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I built a macOS Quick Look app for Markdown, SQLite, ZIP, and 300 more

quicklookpro.com · 1 day on the radar

RISING
Where is the demand coming from?
Mixed
Some genuine outside demand, some founder reach. This is the read that decides whether the traction would transfer to you.
Roughly what does it earn?
Not disclosedNo basis to estimate
We do not publish a figure until we have something to base it on. When we do, the method that produced it is shown alongside the range.
Could you build it?
Yes, in about 3 weeks
Nothing patented, no network effect, and no proprietary data set standing in the way.

What it is

QuickLook Pro extends macOS Finder's native preview capability to 300+ file types including archives, code, SQLite databases, and structured data formats. The app launched with minimal traction (1 HN point) but addresses a genuine usability gap in file exploration workflows.

The one thing to knowNo revenue model is apparent (free or paid status unclear), and the single data point of user testimonials lacks corroboration or any indication of install base, making commercial viability assessment impossible at launch velocity.

Proof we found, with sources

HNThe Show HN post reached 2 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 2 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 2 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 2 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 2 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 1 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 1 points on Hacker News.23 Sept 2026 · source
HNThe Show HN post reached 1 points on Hacker News.23 Sept 2026 · source

The scores behind the verdict

Directional reads from public signals, 0 to 100
▸ Show the four scores
TractionWeak8 / 100
How much demand shows up from people outside the founder's own circle.
CopyabilityFair65 / 100
How feasible it is for a competent builder to ship something comparable.
Wedge potentialFair45 / 100
How much room is left for a new entrant: gaps, ignored segments, pricing openings.
MonetizationUnproven0 / 100
How much evidence there is that people actually pay: visible pricing, revenue claims, a paid tier in use.

Unlock the full brief

How it works under the hood, how it gets customers, where it is weak, and the opening we would take, with a bottom-line verdict.

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Revenue, user and tactic numbers are evidence we found and attributed, with a confidence rating.
They are directional reads, never verified guarantees.