ansispan is a compact and dependency-free JavaScript library for parsing ANSI escape codes from strings and transforming them into HTML <span> elements with corresponding CSS styles. This allows you to display colored terminal output directly in web browsers or other HTML-based environments. It's lightweight, efficient, and ideal for applications where you need to render terminal styled text without relying on heavy dependencies. The library handles common ANSI sequences for colors, bold, italic, and underline, enhancing the readability of terminal content online.