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Eternal Terminal vs SSH3: catalog facts
Eternal Terminal	SSH3
Free Free and open source.	Free Free and open source under the Apache 2.0 licence.
Command line	Windows, Linux, Command line
Sessions survive network outages and IP changes Supports native scrolling and tmux control mode	Runs remote shell sessions over HTTP/3 and QUIC Backed by a published paper and an IETF Internet-Draft
Must be installed on both the client and the server Release notes on the site are old, so check the repository for current versions	Experimental research project, not a standard SSH replacement Last code change in September 2024
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: Apache-2.0
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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