Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. General talk
  3. The Lounge
  4. Exactly how FOSS is Qt?
Forum Update on Monday, May 27th 2025

Exactly how FOSS is Qt?

Scheduled Pinned Locked Moved The Lounge
licenselicensingfosslibre
3 Posts 3 Posters 2.8k Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • B Offline
    B Offline
    BaldSpoon
    wrote on 10 Jul 2015, 23:48 last edited by
    #1

    I am curious exactly how different versions of Qt are free and open-source software. I am currently trying to decide whether to use GTK+ or Qt as the GUI toolkit for my FOSS program, but I'm curious as to whether or not some variants of Qt (like Qt for Application Development) are FOSS like the standard open-source version. I don't want to use Qt (not even the FOSS version) if there is a proprietary, "premium" version of Qt. I'd rather use a toolkit that has a FOSS dedication and has all features in its FOSS version, like GTK+. Tell me, is all of Qt free and open-source, or just Qt Open Source.

    ? 1 Reply Last reply 11 Jul 2015, 20:41
    0
    • M Offline
      M Offline
      mrjj
      Lifetime Qt Champion
      wrote on 10 Jul 2015, 23:54 last edited by
      #2

      http://doc.qt.io/qt-5/licensing.html

      Its not as FOSS as gtk+ but damn its nice :)

      1 Reply Last reply
      1
      • B BaldSpoon
        10 Jul 2015, 23:48

        I am curious exactly how different versions of Qt are free and open-source software. I am currently trying to decide whether to use GTK+ or Qt as the GUI toolkit for my FOSS program, but I'm curious as to whether or not some variants of Qt (like Qt for Application Development) are FOSS like the standard open-source version. I don't want to use Qt (not even the FOSS version) if there is a proprietary, "premium" version of Qt. I'd rather use a toolkit that has a FOSS dedication and has all features in its FOSS version, like GTK+. Tell me, is all of Qt free and open-source, or just Qt Open Source.

        ? Offline
        ? Offline
        A Former User
        wrote on 11 Jul 2015, 20:41 last edited by A Former User 7 Nov 2015, 20:44
        #3

        @BaldSpoon Hi, please see this article: http://www.qt.io/faq/

        1 Reply Last reply
        0

        2/3

        10 Jul 2015, 23:54

        • Login

        • Login or register to search.
        2 out of 3
        • First post
          2/3
          Last post
        0
        • Categories
        • Recent
        • Tags
        • Popular
        • Users
        • Groups
        • Search
        • Get Qt Extensions
        • Unsolved