diff --git a/README.md b/README.md
index c64d8b5..67c20a3 100644
--- a/README.md
+++ b/README.md
@@ -479,6 +479,19 @@ Output text
 ### D2 Refiner Steps Tester
   - A node for checking steps
 
+
+### Prompt convert dialog
+
+<img src="./img/prompt_convert_dialog.png">
+
+- Dialog for converting weights between NovelAI and StableDiffusion formats
+- Open from the `Prompt convert` button
+- Hidden by default
+- Enable `settings > D2 > Show prompt convert button` to display
+
+
+
+
 ## :card_index_dividers: Sample Workflow
 You can recreate the workflow by dropping the image into ComfyUI.
 
@@ -514,6 +527,7 @@ In the custom_nodes folder, `git clone`
 
 **2024.10.28**
 
+- Prompt convert: Added a dialog for converting prompts between NovelAI and StableDiffusion formats
 - D2 Folder Image Queue: Fixed a bug where the number of generated images was not consistent
 
 **2024.10.26**
diff --git a/README_ja.md b/README_ja.md
index f85ff8f..00fa893 100644
--- a/README_ja.md
+++ b/README_ja.md
@@ -480,6 +480,21 @@ Output text
 
 - steps を確認するためのノード
 
+
+
+### Prompt convert dialog
+
+<img src="./img/prompt_convert_dialog.png">
+
+- NovelAI と StableDiffusion の weight を相互変換するダイアログ
+- `Prompt convert` ボタンから開く
+- 初期状態では非表示になっている
+- `settings > D2 > Show prompt convert button` を有効にすると表示する
+
+
+
+
+
 ## :card_index_dividers: Sample Workflow
 
 画像を ComfyUI にドロップするとワークフローを再現できます。
@@ -522,6 +537,7 @@ custom_nodes フォルダで `git clone` する
 
 **2024.10.28**
 
+- Prompt convert: NovelAI と StableDiffusion のプロンプトを相互変換するダイアログを追加
 - D2 Folder Image Queue: 画像生成枚数が同じにならない不具合を修正
 
 **2024.10.26**
diff --git a/README_zh.md b/README_zh.md
index d08b744..2ca4715 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -476,6 +476,18 @@ Output text
 ### D2 Refiner Steps Tester
   - 用於確認步數的節點
 
+
+### Prompt convert dialog
+
+<img src="./img/prompt_convert_dialog.png">
+
+- 提供 NovelAI 和 StableDiffusion 權重（weight）互相轉換的對話框
+- 從 `Prompt convert` 按鈕開啟
+- 預設為隱藏狀態
+- 啟用 `settings > D2 > Show prompt convert button` 後即可顯示
+
+
+
 ## :card_index_dividers: 示例工作流程
 將圖像拖放到 ComfyUI 中可以重現工作流程。
 
@@ -511,6 +523,7 @@ ComfyUI Manager → Custom Node Manager → 搜索 `D2 Nodes` 並安裝
 
 **2024.10.28**
 
+- Prompt convert: 新增 NovelAI 和 StableDiffusion 提示詞（prompt）互相轉換的對話框
 - D2 Folder Image Queue: 修復生成圖片數量不一致的錯誤
 
 **2024.10.26**
diff --git a/img/prompt_convert_dialog.png b/img/prompt_convert_dialog.png
new file mode 100644
index 0000000..5ca78ff
Binary files /dev/null and b/img/prompt_convert_dialog.png differ
diff --git a/pyproject.toml b/pyproject.toml
index 0d13918..3867a81 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "d2-nodes-comfyui"
 description = "This is a collection of custom nodes that make ComfyUI slightly more convenient."
-version = "1.8.1"
+version = "1.9.1"
 license = {file = "LICENSE"}
 
 [project.urls]
diff --git a/web/D2_FloatContainer.js b/web/D2_FloatContainer.js
index df8b859..4b9353a 100644
--- a/web/D2_FloatContainer.js
+++ b/web/D2_FloatContainer.js
@@ -19,7 +19,6 @@ class D2_FloatContainer {
 
         // 初期位置
         const pos = this._getPosition(default_left, default_top);
-        console.log("constructor", pos);
         this.container.style.left = pos[0] + "px";
         this.container.style.top = pos[1] + "px";
 
