diff --git a/src/components/AnnotationModal.tsx b/src/components/AnnotationModal.tsx
index 90cdf5c3..df7b20f2 100644
--- a/src/components/AnnotationModal.tsx
+++ b/src/components/AnnotationModal.tsx
@@ -4,6 +4,7 @@ import { useCallback, useEffect, useRef, useState } from "react";
 import { Stage, Layer, Image as KonvaImage, Rect, Ellipse, Arrow, Line, Text, Transformer } from "react-konva";
 import { useAnnotationStore } from "@/store/annotationStore";
 import { useWorkflowStore } from "@/store/workflowStore";
+import { useI18n } from "@/i18n";
 import {
   AnnotationShape,
   RectangleShape,
@@ -29,6 +30,7 @@ const COLORS = [
 const STROKE_WIDTHS = [2, 4, 8];
 
 export function AnnotationModal() {
+  const { t } = useI18n();
   const {
     isModalOpen,
     sourceNodeId,
@@ -400,12 +402,12 @@ export function AnnotationModal() {
   if (!isModalOpen) return null;
 
   const tools: { type: ToolType; label: string }[] = [
-    { type: "select", label: "Select" },
-    { type: "rectangle", label: "Rect" },
-    { type: "circle", label: "Circle" },
-    { type: "arrow", label: "Arrow" },
-    { type: "freehand", label: "Draw" },
-    { type: "text", label: "Text" },
+    { type: "select", label: t("annotation.tool.select") },
+    { type: "rectangle", label: t("annotation.tool.rectangle") },
+    { type: "circle", label: t("annotation.tool.circle") },
+    { type: "arrow", label: t("annotation.tool.arrow") },
+    { type: "freehand", label: t("annotation.tool.draw") },
+    { type: "text", label: t("annotation.tool.text") },
   ];
 
   return (
@@ -429,20 +431,20 @@ export function AnnotationModal() {
 
           <div className="w-px h-6 bg-neutral-700 mx-3" />
 
-          <button onClick={undo} className="px-3 py-1.5 text-xs text-neutral-400 hover:text-white">Undo</button>
-          <button onClick={redo} className="px-3 py-1.5 text-xs text-neutral-400 hover:text-white">Redo</button>
+          <button onClick={undo} className="px-3 py-1.5 text-xs text-neutral-400 hover:text-white">{t("annotation.undo")}</button>
+          <button onClick={redo} className="px-3 py-1.5 text-xs text-neutral-400 hover:text-white">{t("annotation.redo")}</button>
 
           <div className="w-px h-6 bg-neutral-700 mx-3" />
 
-          <button onClick={clearAnnotations} className="px-3 py-1.5 text-xs text-neutral-400 hover:text-red-400">Clear</button>
+          <button onClick={clearAnnotations} className="px-3 py-1.5 text-xs text-neutral-400 hover:text-red-400">{t("annotation.clear")}</button>
         </div>
 
         <div className="flex items-center gap-3">
           <button onClick={closeModal} className="px-4 py-1.5 text-xs font-medium text-neutral-400 hover:text-white">
-            Cancel
+            {t("annotation.cancel")}
           </button>
           <button onClick={handleDone} className="px-4 py-1.5 text-xs font-medium bg-white text-neutral-900 rounded hover:bg-neutral-200">
-            Done
+            {t("annotation.done")}
           </button>
         </div>
       </div>
@@ -478,7 +480,7 @@ export function AnnotationModal() {
       <div className="h-14 bg-neutral-900 flex items-center justify-center gap-6 px-4 border-t border-neutral-800">
         {/* Colors */}
         <div className="flex items-center gap-2">
-          <span className="text-[10px] text-neutral-500 uppercase tracking-wide mr-1">Color</span>
+          <span className="text-[10px] text-neutral-500 uppercase tracking-wide mr-1">{t("annotation.color")}</span>
           {COLORS.map((color) => (
             <button
               key={color}
@@ -495,7 +497,7 @@ export function AnnotationModal() {
 
         {/* Stroke Width */}
         <div className="flex items-center gap-2">
-          <span className="text-[10px] text-neutral-500 uppercase tracking-wide mr-1">Size</span>
+          <span className="text-[10px] text-neutral-500 uppercase tracking-wide mr-1">{t("annotation.size")}</span>
           {STROKE_WIDTHS.map((width) => (
             <button
               key={width}
@@ -518,7 +520,7 @@ export function AnnotationModal() {
             toolOptions.fillColor ? "bg-neutral-700 text-white" : "text-neutral-500 hover:text-white"
           }`}
         >
-          Fill
+          {t("annotation.fill")}
         </button>
 
