diff --git a/README.md b/README.md
index 34c1c69..c7c456a 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 A Rust-based comment server using SQLite and an intuitive REST API. Soudan is built with simplicity and static sites in mind.
 
+Soudan is available under the GNU General Public Licenese v3.0. The reference client JavaScript implementation and its associated files under the [demo](demo) directory is licensed under the MIT license so you can freely integrate it into your website. The server-side Soudan service executable is considered to be a standalone application separate from the website front-end, so it is free to be used in non-free sites.
+
 ## CLI usage
 
 See `soudan --help` for help information.
diff --git a/demo/LICENSE b/demo/LICENSE
new file mode 100644
index 0000000..8107b7f
--- /dev/null
+++ b/demo/LICENSE
@@ -0,0 +1,22 @@
+The MIT License (MIT)
+
+Copyright (c) 2023 Elnu
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.