SafeNoter is free and open-source software, released under the GNU Affero General Public License, version 3 (AGPL-3.0), with one additional term described below.

Author

SafeNoter was created by Yurii Herych (yura.gerich@gmail.com).

What the AGPL-3.0 means for you

You may use, study, and run SafeNoter for any purpose, free of charge.
You may modify the source code and redistribute your modified version.
If you run a modified version as a network service — including a self-hosted installation — the AGPL-3.0 requires you to offer the corresponding source code of your modified version to everyone who interacts with it over the network. This closes the common “SaaS loophole” of the plain GPL and keeps modifications shared with the community, which is why AGPL was chosen for a self-hostable tool like this one.
SafeNoter comes with no warranty of any kind, including no guarantee that data saved via WEB mode on a self-hosted installation's server will be retained or remain available — see the “Help” section for details and for advice on regular local backups.

Additional term: author attribution (AGPL-3.0 §7(b))

The AGPL-3.0 explicitly permits copyright holders to add a small number of specific, limited additional terms (AGPL-3.0 Section 7). SafeNoter adds exactly one: the attribution below must be preserved in any copy, modified version, or deployment of SafeNoter — including self-hosted installations — whether or not you have otherwise modified or rebranded it:

SafeNoter — originally created by Yurii Herych (yura.gerich@gmail.com).

This notice must remain visible in this License screen (or its equivalent) and in the project's LICENSE file. It may not be removed, hidden, or altered. This is the only restriction added beyond the standard AGPL-3.0 — everything else about your freedom to use, modify, and self-host SafeNoter follows the AGPL-3.0 exactly as written.

Full legal text

The complete, verbatim license — the AGPL-3.0 together with the full wording of the additional attribution term — ships with SafeNoter as the LICENSE file in the project's root folder, and is also available from the Free Software Foundation at gnu.org/licenses/agpl-3.0.html.