Flatpak Packages Page 8 of 39

Browse 951 Flatpak Packages on AlternativeTo.

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  1. Sejda icon
     40 likes

    Sejda helps with your PDF tasks: edit existing text, split, merge, extract, compress, export to other formats and more.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2015

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Google Chrome
    • Flathub
    • Flatpak
    • NL flagNetherlands
    • European Union flagEU
    Sejda screenshot 1
    Sejda screenshot 1
    Sejda screenshot 2
    +2
    Sejda screenshot 3
    197 alternatives
    4.0
    Very Good11 ratings
  2. Reins icon
     13 likes

    Empowering LLM researchers and hobbyists with seamless control over self-hosted models. Connect remotely, customize prompts, manage chats, and fine-tune configurations. All in one intuitive app.

    Cost / License

    Application type

    Since

    • Since 2025

    Platforms

    • Mac
    • iPhone
    • iPad
    • Linux
    • Flathub
    • Flatpak
    • TR flagTürkiye
    Reins screenshot 1
    Reins screenshot 1
    Reins screenshot 2
    +13
    Reins screenshot 3
    107 alternatives
  3. Burp Suite icon
     49 likes

    Burp Suite is an integrated platform for performing security testing of web applications. Its various tools work seamlessly together to support the entire testing process, from initial mapping and analysis of an application's attack surface, through to finding and exploiting...

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Since

    • Since 2011

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • GB flagUnited Kingdom
    Burp Suite screenshot 1
    Burp Suite screenshot 1
    49 alternatives
  4. OptiImage icon
     16 likes

    Optimize images efficiently supporting PNG, JPEG, WebP, and SVG with flexible compression settings offering safe mode to prevent data loss.

    Cost / License

    Application type

    Since

    • Since 2024

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • DE flagGermany
    • European Union flagEU
    OptiImage screenshot 1
    89 alternatives
  5. Modern HTTP client for GNOME with GTK 4 UI, supports GET/POST/PUT/DELETE, custom headers, secure environment variables, projects, request history, cURL export, and syntax highlighting.

    Cost / License

    Application type

    Since

    • Since 2026

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • GNOME
    • CZ flagCzechia
    • European Union flagEU
    Roster HTTP Client screenshot 1
    Roster HTTP Client screenshot 1
    Roster HTTP Client screenshot 2
    26 alternatives
  6. CLion icon
     57 likes

    The intelligent cross-platform C/C++ IDE. CLion is a new IDE that helps you be more productive while developing apps with C and C++ for Windows, Linux and OS X. Take advantage of proven JetBrains expertise in code quality, efficient code navigation, smart code completion...

    Cost / License

    • Free Personal
    • Proprietary

    Application type

    Since

    • Since 2014

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • Snapcraft
    17 alternatives
  7. Tauon Music Box icon
     29 likes

    A music player for the desktop. Designed to be powerful and streamlined, putting the user in control of their music collection.

    Cost / License

    Application type

    Since

    • Since 2018

    Platforms

    • Windows
    • Linux
    • Flatpak
    • Flathub
    • GB flagUnited Kingdom
    Tauon Music Box screenshot 1
    Tauon Music Box screenshot 1
    Tauon Music Box screenshot 2
    58 alternatives
  8. FlameGet icon
     6 likes

    FlameGet is a modern, lightweight GTK4 download manager designed specifically for the Linux desktop. By wrapping the power of Aria2, cURL, and yt-dlp into a sleek graphical interface, FlameGet ensures your downloads are handled efficiently, organized instantly, and accelerated...

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2026

    Platforms

    • Windows
    • Linux
    • Google Chrome
    • Flathub
    • Debian
    • Flatpak
    • Mozilla Firefox
    • AppImage
    • MA flagMorocco
    The main FlameGet download interface
    FlameGet's settings interface
    The main FlameGet downloader interface (Video)
    +1
    The main FlameGet downloader interface (Torrent)
    65 alternatives
  9. ZetaOffice icon
     9 likes

    Access LibreOffice in your browser with ZetaOffice, offering self-hosted or CDN options, customizable API integration, and full data control.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Since

    • Since 2024

    Platforms

    • Windows
    • Linux
    • Online
    • Self-Hosted
    • Flathub
    • Flatpak
    • DE flagGermany
    • European Union flagEU
    ZetaOffice screenshot 1
    ZetaOffice screenshot 1
    ZetaOffice screenshot 2
    60 alternatives
  10. BudsLink icon
     6 likes

    An application that provides battery monitoring and feature control for supported Bluetooth wearable audio devices, including AirPods, Beats, Sony, Samsung Galaxy Buds and Nothing/CMF buds.

