Quick Look — Supercharged file previews

Preview files faster and smarter. Quick Look renders rich Markdown, code, data tables, archives and folders with features built for developers, writers, and power users.

Markdown

• Full GFM rendering with rich formatting and a live preview on save.
• KaTeX support for inline and block math.
• Mermaid diagram rendering.
• GitHub emoji shortcodes and alerts.
• Auto-generated table-of-contents sidebar.
• Remote image caching and scroll-position memory.

Source code

• Syntax highlighting for 190+ languages with progressive rendering and a sliding window for huge files.
• Configurable line numbers, fonts, tab width, word wrap, and independent light/dark themes.
• Shebang-based language detection and auto-formatting for JSON, CSS, XML, SVG, plist, and SQL.

Data files

• Native table views for CSV/TSV with resizable columns, alternating row colors and pagination for large files.
• SQLite multi-table preview with column type and constraint tooltips.
• Color-coded diffs/patches and quick multi-file tab switching.

Archives & folders

• Browse ZIP and TAR archives with a directory tree and fast binary parsing.
• Preview large archives quickly and view folder metadata (size, date, type) with sortable columns.
• Configurable folder display columns and Spotlight metadata in previews.

Workflows that just work

• Remembered scroll positions, configurable display options, and fast performance for large files make Quick Look ideal for daily code review, documentation, and data inspection.

What's New:

Version 1.5.0:

• Improved performance with faster previews and lower memory use
• Improved Diagnostics with more accurate detection and new repair actions
• Improved sorting and paging performance on large SQLite databases
• Smoother line number highlight in code previews
• Fixed Markdown front matter rendering
• Fixed blank previews when restoring scroll position in long Markdown files
• Fixed incorrect size display in folder and archive previews
• Minor UI refinements
• Stability and security improvements

Screenshots:

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