Looking at your requirements, there are some apps that are worth looking at: - [Photoprism][1], demo is [here][2]. - [Piwigo][3], demo is [here][4]. - [Photonix][5] I suggest trying out their demos, so that you can decide what works best for you. There is also a [comprehensive list here][6] with other suggestions. [1]: https://github.com/photoprism/photoprism [2]: https://demo.photoprism.org [3]: https://piwigo.org/ [4]: https://piwigo.org/demo/ [5]: https://github.com/damianmoore/photonix [6]: https://en.wikipedia.org/wiki/Comparison_of_photo_gallery_software