Quiver

Quiver is a Mac note-taking app built for programmers, letting you create rich notes that mix code cells (with syntax highlighting for 120+ languages) and text/markdown. Organize notes into notebooks and tag them for easy retrieval. Sync across Mac devices via iCloud, search through all content (including code) quickly, and export notes to PDF, HTML, or plain text. It supports inline images, math equations, and customizable themes, making it perfect for documenting projects, storing snippets, or writing technical guides tailored to developers’ needs.