diff --git a/src/server/ServerManager.ts b/src/server/ServerManager.ts
index f4aa368..aac8c92 100644
--- a/src/server/ServerManager.ts
+++ b/src/server/ServerManager.ts
@@ -44,7 +44,7 @@ export class ServerManager extends EventEmitter {
   }
 
   getUrl(): string {
-    const encodedPath = btoa(this.projectDirectory);
+    const encodedPath = Buffer.from(this.projectDirectory).toString('base64');
     return `http://${this.settings.hostname}:${this.settings.port}/${encodedPath}`;
   }
 
diff --git a/tests/ServerManager.test.ts b/tests/ServerManager.test.ts
index 98d143f..6cf4c1b 100644
--- a/tests/ServerManager.test.ts
+++ b/tests/ServerManager.test.ts
@@ -89,7 +89,7 @@ describe("ServerManager", () => {
 
       const url = currentManager.getUrl();
       const expectedBase = `http://127.0.0.1:${port}`;
-      const expectedPath = btoa(PROJECT_DIR);
+      const expectedPath = Buffer.from(PROJECT_DIR).toString('base64');
 
       expect(url).toBe(`${expectedBase}/${expectedPath}`);
     });
@@ -285,4 +285,37 @@ describe("ServerManager", () => {
       expect(currentManager.getState()).toBe("stopped");
     });
   });
+
+  describe("Unicode path support", () => {
+    test("getUrl handles Chinese characters in project directory", () => {
+      const settings = createTestSettings(getNextPort());
+      const chinesePath = "C:/用户/Notes";
+      const manager = new ServerManager(settings, chinesePath);
+
+      const url = manager.getUrl();
+
+      expect(url).toContain("http://127.0.0.1:");
+      expect(url).toContain(Buffer.from(chinesePath).toString('base64'));
+    });
+
+    test("getUrl handles Japanese characters in project directory", () => {
+      const settings = createTestSettings(getNextPort());
+      const japanesePath = "/home/ユーザー/ノート";
+      const manager = new ServerManager(settings, japanesePath);
+
+      const url = manager.getUrl();
+
+      expect(url).toContain(Buffer.from(japanesePath).toString('base64'));
+    });
+
+    test("getUrl handles emoji in project directory", () => {
+      const settings = createTestSettings(getNextPort());
+      const emojiPath = "/home/user/📁Notes";
+      const manager = new ServerManager(settings, emojiPath);
+
+      const url = manager.getUrl();
+
+      expect(url).toContain(Buffer.from(emojiPath).toString('base64'));
+    });
+  });
 });