         {/* Zoom */}
diff --git a/src/components/FloatingActionBar.tsx b/src/components/FloatingActionBar.tsx
index 60bc39c7..166aa1e1 100644
--- a/src/components/FloatingActionBar.tsx
+++ b/src/components/FloatingActionBar.tsx
@@ -556,7 +556,7 @@ export function FloatingActionBar() {
         <div className="h-px w-7 bg-neutral-700 my-1" />
         <button
           onClick={() => setModelSearchOpen(true)}
-          title="Browse models"
+          title={t("toolbar.browseModels")}
           aria-label={t("toolbar.allModels")}
           className="flex h-12 w-12 items-center justify-center rounded-lg text-neutral-300 transition-colors hover:bg-neutral-700 hover:text-neutral-100"
         >
diff --git a/src/components/__tests__/FloatingActionBar.test.tsx b/src/components/__tests__/FloatingActionBar.test.tsx
index 4295500d..4bf73741 100644
--- a/src/components/__tests__/FloatingActionBar.test.tsx
+++ b/src/components/__tests__/FloatingActionBar.test.tsx
@@ -368,7 +368,7 @@ describe("FloatingActionBar", () => {
   });
 
   describe("Browse Models Button", () => {
-    it("should render All models button with Browse models title", async () => {
+    it("should render All models button with localized Browse Models title", async () => {
       render(
         <TestWrapper>
           <FloatingActionBar />
@@ -376,7 +376,7 @@ describe("FloatingActionBar", () => {
       );
 
       await waitFor(() => {
-        expect(screen.getByTitle("Browse models")).toBeInTheDocument();
+        expect(screen.getByTitle("Browse Models")).toBeInTheDocument();
         expect(screen.getByText("All models")).toBeInTheDocument();
       });
     });
diff --git a/src/i18n/index.tsx b/src/i18n/index.tsx
index 66133d75..c2285b1e 100644
--- a/src/i18n/index.tsx
+++ b/src/i18n/index.tsx
@@ -160,6 +160,20 @@ const en = {
   "node.generateAudio": "Generate Audio",
   "node.llmGenerate": "LLM Generate",
   "node.annotation": "Annotate",
+  "annotation.tool.select": "Select",
+  "annotation.tool.rectangle": "Rect",
+  "annotation.tool.circle": "Circle",
+  "annotation.tool.arrow": "Arrow",
+  "annotation.tool.draw": "Draw",
+  "annotation.tool.text": "Text",
+  "annotation.undo": "Undo",
+  "annotation.redo": "Redo",
+  "annotation.clear": "Clear",
+  "annotation.cancel": "Cancel",
+  "annotation.done": "Done",
+  "annotation.color": "Color",
+  "annotation.size": "Size",
+  "annotation.fill": "Fill",
   "node.splitGrid": "Split Grid",
   "node.videoStitch": "Video Stitch",
   "node.videoTrim": "Video Trim",
@@ -587,6 +601,20 @@ const zhCN: Dictionary = {
   "node.generateAudio": "生成音频",
   "node.llmGenerate": "LLM 生成",
   "node.annotation": "标注",
+  "annotation.tool.select": "选择",
+  "annotation.tool.rectangle": "矩形",
+  "annotation.tool.circle": "圆形",
+  "annotation.tool.arrow": "箭头",
+  "annotation.tool.draw": "画笔",
+  "annotation.tool.text": "文字",
+  "annotation.undo": "撤销",
+  "annotation.redo": "重做",
+  "annotation.clear": "清空",
+  "annotation.cancel": "取消",
+  "annotation.done": "完成",
+  "annotation.color": "颜色",
+  "annotation.size": "大小",
+  "annotation.fill": "填充",
   "node.splitGrid": "拆分网格",
   "node.videoStitch": "视频拼接",
   "node.videoTrim": "视频裁剪",
@@ -1004,6 +1032,20 @@ const zhTW: Dictionary = {
   "node.generateVideo": "生成影片",
   "node.generateAudio": "生成音訊",
   "node.annotation": "標註",
+  "annotation.tool.select": "選擇",
+  "annotation.tool.rectangle": "矩形",
+  "annotation.tool.circle": "圓形",
+  "annotation.tool.arrow": "箭頭",
+  "annotation.tool.draw": "繪製",
+  "annotation.tool.text": "文字",
+  "annotation.undo": "復原",
+  "annotation.redo": "重做",
+  "annotation.clear": "清除",
+  "annotation.cancel": "取消",
+  "annotation.done": "完成",
+  "annotation.color": "顏色",
+  "annotation.size": "大小",
+  "annotation.fill": "填充",
   "node.outputGallery": "輸出圖庫",
   "node.settings": "設定",
   "node.runToGenerate": "執行以生成",
@@ -1305,6 +1347,20 @@ const ja: Dictionary = {
   "node.generateAudio": "音声生成",
   "node.llmGenerate": "LLM 生成",
   "node.annotation": "注釈",
+  "annotation.tool.select": "選択",
+  "annotation.tool.rectangle": "矩形",
+  "annotation.tool.circle": "円形",
+  "annotation.tool.arrow": "矢印",
+  "annotation.tool.draw": "描画",
+  "annotation.tool.text": "テキスト",
+  "annotation.undo": "元に戻す",
+  "annotation.redo": "やり直し",
+  "annotation.clear": "クリア",
+  "annotation.cancel": "キャンセル",
+  "annotation.done": "完了",
+  "annotation.color": "色",
+  "annotation.size": "サイズ",
+  "annotation.fill": "塗りつぶし",
   "node.splitGrid": "グリッド分割",
   "node.videoStitch": "動画結合",
   "node.videoTrim": "動画トリム",