difftastic

Difftastic is a structural diff tool designed to compare files based on their syntax rather than merely their text, making it particularly useful for developers working with code. It supports over 30 programming languages and highlights changes in context, accurately identifying modifications such as whitespace differences and reformatting. Notable features include compatibility with version control systems like Git, a side-by-side display, and a robust handling of syntax variations, although it may encounter performance issues with large diff sets.