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GTKTerm vs Tabby: catalog facts
GTKTerm	Tabby
Free Free and open source.	Free Free and open source under the MIT licence.
Linux	Windows, macOS, Linux
Simple graphical interface Lightweight GTK application	Local shells, SSH, Telnet and serial connections in one program Encrypted container for SSH secrets and configuration
Linux only Serial connections only	Electron, so start-up and memory use are well above a native terminal The plugin ecosystem is small
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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