diff --git a/src/scripts/chat-autocomplete.js b/src/scripts/chat-autocomplete.js
new file mode 100644
index 0000000..536548f
--- /dev/null
+++ b/src/scripts/chat-autocomplete.js
@@ -0,0 +1,112 @@
+// Ensure jQuery is loaded
+if (typeof $ === 'undefined') {
+    console.error('jQuery is not loaded');
+} else {
+    console.log('jQuery is loaded');
+}
+
+// Listen for key events in the chat input field
+Hooks.on('renderChatLog', (app, html, data) => {
+    const inputField = html.find('textarea#chat-message');
+    if (inputField.length === 0) {
+        console.error('Chat input field not found');
+        return;
+    }
+    console.log('Chat input field found');
+
+    inputField.on('input', async (event) => {
+        const value = inputField.val();
+        const atIndex = value.lastIndexOf('@');
+        if (atIndex !== -1) {
+            const query = value.substring(atIndex + 1).toLowerCase();
+            const aliases = await getAllActorAliases();
+            const filteredAliases = aliases.filter(alias => alias.toLowerCase().startsWith(query));
+            showAutocompletePopup(inputField, filteredAliases);
+        } else {
+            $('.autocomplete-popup').remove();
+        }
+    });
+
+    // Close the popup if clicking outside of it
+    $(document).on('click', (event) => {
+        if (!$(event.target).closest('.autocomplete-popup').length && !$(event.target).is(inputField)) {
+            $('.autocomplete-popup').remove();
+        }
+    });
+});
+
+// Function to fetch all actor aliases
+async function getAllActorAliases() {
+    const actors = game.actors;
+    const aliases = await Promise.all(actors.map(async actor => {
+        return await actor.getFlag("unkenny", "alias");
+    }));
+    return aliases.filter(alias => alias); // Filter out null or undefined aliases
+}
+
+// Function to show the autocomplete popup
+function showAutocompletePopup(inputField, aliases) {
+    $('.autocomplete-popup').remove(); // Remove existing popup
+
+    if (aliases.length === 0) {
+        console.log('No aliases found');
+        return;
+    }
+
+    // Sort aliases alphabetically
+    aliases.sort((a, b) => a.toLowerCase().localeCompare(b.toLowerCase()));
+
+    // Create a popup element
+    const popup = $('<div class="autocomplete-popup"></div>');
+    popup.css({
+        background: 'white',
+        border: '1px black solid',
+        zIndex: 30,
+        maxHeight: '150px',
+        overflowY: 'auto',
+        boxShadow: '0 2px 5px rgba(0, 0, 0, 0.2)',
+        position: 'absolute',
+        width: inputField.outerWidth()
+    });
+
+    aliases.forEach((alias) => {
+        const item = $(`<div class="autocomplete-item">${alias}</div>`);
+        item.css({
+            padding: '5px',
+            cursor: 'pointer'
+        });
+        item.on('mouseenter', () => item.css({
+            backgroundColor: 'royalblue',
+            color: 'white'
+        }));
+        item.on('mouseleave', () => item.css({
+            backgroundColor: '',
+            color: ''
+        }));
+        item.on('click', () => {
+            selectAlias(inputField, alias);
+            inputField.focus(); // Refocus the input field after selection
+        });
+        popup.append(item);
+    });
+
+    // Position the popup relative to the bottom of the input field
+    const offset = inputField.offset();
+    const inputHeight = inputField.outerHeight();
+    popup.css({
+        left: offset.left,
+        bottom: $(window).height() - offset.top - inputHeight + 100 // Adjusted to position from the bottom with a small gap
+    });
+
+    // Append the popup to the body
+    $('body').append(popup);
+    console.log('Popup appended:', popup);
+}
+
+// Function to select an alias and insert it into the input field
+function selectAlias(inputField, alias) {
+    const value = inputField.val();
+    const atIndex = value.lastIndexOf('@');
+    inputField.val(value.substring(0, atIndex + 1) + alias + ' ');
+    $('.autocomplete-popup').remove();
+}
\ No newline at end of file
diff --git a/src/scripts/main.js b/src/scripts/main.js
index e09aa67..8a26845 100644
--- a/src/scripts/main.js
+++ b/src/scripts/main.js
@@ -3,6 +3,7 @@ import { getConversationWithFlagSync, overwriteChatMessage, removeAllMessagesFro
 import { registerGameParameters } from "./settings.js";
 import { adjustHtml } from "./chat-message-rendering.js";
 import { confirmationDialog } from "../apps/confirmation-dialogue.js";
+import './chat-autocomplete.js';
 
 // CONFIG.debug.hooks = true;