Diodon

Free plan Linux

What Diodon is

Diodon is a free, open-source clipboard manager for Linux that aims to integrate with the Unity desktop. It records clipboard history through Zeitgeist, which normally stores events in an on-disk database that remains after reboot. Setting `ZEITGEIST_DATABASE_PATH` to `:memory:` switches storage to memory. Available plugins add menu features for counting clipboard entries, pasting and removing an item, pasting recent items together, and editing the active item. Ubuntu-based distributions can use the project’s stable PPA, while other systems can obtain release tarballs through Launchpad. The documented build process uses Meson and Ninja. The maintainer describes Diodon as low maintenance, with packaging, translation updates, and security issues still addressed. Wayland support is partial. The project uses GTK3 and Zeitgeist, which the maintainer says is no longer really developed. Version 1.14.0 included translation updates, cross-building, improved Meson compatibility, and better performance with large clipboard items. It is intended to remain in Debian and Ubuntu repositories.

Who it suits

Diodon suits Linux desktop users who want clipboard history and Unity-oriented integration, including users comfortable with open-source software and optional plugins.

What it does well

Free and open source under GPL-2.0
Clipboard history persists across reboots
In-memory storage can be configured
Plugins add paste and editing actions
Ubuntu users have an official stable PPA

What to know first

Only partial Wayland support
Project is in low maintenance mode
Zeitgeist is no longer really developed
Linux is the supported platform

Plans

Plan	Billed and limits	Price
Free and open source	Linux desktop clipboard manager · GPL-2.0	Free

As github.com lists them, read 5 Oct 2026. The maker's own page has the final word.

Verdict

Diodon offers straightforward clipboard history with configurable storage and plugins at no cost. Its partial Wayland support and aging Zeitgeist dependency matter when choosing it for a newer Linux desktop.

Facts from Diodon's own pages

Availability: The maintainer says Diodon is intended to remain in Debian and Ubuntu repositories through packaging maintenance. · esite.ch, 5 Oct 2026
Build: Diodon uses Meson and the README documents building and installing it with Ninja. · github.com, 5 Oct 2026
Clipboard history: Diodon uses Zeitgeist to store clipboard items, which by default persists events in a database on disk across reboots. · github.com, 5 Oct 2026
Installation: The project provides an official stable PPA for Ubuntu based distributions and release tarballs through Launchpad for other systems. · github.com, 5 Oct 2026
Maintenance: The project is in low maintenance mode, with packaging, translation updates, and security issues listed as the areas still addressed. · github.com, 5 Oct 2026
Memory storage: The README says users can set ZEITGEIST_DATABASE_PATH to :memory: to store clipboard items in memory. · github.com, 5 Oct 2026
Plugins: Listed plugins add menu features, number clipboard items, paste and remove an item, paste all recent items, and edit the active item. · github.com, 5 Oct 2026
Purpose: Diodon is a clipboard manager aiming to integrate with the Unity desktop. · github.com, 5 Oct 2026
Recent release: The maintainer announced version 1.14.0 with updated translations, cross building, improved Meson compatibility, and better performance with large clipboard items. · esite.ch, 5 Oct 2026
Support: The README directs users to Launchpad to discuss the project or report bugs. · github.com, 5 Oct 2026
Technology limits: The maintainer says Diodon is based on GTK3 and relies on Zeitgeist, which is not really developed anymore. · esite.ch, 5 Oct 2026
Wayland: The maintainer says Diodon has only partial Wayland support. · esite.ch, 5 Oct 2026

Where Diodon stands on Freedom251

Clipboard Manager Software#20 of 39
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