    Cost / License

    Application type

    Since

    • Since 2026

    Platforms

    • Linux
    • Flathub
    • Flatpak
    • Linux Mobile
    BudsLink screenshot 1
    BudsLink screenshot 1
    BudsLink screenshot 2
    +1
    BudsLink screenshot 3
    16 alternatives
  11. Cheese icon
     104 likes

    Cheese uses your webcam to take photos and videos, applies fancy special effects and lets you share the fun with others. It was written as part of Googles 2007 Summer of Code lead by Daniel G. Siegel and mentored by Raphaël Slinckx.

    Cost / License

    Application type

    Since

    • Since 2010

    Platforms

    • Linux
    • BSD
    • Flathub
    • GNOME
    • Flatpak
    • US flagUnited States
    Main window
    Cheesy Effects
    Cheese screenshot 2
    44 alternatives
  12. LazPaint icon
     46 likes

    Raster & vector graphic editor with many tools and filters, written in Lazarus. Portable, 32bit & 64bit versions, ORA format & 16384x16384 image support. In app 3D import & rendering.

    Cost / License

    Application type

    Since

    • Since 2014

    Alerts

    • Discontinued

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • Flathub
    • Flatpak
    • FR flagFrance
    • European Union flagEU
    Main UI
    LazPaint screenshot 1
    16K PNG AT 1:1 VIEW IN 32BIT VERSION, RESAMPLED TO 8K in 32bit
    +2
    16K PNG, RESAMPLED TO 8K AT FIT VIEW IN 32BIT VERSION
    57 alternatives
  13. Tangent Notes icon
     20 likes

    Tangent is designed to let you write the way you think. Your thoughts are connected; Tangent lets you link to existing notes and make new ones with ease.

    Cost / License

    Application type

    Since

    • Since 2023

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • US flagUnited States
    Tangent Notes screenshot 1
    Tangent Notes screenshot 1
    49 alternatives
  14. Feeel icon
     26 likes

    Feeel is an open-source Android app for doing simple at-home exercises. It holds the acclaimed full body scientific 7-minute workout regime and allows creating custom workouts as well. While the app currently contains a limited amount of exercises, the plan is to drastically...

    Cost / License

    Application type

    Since

    • Since 2018

    Platforms

    • Linux
    • Android
    • Linux Mobile
    • Flathub
    • F-Droid
    • Flatpak
    • Global
    Overview of workouts
    Workout in progress
    Paused exercise
    93 alternatives
  15. Sunshine is a self-hosted game stream host for Moonlight. Offering low latency, cloud gaming server capabilities with support for AMD, Intel, and Nvidia GPUs for hardware encoding. Software encoding is also available.

    Cost / License

    Application type

    Since

    • Since 2022

    Platforms

    • Windows
    • Linux
    • AppImageHub
    • Flatpak
    • US flagUnited States
    WebUI homepage
    WebUI Configuration
    WebUI Applications
    12 alternatives
  16. Scilab icon
     105 likes

    Scilab is free and open source software for numerical computation providing a powerful computing environment for engineering and scientific applications. Scilab includes hundreds of mathematical functions.

    Cost / License

    Since

    • Since 2009

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • FR flagFrance
    • European Union flagEU
    Scilab screenshot 1
    Scilab screenshot 1
    Scilab screenshot 2
    +1
    Scilab screenshot 3
  17. Furmark icon
     41 likes

    Furmark is computer program for testing graphics processing devices. Based on API OpenGL. The main purpose of FurMark is stability testing GPU and an assessment productivity.

    Cost / License

    • Free
    • Proprietary

    Application type

    Since

    • Since 2009

    Platforms

    • Windows
    • Linux
    • Flatpak
    • Flathub
    • FR flagFrance
    • European Union flagEU
    Furmark screenshot 1
    25 alternatives
  18. Impactor icon
     6 likes

    Open-source cross-platform sideloading app with user-friendly UI, supporting macOS, Linux, Windows. Installs SideStore, tweaks, and signs apps with Apple ID.

    Cost / License

    • Free
    • Open Source (MIT)

    Since

    • Since 2026

    Platforms

    • Mac
    • Windows
    • Linux
    • Flathub
    • Flatpak
    • US flagUnited States
    Impactor screenshot 1
    Impactor screenshot 1
    Impactor screenshot 2
    8 alternatives
  19. FeedDeck icon
     18 likes

    FeedDeck is an open source RSS and social media feed reader, inspired by TweetDeck. FeedDeck allows you to follow your favorite feeds in one place on all platforms.

    Cost / License

    • Paid
    • Open Source (MIT)

    Application type

    Since

    • Since 2023

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • iPad
    • Flathub
    • Flatpak
    • DE flagGermany
    • European Union flagEU
    FeedDeck screenshot 1
    FeedDeck screenshot 1
    FeedDeck screenshot 2
    +2
    FeedDeck screenshot 3
    119 alternatives