diff --git a/keyboards/doio/kb03/keymaps/vial/config.h b/keyboards/doio/kb03/keymaps/vial/config.h
new file mode 100644
index 0000000000..b07dc742ce
--- /dev/null
+++ b/keyboards/doio/kb03/keymaps/vial/config.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#pragma once
+
+#define VIAL_KEYBOARD_UID {0xF5, 0x92, 0xBC, 0x63, 0x72, 0x84, 0xCA, 0x4E}
+#define VIAL_UNLOCK_COMBO_ROWS {0, 0}
+#define VIAL_UNLOCK_COMBO_COLS {0, 2}
diff --git a/keyboards/doio/kb03/keymaps/vial/keymap.c b/keyboards/doio/kb03/keymaps/vial/keymap.c
new file mode 100644
index 0000000000..79365003e3
--- /dev/null
+++ b/keyboards/doio/kb03/keymaps/vial/keymap.c
@@ -0,0 +1,44 @@
+// Copyright 2025 DOIO
+// Copyright 2025 ClownFish (@clownfish-og)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+enum my_layers {
+    _BASE,
+    _MOUSE,
+    _MEDIA,
+    _LIGHTS
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [_BASE] = LAYOUT(
+        TO(_MOUSE),
+        KC_ENT,  C(KC_C), C(KC_V),
+                 C(KC_Z)
+    ),
+    [_MOUSE] = LAYOUT(
+        TO(_MEDIA),
+        MS_BTN1, MS_BTN3, MS_BTN2,
+                 KC_LCTL
+    ),
+    [_MEDIA] = LAYOUT(
+        TO(_LIGHTS),
+        KC_MRWD, KC_MPLY, KC_MFFD,
+                 KC_MUTE
+    ),
+    [_LIGHTS] = LAYOUT(
+        TO(_BASE),
+        RM_VALD, RM_NEXT, RM_VALU,
+                 RM_TOGG
+    )
+};
+
+#ifdef ENCODER_MAP_ENABLE
+const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][NUM_DIRECTIONS] = {
+    [_BASE]   = { ENCODER_CCW_CW(MS_WHLU, MS_WHLD), ENCODER_CCW_CW(MS_WHLL, MS_WHLR) },
+    [_MOUSE]  = { ENCODER_CCW_CW(MS_LEFT, MS_RGHT), ENCODER_CCW_CW(MS_UP, MS_DOWN) },
+    [_MEDIA]  = { ENCODER_CCW_CW(KC_VOLD, KC_VOLU), ENCODER_CCW_CW(KC_MPRV, KC_MNXT) },
+    [_LIGHTS] = { ENCODER_CCW_CW(RM_SATD, RM_SATU), ENCODER_CCW_CW(RM_HUED, RM_HUEU) }
+};
+#endif
diff --git a/keyboards/doio/kb03/keymaps/vial/rules.mk b/keyboards/doio/kb03/keymaps/vial/rules.mk
new file mode 100644
index 0000000000..51d8828105
--- /dev/null
+++ b/keyboards/doio/kb03/keymaps/vial/rules.mk
@@ -0,0 +1,4 @@
+ENCODER_MAP_ENABLE = yes
+VIA_ENABLE = yes
+VIAL_ENABLE = yes
+VIALRGB_ENABLE = yes
diff --git a/keyboards/doio/kb03/keymaps/vial/vial.json b/keyboards/doio/kb03/keymaps/vial/vial.json
new file mode 100644
index 0000000000..d5fda4db1f
--- /dev/null
+++ b/keyboards/doio/kb03/keymaps/vial/vial.json
@@ -0,0 +1,52 @@
+{
+  "name": "KB03-01",
+  "vendorId": "0xD010",
+  "productId": "0x3011",
+  "lighting": "vialrgb",
+  "matrix": {"rows": 1, "cols": 5},
+  "layouts": {
+    "keymap": [
+      [
+        {
+          "x": 0.5,
+          "y": 0.25,
+          "h": 0.5
+        },
+        "0,3"
+      ],
+      [
+        "0,0",
+        "0,1",
+        "0,2"
+      ],
+      [
+        {
+          "y": 0.25,
+          "x": 0.5
+        },
+        "0,0\n\n\n\n\n\n\n\n\ne",
+        "0,1\n\n\n\n\n\n\n\n\ne"
+      ],
+      [
+        {
+          "x": 1
+        },
+        "0,4"
+      ],
+      [
+        {
+          "x": 0.25,
+          "y": 0.25,
+          "w": 1.25,
+          "h": 1.25
+        },
+        "1,0\n\n\n\n\n\n\n\n\ne",
+        {
+          "w": 1.25,
+          "h": 1.25
+        },
+        "1,1\n\n\n\n\n\n\n\n\ne"
+      ]
+    ]
+  }
+}