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Nanonote vs Buffer: catalog facts
Nanonote	Buffer
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under the GPL-3.0 or later licence.
Windows, macOS, Linux	Linux
Automatically saves text Available on Linux, macOS and Windows	Focused on temporary text rather than saved documents Native GNOME app
No synchronization or multiple documents Does not support images or advanced formatting	Not meant for keeping notes long term Linux only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-or-later
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 1, 2026

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