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Shottr vs ksnip: catalog facts
Shottr	ksnip
Freemium Free version available; a paid version unlocks additional features.	Free Free and open source under the GPL 3.0.
macOS	Windows, macOS, Linux
Scrolling capture handles full-page screenshots that the built-in tool cannot OCR lets you extract text directly from a screenshot	Works on Wayland as well as X11 Numbered markers, blur and pixelate for writing instructions safely
macOS only Advanced features require the paid version	The author has asked for a co-maintainer, so the future is uncertain Releases are slow; 1.10.1 on GitHub dates from March 2023
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 21, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.