Shiki is a syntax highlighter that uses TextMate grammar to colorize code with high accuracy and visual quality.
The tool solves the problem of rendering code with precise syntax highlighting by leveraging TextMate grammar definitions, which provide comprehensive language support and consistent tokenization across different editors and environments. Rather than implementing custom parsing logic for each language, Shiki relies on the mature ecosystem of TextMate grammars to achieve both accuracy and broad language coverage. This approach allows it to highlight code consistently with how it appears in popular editors that use the same grammar system.
Shiki suits projects that need reliable syntax highlighting in web contexts, particularly static site generators, documentation systems, and markdown processors. It works well when you need accurate coloring that matches established editor behavior and want to avoid the maintenance burden of custom language definitions. The tool is particularly valuable for projects already using TextMate grammars or those requiring support for many programming languages without building language-specific parsers.
The project maintains multiple active branches supporting different major versions, with the main branch tracking the latest release line. Development includes ongoing refinement of grammar handling and feature expansion across versions, with historical branches preserved for users on earlier releases.
