ComfyUI is an open-source program where users can create image prompts and workflows visually using nodes. It leverages models like SD1.5, SDXL, Flux, as the base for image generation. Other tools such as ControlNet and LCM Low-rank adaptation are also included as node options. Each node represents a different tool that can be added to the workflow.
The ComfyUI Manager is a program extension that is meant to improve the ease of use of ComfyUI. It gives users node management capabilities like installing, removing, disabling and enabling different custom nodes. Additionally, it contains hub and convenience features for easily finding and accessing the various types of information available within ComfyUI. This guide will show you what ComfyUI Manager is and how to use it.
How to Use ComfyUI Manager Online Without Installation?
If you want to jump right into editing photos without setting things up, I recommend MimicPC. Local installation of ComfyUI is very troublesome and the success rate is very low. MimicPC has no such issues, as it has ComfyUI built in and ready to use online within its cloud-based solution. There are no hardware compatibility or installation restrictions to worry about.
You don't have to spend time on configuring settings. MimicPC takes care of all that for you behind the scenes. This means you can start fixing and changing your pictures right away instead of dealing with settings first. Let me quickly show you how easy it is to use Comfyui Manager in MimicPC.
Step 1: Log In:
First, log into your MimicPC account. Then find and open the ComfyUI application from the list.
Below click on the “Get Started” button. 
Step 2: Access the Manager:
On the right side of the ComfyUI screen, click the "ComfyUI Manager" button to open the Custom Nodes Manager.
Step 3: Search for Nodes & Install
The install custom nodes function provides considerable value for ComfyUI users. When third party developers create new nodes to expand the program's abilities, individuals need a simple way to access these additions without obstacles.
Clicking this option allows the manager interface to search through available custom nodes. This lets users discover nodes relevant to their interests or projects with just a few keywords. Once the desired extension is found, a single button press downloads and integrates it seamlessly. For example, type "ComfyUI Impact Pack" into the search bar to find it. Once you locate the node you want, click the "Install" button next to it. This installs custom nodes quickly without any coding know-how. The new node will now appear in your panel. Add it to your workspace to try it out in your projects.
Step 4: Install Missing Custom Nodes
When the user imports a JSON file workflow, a red box may appear indicating that one or more nodes are missing. The cause of this is that the imported workflow contains references to custom nodes that have not been installed locally.
The effect is that the workflow will not run properly without the definitions for the missing nodes. By clicking "Install Missing Custom Nodes", it downloads and adds any custom nodes used in the imported workflow that are not already present on the user's system.
Step 5: Install Via Git URL
For further convenience, within ComfyUI Manager, there is a tab for installing nodes using the Git URL if you are unable to find the required node through the default search or one-click installation methods. This provides an alternative way to add missing functionality by directly integrating plugins and customized code from external repositories.
Step 6: Update ComfyUI
It is important to regularly update ComfyUI for new features, improvements and bug fixes. When updating, you can choose to “ Update ComfyUI” without affecting custom nodes. To do this, click on the Manager, and click on “ Update ComfyUI”. This means keeping your existing nodes working while getting ComfyUI updates. You will get the latest usability features and performance boosts. Updates also fix problems and help keep your system more secure.
Also, sometimes you may want to update all nodes together with ComfyUI. In the manager, go to "Update All" and click the button. This updates both ComfyUI and all custom nodes at the same time. Doing this helps everything keep working properly together with the most recent changes.
Step 7: Model Manager Feature
The Model Manager is a handy feature in ComfyUI. It makes exploring and adding new models simple. The Model Manager lets you access these rights in ComfyUI. You can browse options and download what you want in one place. To use it, open the Model Manager panel.
Select the models that interest you for your projects and click “Install”. This expands your creative options by integrating new models seamlessly.
Conclusion
If you want to take your ComfyUI usage to the next level, I highly recommend installing nodes by using ComfyUI Manager. With a ComfyUI Manager, you can install custom nodes and get more flexibility. Furthermore, with MimicPC you don't need to worry about these complicated installation processes. Rather than dealing with downloading, configuring and troubleshooting multiple tools separately, MimicPC gives you a complete ready-to-use setup with a single click.