Compare software

tio vs SimplySerial: catalog facts
tio	SimplySerial
Free Free and open source.	Free Free and open source under the MIT licence.
Linux, Command line	Windows, Command line
Simple to start with a single command Works entirely in the terminal	Runs directly in a Windows console window Quick way to open a serial connection
Command line only, no graphical interface Only for serial connections, not SSH or Telnet	Windows only Basic feature set compared with full serial terminal programs
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 October 2, 2026

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