Picasa is image management software developed by Google. Picasa is currently discontinued.

Hugin is a free panorama photo stitcher.

Photivo is a free and open source (GPL3) photo processor. It handles your RAW files as well as your bitmap files.

Photopea is a free online image editor, that runs without plugins. It can both read and save PSD files.

digiKam is a free and open-source image organizer and tag editor written in C++ utilizing the KDE Platform.

Darktable is a free and open-source photography workflow application and raw developer.

UFRaw (Unidentified Flying Raw) is an application which can read and manipulate photographs in raw image formats, as created by many digital cameras.

Bloom is an end-to-end protocol for identity attestation, risk assessment and credit scoring, entirely on the blockchain.