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Clapper

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What Clapper is

Clapper is a free desktop video player for Linux and Windows, aimed at people who want essential playback controls in a simple interface. It is built for the GNOME desktop environment with GTK4 and uses GStreamer for playback. You can control playback speed and place multiple media files in a queue, then reorder or remove queue items by drag and drop. The project also provides Clapper and ClapperGtk libraries, with GObject Introspection support, Vala bindings in the repository, and linked Rust bindings. Their APIs are described as unstable until version 1.0, and both libraries use the LGPL-2.1-or-later license. Clapper can load libpeas enhancer plugins, including custom enhancers written in supported languages. Linux installation options include a Flatpak with dependencies and codecs, RPM packages marked unstable, or building with Meson. Questions are welcomed in Matrix, and translations are handled through Crowdin.

Who it suits

Clapper suits desktop users on Linux or Windows who want straightforward video playback, queue management, and speed control. Developers may also value its libraries, bindings, and enhancer plugin support.

What it does well

  • Free plan available
  • Runs on Linux and Windows
  • Queue items can be reordered by drag and drop
  • Playback speed control included
  • Flatpak includes dependencies and codecs

What to know first

  • Libraries’ APIs are unstable before version 1.0
  • RPM packages are considered unstable
  • Focused on essential playback features

Verdict

Clapper provides a simple desktop player with queue handling and playback-speed controls. Its Linux packaging, libraries, and plugin support add options for users and developers who need them.

Facts from Clapper's own pages

Desktop stack
The player is built for the GNOME desktop environment using GTK4 and is powered by GStreamer. · rafostar.github.io, 9 Oct 2026
Developer integrations
Both libraries support GObject Introspection bindings; Vala bindings are included in the repository and Rust bindings are linked from it. · github.com, 9 Oct 2026
Enhancers
Clapper supports libpeas-loaded enhancer plugins for adding capabilities beyond GStreamer, including custom enhancers written in languages supported by libpeas and Clapper bindings. · rafostar.github.io, 10 Oct 2026
Flatpak
The Flatpak package includes the required dependencies and codecs, and the maker says some functionality works better in that version because it includes patches. · rafostar.github.io, 10 Oct 2026
Hardware acceleration
The project thanks contributors for helping test V4L2 and NVDEC hardware acceleration methods. · github.com, 9 Oct 2026
Intended audience
The maker describes Clapper as a desktop video player for people who want essential video-player features in a simple form. · rafostar.github.io, 10 Oct 2026
Libraries
The application is built on Clapper, a playback library, and ClapperGtk, a GTK integration library; both support GObject Introspection bindings. · rafostar.github.io, 10 Oct 2026
Library license
The Clapper and ClapperGtk libraries are licensed under LGPL-2.1-or-later, and their API is described as unstable until version 1.0. · rafostar.github.io, 9 Oct 2026
Licensing
The Clapper and ClapperGtk libraries are licensed under LGPL-2.1-or-later, and their APIs are described as unstable until version 1.0. · rafostar.github.io, 10 Oct 2026
Other Linux packages
The maker lists pre-built RPM packages and an unofficial AppImage; RPM builds are made on each Git commit and are considered unstable. · github.com, 10 Oct 2026
Playback queue
Users can add multiple media files to a playback queue, then reorder or remove them with drag and drop. · rafostar.github.io, 10 Oct 2026
Purpose
Clapper is a modern media player designed for simplicity and ease of use. · rafostar.github.io, 10 Oct 2026
Source installation
The project documents building and installing from source with Meson. · rafostar.github.io, 9 Oct 2026
Support
The maker invites users to ask questions in the Clapper Matrix room. · rafostar.github.io, 10 Oct 2026
Technology
The player is powered by GStreamer and built for the GNOME desktop environment with GTK4. · rafostar.github.io, 10 Oct 2026
Translations
The project names Crowdin as its preferred translation method and says contributors can translate through a web browser. · rafostar.github.io, 9 Oct 2026

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