Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Special Interest Groups
  3. Independent Developers
  4. Qt for commercial Use
Forum Update on Monday, May 27th 2025

Qt for commercial Use

Scheduled Pinned Locked Moved Unsolved Independent Developers
2 Posts 2 Posters 731 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.
  • G Offline
    G Offline
    guplasse
    wrote on last edited by
    #1

    Hello,
    I'm a young developper and i want to build my own sofware. I know thats Qt is under 2 licenses so i want additionnal explanations.
    my first question is :

    • If i build my sofware with QT Open Source Licence, can i sell it ? if yes what are the conditions ? How should I mention that I am using QT ?
      My second is :
    • if i have to buy QT, can i really do whatever i want with the source code ?
      Thank you in advance for your reply.
      Guillaume
    JKSHJ 1 Reply Last reply
    0
    • G guplasse

      Hello,
      I'm a young developper and i want to build my own sofware. I know thats Qt is under 2 licenses so i want additionnal explanations.
      my first question is :

      • If i build my sofware with QT Open Source Licence, can i sell it ? if yes what are the conditions ? How should I mention that I am using QT ?
        My second is :
      • if i have to buy QT, can i really do whatever i want with the source code ?
        Thank you in advance for your reply.
        Guillaume
      JKSHJ Offline
      JKSHJ Offline
      JKSH
      Moderators
      wrote on last edited by
      #2

      Hi, and welcome!

      @guplasse said in Qt for commercial Use:

      • If i build my sofware with QT Open Source Licence, can i sell it ?

      Yes, you can.

      if yes what are the conditions ?

      These are specified by the license. (Note: Some Qt modules are available under both the LGPL and GPL licenses; other modules are only available under the GPL license)

      How should I mention that I am using QT ?

      2 good places are:

      • In your software's documentation
      • In an "About" dialog that is popped up by the GUI. (This is often placed under the "Help" menu)
      • if i have to buy QT, can i really do whatever i want with the source code ?

      Yes, you can.

      Qt Doc Search for browsers: forum.qt.io/topic/35616/web-browser-extension-for-improved-doc-searches

      1 Reply Last reply
      2

      • Login

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