTX 4090 instances. Once a workflow is validated, ComfyOnline enables one-click deployment of that workflow as a REST API endpoint. This API can be integrated into external applications, websites, automation scripts, or mobile backends, allowing developers to call AI inference functions without managing any infrastructure. The generated API supports configurable input parameters (e.g., text prompts, image uploads, control parameters) and returns results in standard formats like JSON or base64-encoded images. This turns ComfyUI workflows into reusable building blocks for AI-powered features such as real-time image generation, batch processing, content creation tools, and interactive demos. The platform handles all dependency management, model caching, version control, and scaling automatically. Users do not need to install Python, Git, CUDA, or any machine learning frameworks—they only interact through the web interface. The environment also offers a workspace where multiple workflows can be sto