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Tabby vs Serial: catalog facts
Tabby	Serial
Free Free and open source under the MIT licence.	Paid Costs $39.99 with a free trial and upgrade pricing for earlier owners.
Windows, macOS, Linux	macOS
Local shells, SSH, Telnet and serial connections in one program Encrypted container for SSH secrets and configuration	Built-in support for most serial adapters without installing drivers Hex view and hex send panel for binary device protocols
Electron, so start-up and memory use are well above a native terminal The plugin ecosystem is small	macOS only Paid licence after the trial
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License not stated
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 October 1, 2026

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