A better Quick Look: code, Markdown, Mermaid, SQLite & more
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?
Looq: Preview Files launched on Product Hunt on March 20th, 2026 and earned 104 upvotes and 15 comments, placing #15 on the daily leaderboard. 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.
On the analytics side, Looq: Preview Files competes within Mac, Productivity and Developer Tools — topics that collectively have 1.3M followers on Product Hunt. The dashboard above tracks how Looq: Preview Files performed against the three products that launched closest to it on the same day.
Who hunted Looq: Preview Files?
Looq: Preview Files was hunted by Lauren. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Looq: Preview Files including community comment highlights and product details, visit the product overview.
Lauren