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digiKam vs Koko: catalog facts
digiKam	Koko
Free Free and open source, part of the KDE community.	Free Free and open source, part of KDE.
Windows, macOS, Linux	Linux
Handles libraries of more than 100,000 images without falling over Face detection and tagging to find photos of specific people	Works on desktop and mobile Linux Regular releases with KDE Gear
A large, complex application with a correspondingly steep learning curve Its editor is capable but not a substitute for a dedicated raw developer	Linux only Simpler than a full photo manager
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 24, 2026

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