@@ -94,7 +93,6 @@ class D2_FloatContainer {
     _getPosition(default_left, default_top) {
         const cookieName = `${this.cookieNameBase}_pos`;
         const cookieValue = getCookie(cookieName);
-        console.log("_getPosition", cookieName, cookieValue);
         return cookieValue !== undefined ? cookieValue : [default_left, default_top];
     }
 
diff --git a/web/D2_PromptConverDialog.js b/web/D2_PromptConverDialog.js
new file mode 100644
index 0000000..ec3c8b2
--- /dev/null
+++ b/web/D2_PromptConverDialog.js
@@ -0,0 +1,246 @@
+import { app } from "../../scripts/app.js";
+import { D2_FloatContainer } from "./D2_FloatContainer.js";
+import { loadCssFile } from "./utils.js";
+
+
+/**
+ * プロンプト変換
+ */
+
+class D2_PromptConvert {
+  static RATE = 1.05;
+
+  /**
+   * StableDiffusionのweightをNAI方式に変換
+   */
+  static convertToNai(srcPrompt) {
+      const tempPrompt = srcPrompt.replace(/\n/g, '');
+      const convertedPrompt = tempPrompt.replace(/\([^)]+:\s*[0-9.]+\s*\)/g, D2_PromptConvert.$_convertToNai);
+      return convertedPrompt;
+  }
+
+  static $_convertToNai(prompt) {
+      const parts = prompt.substring(1, prompt.length - 1).split(':');
+      const text = parts.slice(0, -1).join(':').trim();
+      const weightStr = parts[parts.length - 1].trim();
+      const weight = parseFloat(weightStr);
+      const n = Math.round(Math.log(weight) / Math.log(D2_PromptConvert.RATE));
+      const count = Math.abs(n);
+
+      let openBra, closeBra;
+      if (weight < 1) {
+          openBra = '[';
+          closeBra = ']';
+      } else {
+          openBra = '{';
+          closeBra = '}';
+      }
+
+      return openBra.repeat(count) + text + closeBra.repeat(count);
+  }
+
+  /**
+   * NAIのweightをStableDiffusion方式に変換
+   */
+  static convertToSd(srcPrompt) {
+      let tempPrompt = srcPrompt.replace(/\n/g, '');
+      let convertedPrompt = tempPrompt.replace(/[\[{]+[^\]}]+[\]}]+/g, D2_PromptConvert.$_convertToSd);
+      return convertedPrompt;
+  }
+
+  static $_convertToSd(prompt) {
+      const braType = prompt.substring(0, 1);
+      const braCount = (prompt.match(/[\[{]/g) || []).length;
+      let weight = 0;
+
+      if (braType === '{') {
+          weight = 1 * Math.pow(D2_PromptConvert.RATE, braCount);
+      } else {
+          weight = 1 * Math.pow(1 / D2_PromptConvert.RATE, braCount);
+      }
+
+      let weightAdjust;
+
+      // 四捨五入して小数点２位にするか、
+      // 四捨五入せず小数点３位で切り捨てるか
+      weightAdjust = Math.round(weight * 10) / 10;
+      // if (opts.d2_npc_enable_rounding) {
+      //     weightAdjust = Math.round(weight * 10) / 10;
+      // } else {
+      //     weightAdjust = Math.floor(weight * 100) / 100;
+      // }
+
+      const text = prompt.replace(/[\[\]{}]+/g, '');
+      return `(${text}:${weightAdjust})`;
+  }
+}
+
+/////////////////////////////////////////////
+/////////////////////////////////////////////
+/////////////////////////////////////////////
+
+/**
+ * プロンプト変換ダイアログ
+ */
+class D2_PromptConvertDialog {
+    static CSS_FILEPATH = "./extensions/D2-nodes-ComfyUI/css/D2_PromptConvertDialog.css";
+
+    container = undefined;
+
+    constructor() {
+        this._createDialog();
+        loadCssFile(D2_PromptConvertDialog.CSS_FILEPATH);
+    }
+
+    /**
+     * モーダルの表示
+     */
+    showModal() {
+        // this.container.showModal();
+        this.container.style.display   = "block";
+      }
+  
+    _createDialog() {
+      this.container = document.createElement("div");
+        this.container.classList.add("comfy-modal", "d2-prompt-convert");
+        document.body.appendChild(this.container);
+
+        const content = document.createElement("div");
+        content.classList.add("d2-prompt-convert__content");
+        this.container.appendChild(content);
+
+        const sdPrompt = D2_PromptConvertDialog.createPromptArea("input StableDiffusion Prompt");
+        content.appendChild(sdPrompt);
+
+        const naiPrompt = D2_PromptConvertDialog.createPromptArea("Input NovelAI Prompt");
+        content.appendChild(naiPrompt);
+
