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Tabby vs Extraterm: catalog facts
Tabby	Extraterm
Free Free and open source under the MIT licence.	Free Free and open source under the MIT license.
Windows, macOS, Linux	Windows, macOS, Linux
Local shells, SSH, Telnet and serial connections in one program Encrypted container for SSH secrets and configuration	Frames each command's output with shell integration Built-in SSH client and images in the terminal
Electron, so start-up and memory use are well above a native terminal The plugin ecosystem is small	Output framing needs shell integration for bash, zsh or fish Still at a pre-1.0 version
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 24, 2026

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