ComfyUI Extension: ComfyUI-TypeConverters

Authored by zfrsgtcu

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Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

Simple and lightweight type conversion nodes for ComfyUI.

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Custom Nodes (4)

README

ComfyUI Convert Nodes

Preview

Simple and lightweight type conversion nodes for ComfyUI.

These nodes are designed to make workflow automation easier when working with LLMs, APIs, JSON data, custom nodes, loop systems, and dynamic workflow logic.

Features

  • Convert any input to INT
  • Convert any input to FLOAT
  • Convert any input to STRING
  • Convert any input to BOOLEAN
  • Accepts a single ANY input
  • Returns a strongly typed ComfyUI output
  • Safe fallback values on conversion errors
  • Lightweight and easy to use

Included Nodes

Convert To Integer

Converts any supported input into an INT.

Examples:

| Input | Output | | ----- | ------ | | "6" | 6 | | 6.9 | 6 | | True | 1 | | False | 0 | | None | 0 |

Fallback value:

0

Convert To Float

Converts any supported input into a FLOAT.

Examples:

| Input | Output | | ----- | ------ | | "6.5" | 6.5 | | 6 | 6.0 | | True | 1.0 | | False | 0.0 |

Fallback value:

0.0

Convert To String

Converts any input into a STRING.

Examples:

| Input | Output | | ----- | ------ | | 123 | "123" | | True | "True" | | 6.5 | "6.5" |

Convert To Boolean

Converts any supported input into a BOOLEAN.

Examples:

| Input | Output | | ----- | ------ | | "true" | True | | "false" | False | | 1 | True | | 0 | False |

Fallback value:

False

Why Use These Nodes?

These nodes are particularly useful when working with:

  • Ollama
  • OpenAI
  • Gemini
  • JSON outputs
  • Loop systems
  • Conditional logic
  • API integrations
  • Dynamic ComfyUI workflows

Many LLM and API nodes return values as strings, while other ComfyUI nodes require specific data types such as INT, FLOAT, or BOOLEAN.

These conversion nodes provide a simple bridge between those systems.

Example:

Ollama
↓
Convert To Integer
↓
For Loop

Example:

JSON Extract
↓
Convert To Boolean
↓
Condition Switch

Installation

  1. Copy the zfrsgtcu-ComfyUI folder into your ComfyUI custom_nodes directory.

Example:

ComfyUI/custom_nodes/zfrsgtcu-ComfyUI
  1. Restart ComfyUI.
  2. The nodes will appear under:
zfr-nodes

Category

zfr-nodes

Compatibility

  • ComfyUI
  • ComfyUI Portable
  • Windows
  • Linux
  • macOS

License

MIT License

Feel free to use, modify, and distribute.

Run ComfyUI workflows without the setup

No installs, no CUDA version roulette, no GPU sitting idle on your bill. Bring a workflow and run it in the browser.

Learn more