A better look at your files. Preview Markdown with KaTeX and Mermaid, highlight 190+ languages, view CSV and SQLite tables, browse archives and folders. All from Quick Look.
Hey everyone! I'm the developer behind Looq.
I built Looq because Quick Look on macOS handles images and PDFs great, but falls flat for everything else developers touch daily. Press Space on a Markdown file, a .swift file, or a SQLite database — you get raw text or a blank panel. I kept opening full editors just to glance at a file, and it added up.
Looq is a single Quick Look extension that previews:
Markdown — full GFM, KaTeX math, Mermaid diagrams, GitHub Alerts, auto TOC
Source code — syntax highlighting for 190+ languages, auto-formatting for minified JSON/CSS/XML
Data files — CSV and SQLite as native sortable tables with column headers and type info
Archives — browse ZIP/TAR contents without extracting
Diff/Patch — color-coded with dual line numbers
Everything runs locally on your Mac. No analytics, no telemetry, no accounts.
What file types or features would you want to see next?
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The Mermaid diagram preview sold me instantly. I write a lot of docs in Markdown and always have to open a separate editor just to check if the diagrams render correctly. Does it support live-reloading, like if I edit and save a file while Quick Look is open?
@ray_artlas Thanks! Right now you'd need to press Space again after saving to refresh the preview. Auto-refresh on file change is on the roadmap — it's a great use case for Mermaid workflows and I want to get it right.
Replies
Looq
The Mermaid diagram preview sold me instantly. I write a lot of docs in Markdown and always have to open a separate editor just to check if the diagrams render correctly. Does it support live-reloading, like if I edit and save a file while Quick Look is open?
Looq
@ray_artlas Thanks! Right now you'd need to press Space again after saving to refresh the preview. Auto-refresh on file change is on the roadmap — it's a great use case for Mermaid workflows and I want to get it right.
Looq
Auto-refresh on file change will land in the next release.