diff --git a/src/static/devices.js b/src/static/devices.js
index 6a97acb..5f7541b 100644
--- a/src/static/devices.js
+++ b/src/static/devices.js
@@ -76,6 +76,13 @@ function normalizeDeviceMacKey(mac) {
         .replace(/[:-]/g, '');
 }
 
+function normalizeMacInput(raw) {
+    return String(raw || '')
+        .trim()
+        .toLowerCase()
+        .replace(/[:-]/g, '');
+}
+
 function findPingResponse(responses, deviceId) {
     if (!responses || typeof responses !== 'object') return null;
     const want = normalizeDeviceMacKey(deviceId);
@@ -430,6 +437,69 @@ async function loadDevicesModal() {
     }
 }
 
+async function createDeviceFromModal() {
+    const nameEl = document.getElementById('devices-add-name');
+    const trEl = document.getElementById('devices-add-transport');
+    const macEl = document.getElementById('devices-add-mac');
+    const addrEl = document.getElementById('devices-add-address');
+    const statusEl = document.getElementById('devices-add-status');
+    const btn = document.getElementById('devices-add-btn');
+    const name = (nameEl && nameEl.value.trim()) || '';
+    const transport = (trEl && trEl.value) || 'espnow';
+    const mac = normalizeMacInput(macEl && macEl.value);
+    const address = (addrEl && addrEl.value.trim()) || '';
+
+    if (!name) {
+        if (statusEl) statusEl.textContent = 'Name is required';
+        return;
+    }
+    if (mac.length !== 12) {
+        if (statusEl) statusEl.textContent = 'MAC must be 12 hex characters';
+        return;
+    }
+    if (transport === 'wifi' && !address) {
+        if (statusEl) statusEl.textContent = 'Address is required for Wi-Fi devices';
+        return;
+    }
+
+    if (btn) {
+        btn.disabled = true;
+        btn.textContent = 'Adding…';
+    }
+    if (statusEl) statusEl.textContent = 'Creating device…';
+    try {
+        const payload = {
+            name,
+            transport,
+            type: 'led',
+            mac,
+            address: transport === 'wifi' ? address : mac,
+        };
+        const res = await fetch('/devices', {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
+            body: JSON.stringify(payload),
+        });
+        const data = await res.json().catch(() => ({}));
+        if (!res.ok) {
+            if (statusEl) statusEl.textContent = data.error || 'Create failed';
+            return;
+        }
+        if (statusEl) statusEl.textContent = 'Device added';
+        if (nameEl) nameEl.value = '';
+        if (macEl) macEl.value = '';
+        if (addrEl) addrEl.value = '';
+        await loadDevicesModal();
+    } catch (e) {
+        if (statusEl) statusEl.textContent = e.message || 'Create failed';
+    } finally {
+        if (btn) {
+            btn.disabled = false;
+            btn.textContent = 'Add device';
+        }
+    }
+}
+
 function renderDevicesList(devices) {
     const container = document.getElementById('devices-list-modal');
     if (!container) return;
@@ -750,6 +820,9 @@ document.addEventListener('DOMContentLoaded', () => {
     const editForm = document.getElementById('edit-device-form');
     const editCloseBtn = document.getElementById('edit-device-close-btn');
     const editDeviceModal = document.getElementById('edit-device-modal');
+    const addTransport = document.getElementById('devices-add-transport');
+    const addAddress = document.getElementById('devices-add-address');
+    const addBtn = document.getElementById('devices-add-btn');
 
     if (devicesBtn && devicesModal) {
         devicesBtn.addEventListener('click', () => {
@@ -768,6 +841,17 @@ document.addEventListener('DOMContentLoaded', () => {
         });
     }
 
+    if (addTransport && addAddress) {
+        const syncAddAddress = () => {
+            addAddress.hidden = addTransport.value !== 'wifi';
+        };
+        addTransport.addEventListener('change', syncAddAddress);
+        syncAddAddress();
+    }
+    if (addBtn) {
+        addBtn.addEventListener('click', () => createDeviceFromModal());
+    }
+
     const devicesPingBtn = document.getElementById('devices-ping-btn');
     if (devicesPingBtn) {
         devicesPingBtn.addEventListener('click', () => {
diff --git a/src/templates/index.html b/src/templates/index.html
index a805308..b709317 100644
--- a/src/templates/index.html
+++ b/src/templates/index.html
@@ -166,6 +166,19 @@
     <div id="devices-modal" class="modal">
         <div class="modal-content">
             <h2>Devices</h2>
+            <div class="form-group" style="margin-bottom:0.75rem;">
+                <div class="profiles-actions" style="gap:0.5rem;flex-wrap:wrap;">
+                    <input type="text" id="devices-add-name" placeholder="Device name" autocomplete="off" style="min-width:10rem;">
+                    <select id="devices-add-transport">
+                        <option value="espnow">ESP-NOW</option>
+                        <option value="wifi">Wi-Fi</option>
+                    </select>
+                    <input type="text" id="devices-add-mac" placeholder="MAC (12 hex)" autocomplete="off" style="min-width:10rem;">
+                    <input type="text" id="devices-add-address" placeholder="Address (IP/host for Wi-Fi)" autocomplete="off" style="min-width:12rem;" hidden>
+                    <button type="button" class="btn btn-primary btn-small" id="devices-add-btn">Add device</button>
+                </div>
+                <small id="devices-add-status" class="muted-text" aria-live="polite"></small>
+            </div>
             <div id="devices-list-modal" class="profiles-list"></div>
             <div class="modal-actions" style="align-items:center;gap:0.75rem;flex-wrap:wrap;">
                 <button type="button" class="btn btn-secondary" id="devices-ping-btn" title="ESP-NOW broadcast ping (3 s)">Ping drivers</button>