diff -r 3ea9783cee39 -r 46418395c860 src/chat.js
--- a/src/chat.js	Sun Jul 13 14:38:52 2025 -0600
+++ b/src/chat.js	Mon Jul 14 00:49:11 2025 -0600
@@ -171,6 +171,23 @@
 	}
 }
 
+function openMute() {
+	ajax(`open_mute.js?chat=${currentChatId}`);
+}
+
+function doOpenMute(muted) {
+	let dialog = document.querySelector('dialog[mute]');
+	let checkbox = dialog.querySelector('input');
+	checkbox.checked = muted;
+	openModal(dialog);
+}
+
+function saveMute(el) {
+	let muted = document.querySelector('dialog[mute] input').checked;
+	closeModal(el);
+	ajax(`save_mute.js?chat=${currentChatId}&muted=${muted}`);
+}
+
 function active() {
 	let url = 'active.js';
 	if( currentChatId )

diff -r 3ea9783cee39 -r 46418395c860 src/get_chat.js.luan
--- a/src/get_chat.js.luan	Sun Jul 13 14:38:52 2025 -0600
+++ b/src/get_chat.js.luan	Mon Jul 14 00:49:11 2025 -0600
@@ -61,6 +61,7 @@
 			<img onclick="clickMenu(this)" src="/images/menu.svg">
 			<div>
 				<span onclick="openPeople()">People in Chat</span>
+				<span onclick="openMute()">Mute Chat</span>
 				<span onclick="openAddToChat()">Add Someone to Chat</span>
 				<span onclick="deleteChat()">Delete Chat</span>
 			</div>

diff -r 3ea9783cee39 -r 46418395c860 src/index.html.luan
--- a/src/index.html.luan	Sun Jul 13 14:38:52 2025 -0600
+++ b/src/index.html.luan	Mon Jul 14 00:49:11 2025 -0600
@@ -125,6 +125,16 @@
 				</div>
 			</form>
 		</dialog>
+		<dialog mute>
+			<h2>Mute Chat</h2>
+			<p>
+				<label clickable><input type=checkbox name=mute> Mute notification</label>
+			</p>
+			<div buttons>
+				<button type=button onclick="closeModal(this)">Cancel</button>
+				<button onclick="saveMute(this)">Save</button>
+			</div>
+		</dialog>
 		<input type="file" required onchange="loadedFile(this)">
 		<script>
 			'use strict';

diff -r 3ea9783cee39 -r 46418395c860 src/lib/Chat.luan
--- a/src/lib/Chat.luan	Sun Jul 13 14:38:52 2025 -0600
+++ b/src/lib/Chat.luan	Mon Jul 14 00:49:11 2025 -0600
@@ -11,6 +11,9 @@
 local run_in_transaction = Db.run_in_transaction or error()
 local Utils = require "site:/lib/Utils.luan"
 local base_url = Utils.base_url or error()
+local set_to_list = Utils.set_to_list or error()
+local list_to_set = Utils.list_to_set or error()
+local to_list = Utils.to_list or error()
 
 
 local Chat = {}
@@ -22,6 +25,7 @@
 		user_ids = doc.chat_user_ids
 		updated = doc.chat_updated
 		key = doc.chat_key
+		mute_ids = list_to_set(to_list(doc.mute_ids))
 	}
 end
 
@@ -32,6 +36,7 @@
 		chat_user_ids = chat.user_ids or error()
 		chat_updated = chat.updated or error()
 		chat_key = chat.key or error()
+		mute_ids = set_to_list(chat.mute_ids)
 	}
 end
 
@@ -44,6 +49,7 @@
 function Chat.new(chat)
 	chat.updated = chat.updated or time_now()
 	chat.key = chat.key or get_chat_key(chat.user_ids)
+	chat.mute_ids = chat.mute_ids or list_to_set{}
 
 	function chat.save()
 		local doc = to_doc(chat)
@@ -51,6 +57,10 @@
 		chat.id = doc.id
 	end
 
+	function chat.reload()
+		return Chat.get_by_id(chat.id) or error(chat.id)
+	end
+
 	function chat.delete()
 		run_in_transaction( function()
 			local id = chat.id

diff -r 3ea9783cee39 -r 46418395c860 src/lib/Notify.luan
--- a/src/lib/Notify.luan	Sun Jul 13 14:38:52 2025 -0600
+++ b/src/lib/Notify.luan	Mon Jul 14 00:49:11 2025 -0600
@@ -38,11 +38,15 @@
 	local users = {}
 	local fns = {}
 
-	function fns.add(user_ids)
+	function fns.add(user_ids,mute_ids)
 		local now = time_now()
 		for _, user_id in ipairs(user_ids) do
 			local user = get_user_by_id(user_id)
-			if users[user_id] == nil and user.notify_email ~= nil and (user.multi_notify or not user.was_notified) then
+			if users[user_id] == nil \
+				and user.notify_email ~= nil \
+				and not mute_ids[user_id] \
+				and (user.multi_notify or not user.was_notified) \
+			then
 				users[user_id] = now
 				-- logger.info("add "..user_id)
 			end
@@ -88,7 +92,7 @@
 
 function Notify.add(chat)
 	Thread.run(function()
-		glob.add(chat.user_ids)
+		glob.add(chat.user_ids,chat.mute_ids)
 	end)
 end
 

diff -r 3ea9783cee39 -r 46418395c860 src/open_mute.js.luan
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/open_mute.js.luan	Mon Jul 14 00:49:11 2025 -0600
@@ -0,0 +1,20 @@
+local Luan = require "luan:Luan.luan"
+local error = Luan.error
+local Parsers = require "luan:Parsers.luan"
+local json_string = Parsers.json_string or error()
+local Io = require "luan:Io.luan"
+local Http = require "luan:http/Http.luan"
+local Chat = require "site:/lib/Chat.luan"
+local get_chat_by_id = Chat.get_by_id or error()
+local User = require "site:/lib/User.luan"
+local current_user = User.current or error()
+
+return function()
+	local chat = Http.request.parameters.chat or error()
+	chat = get_chat_by_id(chat) or error()
+	local user = current_user() or error()
+	Io.stdout = Http.response.text_writer()
+%>
+	doOpenMute(<%=chat.mute_ids[user.id]%>);
+<%
+end

diff -r 3ea9783cee39 -r 46418395c860 src/save_mute.js.luan
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/save_mute.js.luan	Mon Jul 14 00:49:11 2025 -0600
@@ -0,0 +1,26 @@
+local Luan = require "luan:Luan.luan"
+local error = Luan.error
+local Io = require "luan:Io.luan"
+local Http = require "luan:http/Http.luan"
+local Chat = require "site:/lib/Chat.luan"
+local get_chat_by_id = Chat.get_by_id or error()
+local Db = require "site:/lib/Db.luan"
+local run_in_transaction = Db.run_in_transaction or error()
+local Chat = require "site:/lib/Chat.luan"
+local get_chat_by_id = Chat.get_by_id or error()
+local User = require "site:/lib/User.luan"
+local current_user = User.current or error()
+
+
+return function()
+	local chat = Http.request.parameters.chat or error()
+	local muted = Http.request.parameters.muted or error()
+	chat = get_chat_by_id(chat) or error()
+	local user_ids = chat.user_ids
+	local user = current_user() or error()
+	run_in_transaction( function()
+		chat = chat.reload()
+		chat.mute_ids[user.id] = muted=="true"
+		chat.save()
+	end )
+end