comfyui-random-nodes

ComfyUI Random Nodes

Two lightweight nodes that bring proper "roll the dice" randomness to your ComfyUI workflows — without wiring up seeds, primitives, or extra math nodes just to get a random number.

Random Numbers, Without the Fuss

Need a random integer to pick from a list, or a random float to jitter a value between runs? Random Int and Random Float drop straight into your workflow and generate a value in the range you set. A single randomized toggle controls the behavior: flip it on and the node rolls a new value every run; flip it off and it keeps returning the last one, so you can lock in a result you liked without disconnecting anything.

Features

• 🎲 Two focused nodes — Random Int for whole numbers, Random Float for decimals with precision and step control.
• 🔁 Randomize on demand — toggle randomized to generate a fresh value each run, or freeze it to keep reusing the current one.
• 🖱️ One-click controls — "New random value" and "Use current" buttons let you roll or lock a value directly from the node, no extra wiring needed.
• 📐 Fine-grained float control — set decimal precision and snap results to a step grid (e.g. 0.05 increments).
• 🔌 Every input doubles as an output — all inputs are passed through, so you can wire them into other nodes without splitting your connections or repeating values.
• 🪶 Zero dependencies — pure Python standard library, nothing extra to install.

Requirements

• ComfyUI with V3 API support (comfy_api.latest)
• Python 3.10+

Quick Start

Clone this repository directly into your ComfyUI custom_nodes/ folder, then restart ComfyUI:

cd ComfyUI/custom_nodes
git clone https://github.com/Mistralys/comfyui-random-nodes.git

Once ComfyUI restarts, find the nodes by right-clicking the canvas and selecting Add Node → random, then pick Random Int or Random Float. Click New random value to roll, or Use current to keep what you've got.

Learn More

| Resource | Description | |----------|-------------| | Project Manifest | Technical reference: node schemas, data flow, and design decisions | | changelog.md | Version history and notable changes | | LICENSE | MIT license |