The 'Video to Seamless Loop Converter' workflow is designed to transform your video clips into seamless, looping videos. This is particularly useful for creating engaging content for social media, digital art installations, or any application where continuous playback is desired. The workflow leverages the Wan2.1 VACE model, which excels in video content analysis and enhancement, ensuring that the transition between the end and the start of the video is smooth and imperceptible.
Technically, the workflow begins with the VHS_LoadVideo node, which imports the video into the system. The video frames are processed using a series of nodes, including ImageBatch and ImageFromBatch, which manage the frame data efficiently. The custom nodes from comfyui-kjnodes and comfyui-videohelpersuite are employed to create and fill empty frames, ensuring a seamless transition. Finally, the CreateVideo and SaveVideo nodes compile the processed frames into a continuous loop, ready for export and use.
API
Use this workflow from code
Every Comfy workflow is a JSON graph. The payload below is this workflow, exactly as ComfyUI runs it — fetch it from the URL, keep it in version control, or load it in ComfyUI and run it node by node.
Run it from TypeScript or Python with the Comfy SDK. The same code targets Comfy Cloud or a ComfyUI you host yourself — only the base URL changes.
// Install (beta)
npm i @comfyorg/sdk
// Run "Video to Seamless Loop Converter" (TypeScript)
import { Comfy } from "@comfyorg/sdk";
const client = new Comfy({ apiKey: "comfyui-..." });
// This workflow, exported in API format (see note below)
const wf = await client.workflows.fromFile("template_sirolim_seamless_loop_api.json");
const job = await client.run(wf);
await job.getOutputs("251")[0].toFile("output.png"); // SaveVideoThe SDK takes a workflow in API format: open this workflow in ComfyUI and use File → Export Workflow (API).
Comfy Cloud API access requires a plan with an API key.
FAQ














