welcome to ComfyLab Pack!
A collection of carefully experimented nodes, to improve your Comfy UX.

News | Node overview | Documentation | Installation

# News Latest additions: - 2025-01-29 - v0.0.5: - new List utility nodes: Random Seeds / Checkpoints / LoRAs / Samplers/ Schedulers - reorganize / improve wiki > Full changelog in the [dedicated file](./CHANGELOG.md). # Node overview **The complete list of nodes can be found in the [wiki / node list](./wiki/node_list.md)** ## XY Plot - _build beautiful and unique grids_ **Auto-queue**, make virtually **anything vary** (checkpoints, LoRAs, ...), **not restricted to KSampler**, ...\ **Many configuration options**: pagination, page header / footer, custom fonts (even your own), background,...\ **Make it RGBA** and add a custom background image for a very unique look.

Detailed features (click to show)

- simple to use by default: **only 2 nodes** - **optional configuration nodes** to customize the grid, or the **page header / footer** - with possible **pagination, row / column switch** - **auto-queuing** (very simple to use, automatic error / interruption detection) - you can virtually **make anything vary**: CFG, seed, checkpoint / sampler / LoRA / ... - **not restricted to KSampler**: can be adapted to any process generating images - **many configuration options**: - custom row/col headers, with string templating - font (type / size / color) - in row / column headers, and/or page header / footer (each configurable differently) - either one of the 4 fonts shipped with the extension, or any other TTF font on your disk - background color: - make **your grid transparent (RGBA)** to add a custom background image - padding, wrap, ... - mix any image resolution / aspect ratio - ...

> [!NOTE] > For a quick start, it is advised to read the [core concepts](./wiki/node%20reference/xy%20plot/00%20-%20core%20concepts.md).\ > More information in the [XY Plot node reference](./wiki/node%20reference/xy%20plot/) and the [dedicated tutorials](./wiki/tutorials/XY%20Plot/), from simple to advanced.\ > You can also check the [examples](./wiki/examples/), they will be frequently extended. ## Output Config - _dynamic outputs from a config file_ Use the `Output Config` nodes to load custom config files, and **dynamically create any number of custom outputs**, that you can later connect to other nodes before executing the workflow.\ Very **useful to standardize your workflows**, and keep a collection of configurations / test cases separately, share them with others... and many other applications.

Detailed features (click to show)

- **any number of outputs**, you decide what you need for your speific cases - **very simple** config file, by default, only `output: value` is needed - optionally configure the **shape, color, and even the type** of each output - available in **JSON / JSON5 / YAML** (with comments if you wish) - strictly validated with a **JSON Schema**, with **detailed visual report** in case of errors

> [!NOTE] > More information in the [Output Config node reference](./wiki/node%20reference/output%20config.md) and the [dedicated tutorials](./wiki/tutorials/Output%20Config/).\ > You can also check the [examples](./wiki/examples/), they will be frequently extended. ## Format String - _one node to rule them all_ Take advantage of the powerful **Python string `format()`** method, to build strings using placeholders.\ Very useful for many operations: **insert / prefix / append, concatenate, pad, truncate**, ...\ **Any number of inputs** _(credits to [@melMass](https://github.com/melMass) and his [comfy_mtb](https://github.com/melMass/comfy_mtb) extension for the trick!)_.\ Compatible with **integers, floats, booleans.**\ Exist in 2 flavors: **simple string and multiline**. > [!NOTE] > More information in the [Format String node reference](./wiki/node%20reference/format.md) and the [dedicated tutorials](./wiki/tutorials/Format/).\ > You can also check the [examples](./wiki/examples/), they will be frequently extended. ## Queue - _efficient and simple to use_ Exist in 3 flavors: **Generic**, **File**, **Image**.\ Very simple to use: **auto-queuing** (with error / interruption detection), no counter to reset or queue size to set. ## List utilities - _make lists as you want_ A set of nodes to **create lists** (from string, file, individual elements).\ **Parse and convert** strings to integers, floats, ...\ **Merge / limit** lists. ## More utilities Please check the [node list](./wiki/node_list.md). # Documentation > [!TIP] > All nodes in this extension has been adjusted with custom tooltips.\ > By simply **moving the mouse pointer over** a node or its inputs / widgets / outputs, you can get useful **contextual information**. In addition, more detailed information in the [wiki](./wiki/): - [Node list](./wiki/node_list.md) - [Node reference](./wiki/node%20reference/) - [Tutorials](./wiki/tutorials/) - [Examples](./wiki/examples/) # Installation Preferred installation method via the [ComfyUI Manager](https://github.com/ltdrdata/ComfyUI-Manager): search and install `ComfyLab Pack` Manual installation (from the ComfyUI directory): ```bash source venv/bin/activate # adjust to your env cd custom_nodes git clone https://github.com/bugltd/ComfyLab-Pack.git cd ComfyLab-Pack pip install -r requirements.txt cd ../.. deactivate # run ComfyUI as usual ```

Name	Type	Description
list	LIST	list of random seeds
count	INT	number of values

List: Random Seeds (lab)

Inputs (1)

Outputs (2)