Licenses and notices
Personal use
Letter Jam is for personal use only. You may play it, and play it with friends. It is not to be published, hosted for the public, or used commercially, unless the copyright holder gives written permission.
Letter Jam is provided "as is", without warranty of any kind.
The project's own code
Copyright (c) 2026 Alon Altman. All rights reserved. The full terms are in the LICENSE file.
Third-party components
The game uses open-source components under their own licenses: the Firebase SDK (Apache-2.0), jQuery and jQuery UI, Bootstrap, Popper.js, SortableJS and Bootstrap Icons (MIT), the Nunito font (SIL Open Font License 1.1), and the SCOWL word lists. Their copyright notices and license texts are in the project's THIRD_PARTY_NOTICES.md.
Apache-licensed code
Some early code in the project's history was adapted from Google's Friendly Chat codelab, Copyright 2015 Google Inc., under the Apache License, Version 2.0. That code keeps its Apache-2.0 license. See the NOTICE file.