Introduction to Twerge

Twerge is a Go library designed to enhance your experience working with Tailwind CSS in Go applications. The name "Twerge" comes from "Tailwind + Merge".

What is Twerge?

Twerge is a comprehensive Go library that performs four key functions for Tailwind CSS integration:

Intelligent Class Merging - Resolves conflicts between Tailwind CSS classes according to their specificity rules
Class Name Generation - Creates short, unique CSS class names based on hashes of the merged classes
Class Mapping Management - Maintains mappings between original class strings and generated class names, with code generation capabilities

Why Use Twerge?

If you're developing Go-based web applications with Tailwind CSS, Twerge offers significant advantages:

Smaller HTML output - By merging conflicting classes and generating short class names
Better performance - Through intelligent caching and efficient lookups
Build-time optimization - Via code generation capabilities
Runtime flexibility - Through the runtime static hashmap for dynamic class handling
Simplified workflow - By integrating seamlessly with Go templates, particularly templ

Key Features

Intelligent class merging - Resolves conflicts according to Tailwind CSS specificity rules
Short class name generation - Creates compact, unique class names for reduced HTML size
Runtime class management - Provides a fast lookup system for dynamic applications
Code generation - Produces optimized Go code for class mappings
CSS integration - Works with Tailwind CLI and CSS build pipelines
Flexible configuration - Customizable caching, hash algorithms, and more
Nix integration - Reproducible development environment

Target Use Cases

Twerge is particularly well-suited for:

Go web applications using Tailwind CSS
Projects using the templ templating language
Applications requiring build-time CSS optimization
Static site generators with Tailwind CSS integration

Next Steps

To get started with Twerge, check out: