Picasa is described as 'Software download from Google, that helps you organize, edit, and share your photos. The local application usage and the online storage up to 1 GB is free, and it is easy to use. The online version is called Picasa Web Albums' and is a leading Photo Manager in the photos & graphics category. There are more than 50 alternatives to Picasa for a variety of platforms, including Windows, Mac, Android, Web-based and Linux apps. The best Picasa alternative is digiKam, which is both free and Open Source. Other great apps like Picasa are FastStone Image Viewer, Ente Photos, Adobe Lightroom and ImageGlass.
digiKam is an advanced digital photo management tool that simplifies importing and organizing photos into albums. It supports various formats including RAW, features tagging, metadata management, duplicate finder, photo editing, sharing, GPS data handling, and has cross-platform compatibility.
Fast image browser and editor for Windows with robust support for browsing, editing, and conversion. Features red-eye removal, resizing, enhanced EXIF access, and musical slideshows with over 150 effects.
Open-source, end-to-end encrypted backup and sharing for photos and videos, multi-platform sync, original quality preservation, privacy-first design, collaborative albums, family sharing, secure external sharing, robust data replication, and device imports.
Maximize your photo editing and organizing abilities across platforms with non-destructive editing in high resolution and 1 TB of cloud storage. Harness simple tools like sliders to achieve your ideal image and automatically apply tags. Access and utilize Lightroom on mobile, web, or desktop.
A feature-rich, simple-to-use app seamlessly integrated with a clean, minimal and modern user interface.
Unleash memories, not personal data. Fossify Gallery is the ultimate photo and video app that's as powerful as it is private. No ads, no unnecessary permissions – just a seamless experience tailored for you.
nomacs is a free, open source image viewer, which supports multiple platforms. You can use it for viewing all common image formats including RAW and psd images.
Shotwell is an open source photo organizer designed for the GNOME desktop environment.
Multi-format solution for managing, searching, and organizing images, videos, audio, and fonts with advanced tags, folders, smart folders, color filters, and over 90 design file previews. Features browser integration, annotations, and creative workflow support.
Offers organization, viewing, and editing tools for digital images, supports over 700 RAW formats, enables metadata embedding and syncing, dynamic category and keyword filters, workflow optimizations, non-destructive edits, detailed image preview, and sharing options.
Simple Gallery is a highly customizable offline gallery. Organize & edit your photos, recover deleted files with the recycle bin, protect & hide files and view a huge variety of different photo & video formats including RAW, SVG and much more.
Manage your photo collection with Piwigo Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
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Great photo and tag management tools. It's also apparently the only program, from the ones listed, that has facial recognition features (although not great in comparison to Picasa's).