Flint Capture / Blog
Notes from building it.
How the app works, and why it was built the way it was. Mostly for people who care what happens under a screenshot tool.
What ⇧⌘4 gives you, and where it stops
macOS ships a genuinely good screenshot tool. Here is an honest account of what it covers, and the specific places it runs out.
How to redact a screenshot so it stays redacted
Blurring and pixelating text is not always the safe operation people assume. A practical guide to hiding things in images without them coming back.
Why the app is 1.8 megabytes
Not as a boast — as a consequence. What you give up to ship a Mac app smaller than the screenshot it takes, and what you get back.
Scrolling capture should fail loudly
Stitching screenshots together is easy until the content stops being distinctive. Here is why Flint Capture would rather refuse than hand you a quietly mangled image.
Why it is $19 once
A screenshot tool is not a service. It runs on your Mac, it talks to nothing, and its costs do not recur — so neither does the price.
Licences that outlive the licence server
Flint Capture verifies your key with an Ed25519 signature and no network call. If this site vanishes tomorrow, every licence still works.