The Best Open Source Picasa AlternativesTop Photo Managers & Image Viewers like Picasa

The best open source alternative to Picasa is digiKam. If that doesn't suit you, our users have ranked more than 50 alternatives to Picasa and 18 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Picasa are Ente Photos, ImageGlass, Fossify Gallery and nomacs.

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Picasa alternatives are mainly Photo Managers, but if you're looking for Image Viewers or Image Editors you can filter on that. Other popular filters include Mac, Windows + Free, Open Source, Linux, Photo Organization, Free and Windows. You can also filter by region, for example EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Picasa.
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Alternatives list

  1. digiKam icon

    digiKam

     368 likes

    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.

    131 digiKam alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • KDE Plasma
    • Flathub
    • Qt
    Image editor
     
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    4
    digiKam vs Picasa Comments
    Elros Telperien
    Positive
    4

    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).

    tomater
    Negative
    0

    Well, the UI of digiKam is a torture. Using it after Picase is like going from UI back to command line. It's packed with features, yes, but UI overcomplicated far beyond what is necessary. Tabs on top, tabs on the left, tabs on the right, and yes, each window section can also have tabs...

    Guest
    Positive
    0

    It plays motion Gifs, and has the functionality I was looking for after Picasa as a program on my computer, not on google servers

    3 of 4 comments
    • digiKam is Free and Open SourcePicasa is Freemium and Proprietary
    • digiKam is Privacy focusedPicasa is not according to our users
  2. Ente Photos icon

    Ente Photos

     207 likes

    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.

    163 Ente Photos alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Self-Hosted
    • Flathub
    • F-Droid
    • Flatpak
    • Cloudron
    Ente Photos screenshot 1
    Ente Photos screenshot 2
    Ente Photos screenshot 3
     
  4. ImageGlass icon

    ImageGlass

     266 likes

    A feature-rich, simple-to-use app seamlessly integrated with a clean, minimal and modern user interface.

    90 ImageGlass alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    ImageGlass screenshot 1
     
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    1
    ImageGlass vs Picasa Comments
    BarnMTB
    Positive
    0

    While ImageGlass is only a photo viewer and not a full-on Photo Management software, ImageGlass can be configured to look and work pretty similarly to the Picasa Photo Viewer (part of Picasa), albeit it doesn't match Picasa's Photo Viewer completely. ImageGlass itself is a great piece of software.

    • ImageGlass is Free and Open SourcePicasa is Freemium and Proprietary
    • ImageGlass is an Image Viewer Picasa is a Photo Manager
    • ImageGlass is Lightweight, Customizable and Privacy focusedPicasa is not according to our users
  5. Fossify Gallery icon

    Fossify Gallery

     116 likes

    Privacy-focused offline gallery offers photo and video management, editing tools, secure locking by pin or fingerprint, EXIF metadata removal, recycle bin support for recovery, universal format compatibility, customizable material design themes, and no ads or trackers.

    74 Fossify Gallery alternatives

    Cost / License

    Application types

    Platforms

    • Android
    • Android Tablet
    • F-Droid
    • OpenAPK
    Fossify Gallery screenshot 1
    Fossify Gallery screenshot 2
    Fossify Gallery screenshot 3
     
  7. nomacs icon

    nomacs

     255 likes

    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.

    107 nomacs alternatives

    Cost / License

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • FreeBSD
    • Flathub
    nomacs screenshot 1
     
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    1
    nomacs vs Picasa Comments
    yuriykaz
    Positive
    0

    Nomacs is an image and photo browser and viewer. It's fast, cross-platform, and open source.

    • nomacs is Free and Open SourcePicasa is Freemium and Proprietary
    • nomacs is an Image Viewer Picasa is a Photo Manager
    • nomacs is Lightweight, Customizable and Privacy focusedPicasa is not according to our users
  8. Shotwell icon

    Shotwell

     188 likes

    Shotwell is an open source photo organizer designed for the GNOME desktop environment.

    113 Shotwell alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Linux
    • Flathub
    • Flatpak
    Shotwell screenshot 1
     
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    2
    Shotwell vs Picasa Comments
    Guest
    Positive
    0

    Works like Picasa (the Windows program) and its editor is so easy as powerfull.

    Windowsfree
    Positive
    0

    sorting and editing abilities

    • Shotwell is Free and Open SourcePicasa is Freemium and Proprietary
    • Shotwell is Lightweight and Privacy focusedPicasa is not according to our users
  10. Piwigo icon

    Piwigo

     74 likes

    Manage your photo collection with Piwigo Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.

    146 Piwigo alternatives

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • Windows Phone
    • iPad
    • Self-Hosted
    • Cloudron
    Piwigo screenshot 1
     
  11. gThumb icon

    gThumb

     108 likes

    gThumb is an image viewer and browser for the GNOME Desktop. It also includes an importer tool for transferring photos from cameras.

    127 gThumb alternatives

    Cost / License

    Application types

    Platforms

    • Linux
    • Flathub
    • GNOME
    Adjust Colors
     
  12. Fly Photos icon

    Fly Photos

     6 likes

    Fly Photos is one of the fastest photo viewers built for Windows, designed as a modern replacement for the now-discontinued Google Picasa Photo Viewer.

    59 Fly Photos alternatives

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    Fly Photos screenshot from the official GitHub repo as of 9th October 2025
     
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    1
    Fly Photos vs Picasa Comments
    BarnMTB
    Positive
    0

    Fly Photo is not a photo management software, but it's specifically created to replicate Picasa Photo Viewer (part of Picasa & discontinued alongside it), and it has been getting pretty close to Picasa. Fly Photo's main goal is to be fast, so the developer turned off some animations by default; but once you toggle those settings back on, it's very close to Picasa.

    • Fly Photos is Free and Open SourcePicasa is Freemium and Proprietary
    • Fly Photos is an Image Viewer Picasa is a Photo Manager
    • Fly Photos is Lightweight, Minimalistic and Privacy focusedPicasa is not according to our users
  14. Pix KDE icon

    Pix KDE

     5 likes

    Pix is an image gallery and image viewer. Pix can be used to open images with other applications like an image editor, add tags to the files, add annotations to pictures, rotate and share them.

    Cost / License

    Application types

    Platforms

    • Linux
    • Android
    • Linux Mobile
    • Flathub
    • KDE
    Pix KDE screenshot 1
     
12 of 18 Picasa alternatives