Software · Customisation

Fcitx 5

Fcitx 5 is an on-screen keyboard, available on Linux.

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
License: LGPL-2.1+ — Open source (copyleft)confirmed by Flathub, Wikidata
Open source: Yes
Commercial use: Yesconfirmed by Flathub, Official plan pages (pricing, licence, terms)
Account required: not documented
Credit card required: Noconfirmed by Flathub
Watermark: Not applicable
Ads: not documented
Platforms: LinuxEstablished by Linux: Flathub
Publisher: The Fcitx Team
Latest version: 5.1.23 (23 September 2026)
Latest activity: 25 September 2026
Source code: github.com/fcitx/fcitx5

At a glance

All of Fcitx 5 is free: no feature is locked behind a paid plan, and its code is open.

Its licence (LGPL-2.1+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

Fcitx is an input method framework. It can help you to type your own language. It also features variant choice of addons that improve your typing experience.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, source code, publisher, licence, free status, platforms, commercial use, version) — 10 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 6 November 2026
Facts collected from Wikidata (licence, platforms) — 5 November 2026
Last technical check: 5 November 2026
Description from Flathub — AppStream (Flathub)

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