Work

Kritz

macOS
Swift
Open Source

A small, native Mac app for marking up screenshots: capture, annotate, copy. A free and open replacement for Skitch, with nothing leaving your Mac.

Kritz app icon

github.com/jojacobsen/Kritz · Download the latest release

What it is

Kritz is a small Mac app for marking up screenshots. Grab part of your screen, add an arrow, a bit of text or a box, then copy it or save it. It is a free, open replacement for Skitch, which stopped getting updates years ago. Everything stays on your Mac: no account, no cloud, no subscription.

What it does

  • Capture with a crosshair over a dimmed screen and a live size readout, or on a timer with a countdown
  • Mark things up with arrows, text, boxes, circles, a highlighter, numbered steps, a ruler and a spotlight
  • Move, resize and undo anything you place, and crop with a framed grid
  • Pull text straight out of a screenshot and read QR codes in it, all offline
  • Pick colors, blur out anything sensitive, and save as PNG or JPEG
  • Follows your system language, translated into 15 languages

Built with

A native Mac app written in Swift, no web wrapper. Text reading and QR codes run on Apple’s own tools, updates come in automatically, and the app is signed and notarized. Runs on macOS Sonoma and later.

My role

Everything: the idea, the design and the whole app.