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Squirrel vs Fcitx 5: catalog facts
Squirrel	Fcitx 5
Free Free and open source, with optional donations to the developer.	Free Free and open source under the LGPL 2.1 or later.
macOS	Linux
Many Chinese input schemes, from Pinyin to Cangjie and Jyutping Custom input schemes can be written and shared	Supports many languages through numerous input engines Slim core extended with addons
Configuration is done through text files and takes some learning Documentation is mainly in Chinese	Linux and Unix only Setup involves installing separate engines and configuring the environment
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: LGPL-2.1-or-later
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.