A collection of simple, standalone HTML tools for everyday tasks. Each tool is a single HTML file with no build process required.
Inspired by Simon Willison’s tools.
- Coffee Ratio Calculator: A simple, beautiful coffee ratio calculator to find the perfect coffee-to-water ratio for your brew strength and serving size.
- Color Converter: Convert colors between HEX, RGB, HSL, and other formats. Supports multiple color spaces with live preview.
- Screenshot Generator: Create beautiful screenshots with customizable window frames, backgrounds, shadows, and padding. Paste, drop, or upload images to generate styled screenshots instantly.
Philosophy
These tools are designed to be:
- Simple: Each tool does one thing well
- Standalone: No dependencies, no build process (except where external libraries add value)
- Shareable: Just open the HTML file in a browser or share the URL
Usage
You can use these tools in several ways:
- Online: Click the tool links above
- Local: Download any HTML file and open it in your browser
- Fork: Clone this repo and modify the tools for your needs
License
MIT License - see LICENSE file for details