There are many great free and open-source alternatives to paid photo libraries. This project aims to track and compare the feature set between the many different options with a focus on 'Gratis' (free as in free beer) open source photo libraries. 'Libre' (free as in free speech) projects are also welcome, but will likely need to be submitted via a pull request since the time in testing each different project is significant.

✅ = Feature exists in at least a limited fashion
🚧 = Feature may exist but may not be practical or officially released
❌ = Feature does not yet exist
#️⃣ = Subjective measure of feature quality (on scale of 0-10)
Tip: Hover over icons for missing/incomplete features for more information (link to repository issue, etc)

Feature	Damselfly	Immich	Librephotos	Lychee	Nextcloud Photos	Nextcloud Memories	Photonix	PiGallery2	Photoprism	Photoview	Piwigo
Github Stars
Active Contributors	1	4	2	3	3	1	1	1	4	1	3
Source Language	C#	Dart / Typescript	Python	PHP	JavaScript	PHP / Vue	Python	TypeScript	Go	Typescript / Go	PHP
License
Demo	❌	✅6️⃣	✅5️⃣	✅4️⃣	✅4️⃣	✅6️⃣	✅8️⃣	✅8️⃣	✅9️⃣	✅9️⃣	✅9️⃣
Freeness	✅🔟	✅🔟	✅🔟	✅🔟	✅🔟	✅🔟	✅🔟	✅🔟	🚧7️⃣	✅🔟	✅🔟
Automatic Mobile Upload	❌	✅7️⃣	❌	❌	✅7️⃣	✅7️⃣	❌	❌	✅6️⃣	❌	✅7️⃣
Web App	✅8️⃣	✅8️⃣	✅8️⃣	✅8️⃣	✅5️⃣	✅9️⃣	✅7️⃣	✅7️⃣	✅7️⃣	✅8️⃣	✅8️⃣
Android App	❌	✅8️⃣	✅7️⃣	❌	✅3️⃣	✅3️⃣	✅4️⃣	❌	🚧4️⃣	🚧3️⃣	✅7️⃣
iOS App	❌	✅8️⃣	🚧3️⃣	❌	✅3️⃣	✅3️⃣	✅4️⃣	❌	🚧4️⃣	✅6️⃣	✅7️⃣
Desktop App	✅9️⃣	❌	❌	❌	✅2️⃣	✅2️⃣	❌	❌	❌	❌	❌
LivePhotos Support	❌	✅9️⃣	❌	✅6️⃣	❌	✅8️⃣	❌	❌	✅7️⃣	❌	❌
Video Support	❌	✅7️⃣	✅8️⃣	✅6️⃣	✅5️⃣	✅7️⃣	❌	✅8️⃣	✅7️⃣	✅7️⃣	✅4️⃣
Photo Map	✅7️⃣	✅4️⃣	✅8️⃣	❌	✅8️⃣	✅7️⃣	✅9️⃣	✅8️⃣	✅6️⃣	✅8️⃣	✅7️⃣
Photo Discovery	❌	❌	✅7️⃣	❌	✅6️⃣	✅7️⃣	❌	❌	✅6️⃣	❌	✅1️⃣
Albums	❌	✅8️⃣	✅9️⃣	✅8️⃣	✅4️⃣	✅8️⃣	✅5️⃣	✅6️⃣	✅8️⃣	✅6️⃣	✅8️⃣
Slideshow	❌	❌	❌	❌	✅5️⃣	✅5️⃣	❌	✅7️⃣	✅6️⃣	❌	✅5️⃣
Timeline	✅5️⃣	✅8️⃣	✅9️⃣	❌	✅4️⃣	✅9️⃣	✅5️⃣	✅5️⃣	✅5️⃣	✅9️⃣	✅3️⃣
Photo Sharing	❌	✅4️⃣	✅9️⃣	✅9️⃣	✅8️⃣	✅8️⃣	❌	✅7️⃣	✅7️⃣	✅8️⃣	✅5️⃣
Photo Search	✅8️⃣	✅7️⃣	✅8️⃣	✅5️⃣	✅4️⃣	✅4️⃣	✅8️⃣	✅7️⃣	✅8️⃣	✅5️⃣	✅7️⃣
Duplicate Handling	❌	✅6️⃣	❌	❌	✅8️⃣	✅8️⃣	❌	✅5️⃣	✅6️⃣	❌	✅6️⃣
User Defined Tags	❌	❌	❌	✅5️⃣	✅️3️⃣	✅️3️⃣	✅6️⃣	❌	✅5️⃣	❌	✅7️⃣
Docker Installation	✅8️⃣	✅7️⃣	✅7️⃣	✅7️⃣	✅6️⃣	✅6️⃣	✅8️⃣	✅7️⃣	✅6️⃣	✅8️⃣	✅7️⃣
Object/Face Recognition	✅8️⃣	✅6️⃣	✅8️⃣	❌	✅8️⃣	✅8️⃣	✅8️⃣	✅6️⃣	✅9️⃣	✅6️⃣	✅5️⃣
Basic Editing	❌	❌	❌	❌	✅6️⃣	✅6️⃣	❌	❌	❌	❌	❌
EXIF Data	✅9️⃣	✅7️⃣	❌	✅7️⃣	❌	✅8️⃣	✅7️⃣	✅7️⃣	✅9️⃣	✅7️⃣	✅6️⃣
Multiple User Support	✅7️⃣	✅7️⃣	✅8️⃣	✅6️⃣	✅9️⃣	✅9️⃣	✅7️⃣	✅7️⃣	❌	✅6️⃣	✅8️⃣

Note: This list is by no means comprehensive. For links to other photo library projects, see the Awesome Self-Hosted list and the Awesome Privacy list.

An HTLM version of this comparison table is here: https://meichthys.github.io/foss_photo_libraries/

Please contribute additions and corrections! When contributing, please add links to the source of the information. (i.e. link to an issue that indicates that a feature does not exist)