Invariant Highlighter is a Visual Studio Code extension that adds incremental semantic highlighting alongside existing language services. It supports languages including Java, PHP, Python, and shell scripts through semantic and Tree-sitter-based highlighting for developers.
Invariant Highlighter sits in PulseGate's Browser DevTools & extensions category. It improves code readability by adding incremental semantic highlighting where existing language services are insufficient. Invariant Highlighter is a B2B product aimed at developers using Visual Studio Code. Invariant Highlighter is free to use. It ships for the web, Windows, macOS, and Linux.
Behind Invariant Highlighter is Andre Brait, and it first shipped in 2026. Among its 4 catalogued features are semantic highlighting, incremental updates, and tree-sitter parsing.
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