Software · Development

Qt QDBusViewer

Debug D-Bus applications.

Completely free
Linux
Open source

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Geographic availability: No geographic restriction found in our sources; availability is not checked country by country.

Technical details

Pricing: Completely freeconfirmed by Flathub
Excerpt from qt.io, read on 10 November 2026
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License: LGPL-3.0 — Open source (copyleft)confirmed by Flathub
Open source: Yes
Commercial use: Yesconfirmed by Official plan pages (pricing, licence, terms), Flathub
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: Qt Project
Latest version: 6.11 (23 March 2026)
Latest activity: 17 July 2026
Source code: code.qt.io/cgit/qt/qttools.git/tree/src/qdbus/qdbusviewer

At a glance

Qt QDBusViewer is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (LGPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Plans and conditions

The publisher also offers paid plans (hosting, support or services); they are described on its website.

Strengths

Open source code
Commercial use allowed

About

The Qt D-Bus Viewer is a tool that lets you introspect D-Bus objects and messages. You can choose between the system bus and the session bus.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Official plan pages (pricing, licence, terms) (limits, commercial use) — 10 November 2026
Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 8 November 2026
Description from Flathub — AppStream (Flathub)

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