Converting widgets to inputs in ComfyUI

ComfyUI Try it →Watch full video →Sebastian Kamph · Apr 2025

Demo summary

Shows how to convert a node's internal settings (like seed) into an external input pin and connect a 'Primitive' node to control it.

Step-by-step

Right-click a node to access the context menu
Select Convert Widget to Input
Choose the specific setting, such as seed, to convert
Double-click the workspace and search for a Primitive node
Connect the Primitive node output to the newly created input pin

Options

Convert an input back to a widget using the Convert Input to Widget option
Drag a connection wire directly from an input pin to automatically convert it

Tips

Use this method to build simpler workflows where only one setting is visible to the end user
Convert widgets to inputs when building complex workflows that require external data sources

Highlights

“the cool part about this now if you instead of converting you can actually drag straight into one of these and that will convert it automatically”

All demos from “How to use ComfyUI for beginners.”

1:360:57Install custom workflows and missing nodes in ComfyUIThe video demonstrates how to drag and drop a JSON workflow file into ComfyUI and use the Manager to identify and install missing custom nodes.ComfyUI· AI Image Generator
3:020:20Search and install models via Model ManagerA walkthrough of using the ComfyUI Model Manager to search for specific AI models, such as ControlNet, and install them directly.ComfyUI· AI Image Generator
3:281:10Running and managing image generation queuesDemonstration of starting a workflow using the 'Run' button, setting up 'Run Instant' for continuous generation, and using 'Run on Change' to trigger generation upon prompt edits.ComfyUI· AI Image Generator
4:590:55Navigating the ComfyUI workspace and UI settingsShows how to use zoom, fit view, pan modes, and toggle link visibility or themes (light/dark mode) within the ComfyUI interface.ComfyUI· AI Image Generator
11:311:49Adding and connecting nodes in ComfyUIThe video demonstrates adding a 'Load Image' node via the library or right-click menu and connecting it to other nodes like 'Save Image' using spaghetti links.ComfyUI· AI Image Generator
19:431:34Converting widgets to inputs in ComfyUICurrentShows how to convert a node's internal settings (like seed) into an external input pin and connect a 'Primitive' node to control it.ComfyUI· AI Image Generator
22:350:32Generating an image with Flux modelDemonstrates a text-to-image generation using the Flux model in ComfyUI, including prompt entry and resolving connection errors.ComfyUI· Text to Image
25:032:06Managing seeds and randomizationShows the difference between 'Randomize' and 'Fixed' seed settings in the KSampler to either generate new variations or reproduce the same image.ComfyUI· AI Image Generator
32:382:30Image-to-Image generation using DenoiseDemonstrates how the Denoise slider in the KSampler affects the transformation of a source image (cat) into a new subject (dog) based on a prompt.ComfyUI· Image to Image
36:450:34Saving images to specific foldersShows how to use the 'Save Image' node and file path syntax to organize output images into custom subfolders.ComfyUI· AI Image Generator
Watch “How to use ComfyUI for beginners.” →

AI Image Generator

8:418:40Building a ComfyUI workflow from scratchA step-by-step walkthrough of adding nodes (Checkpoint, CLIP Text Encode, KSampler, VAE Decode) and connecting them to build a custom image generation pipeline.AI Search
19:571:09Generating a medieval warrior with batch processingDemonstrates generating multiple images of a medieval warrior by increasing the batch size in the Empty Latent Image node.AI Search
25:330:32Importing workflows from image metadataShows how to drag an existing AI-generated image into the ComfyUI canvas to automatically reconstruct the entire node workflow used to create it.AI Search
58:094:05Controlling character poses with ControlNetDemonstrates using the OpenPose pre-processor and ControlNet Union model to force a generated princess character into a specific pose from a reference image.AI Search
1:360:57Install custom workflows and missing nodes in ComfyUIThe video demonstrates how to drag and drop a JSON workflow file into ComfyUI and use the Manager to identify and install missing custom nodes.Sebastian Kamph
3:020:20Search and install models via Model ManagerA walkthrough of using the ComfyUI Model Manager to search for specific AI models, such as ControlNet, and install them directly.Sebastian Kamph
3:281:10Running and managing image generation queuesDemonstration of starting a workflow using the 'Run' button, setting up 'Run Instant' for continuous generation, and using 'Run on Change' to trigger generation upon prompt edits.Sebastian Kamph
4:590:55Navigating the ComfyUI workspace and UI settingsShows how to use zoom, fit view, pan modes, and toggle link visibility or themes (light/dark mode) within the ComfyUI interface.Sebastian Kamph
11:311:49Adding and connecting nodes in ComfyUIThe video demonstrates adding a 'Load Image' node via the library or right-click menu and connecting it to other nodes like 'Save Image' using spaghetti links.Sebastian Kamph
19:431:34Converting widgets to inputs in ComfyUICurrentShows how to convert a node's internal settings (like seed) into an external input pin and connect a 'Primitive' node to control it.Sebastian Kamph
25:032:06Managing seeds and randomizationShows the difference between 'Randomize' and 'Fixed' seed settings in the KSampler to either generate new variations or reproduce the same image.Sebastian Kamph
36:450:34Saving images to specific foldersShows how to use the 'Save Image' node and file path syntax to organize output images into custom subfolders.Sebastian Kamph