+        // SD > NAI 変換ボタン
+        const sdToNaiBtn = D2_PromptConvertDialog.createButton("SD to NAI", () => {
+            const prompt = sdPrompt.value;
+            const newPrompt = D2_PromptConvert.convertToNai(prompt);
+            naiPrompt.value = newPrompt;
+        });
+        content.appendChild(sdToNaiBtn);
+
+        // NAI > SD 変換ボタン
+        const naiToSdBtn = D2_PromptConvertDialog.createButton("NAI to SD", () => {
+            const prompt = naiPrompt.value;
+            const newPrompt = D2_PromptConvert.convertToSd(prompt);
+            sdPrompt.value = newPrompt;
+        });
+        content.appendChild(naiToSdBtn);
+
+        // SDクリップボード
+        const copySdBtn = D2_PromptConvertDialog.createButton("Send SD to Clipboard", () => {
+            sdPrompt.select();
+            document.execCommand("copy");
+        });
+        content.appendChild(copySdBtn);
+
+        // NAIクリップボード
+        const copyNaiBtn = D2_PromptConvertDialog.createButton("Send NAI to Clipboard", () => {
+            naiPrompt.select();
+            document.execCommand("copy");
+        });
+        content.appendChild(copyNaiBtn);
+
+        // 閉じるボタン
+        const closeBtn = document.createElement("button");
+        closeBtn.classList.add("d2-prompt-convert__close-btn");
+        closeBtn.textContent = "CLOSE";
+        closeBtn.addEventListener("click", () => {
+            // container.close();
+            this.container.style.display = "none";
+        });
+        content.appendChild(closeBtn);
+    }
+
+    /**
+     * プロンプトエリア作成
+     * @param {string} placeholder 
+     * @returns HTMLElement
+     */
+    static createPromptArea(placeholder) {
+        const textArea = document.createElement("textarea");
+        textArea.classList.add("comfy-multiline-input", "d2-prompt-convert__prompt-area");
+        textArea.placeholder = placeholder;
+        return textArea;
+    }
+
+    /**
+     * ボタン作成
+     * @param {string} text 
+     * @param {function} onClick 
+     * @returns 
+     */
+    static createButton(text, onClick) {
+        const btn = document.createElement("button");
+        btn.classList.add("d2-prompt-convert__btn");
+        btn.textContent = text;
+        btn.addEventListener("click", () => {
+            onClick();
+        });
+        return btn;
+    }
+}
+
+///////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////
+
+/**
+ * ダイアログ表示ボタン
+ */
+class D2_PromptConvertButton {
+    floatContainer = undefined;
+    dialog = undefined;
+
+    constructor() {
+        // フロートコンテナ
+        this.floatContainer = new D2_FloatContainer("D2_PromptConvertBUtton", 50, 100);
+        // ダイアログ
+        this.dialog = new D2_PromptConvertDialog();
+
+        this._createButton();
+
+        // 表示切り替え
+        const visible = app.ui.settings.getSettingValue("D2.PromptConvertButton.Visible", false);
+        this.changeVisible(visible);
+    }
+
+    /**
+     * 表示切り替え
+     */
+    changeVisible(bool) {
+        this.floatContainer.changeVisible(bool);
+    }
+
+    /**
+     * ボタン作成
+     */
+    _createButton() {
+        const button = document.createElement("button");
+        button.classList.add("p-button");
+        button.textContent = "Prompt convert";
+        this.floatContainer.addButton(button);
+
+        button.addEventListener("click", () => {
+          this.dialog.showModal();
+        });
+    }
+}
+
+(function () {
+    const promptConvertButton = new D2_PromptConvertButton();
+
+    app.ui.settings.addSetting({
+        id: "D2.PromptConvertButton.Visible",
+        name: "Show prompt convert button",
+        type: "boolean",
+        defaultValue: false,
+        onChange(value) {
+            promptConvertButton.changeVisible(value);
+        },
+    });
+})();
diff --git a/web/css/D2_PromptConvertDialog.css b/web/css/D2_PromptConvertDialog.css
new file mode 100644
index 0000000..2379c0a
--- /dev/null
+++ b/web/css/D2_PromptConvertDialog.css
@@ -0,0 +1,25 @@
+.d2-prompt-convert {
+  z-index: 1000;
+  width: 1000px;
+  max-width: 100%;
+}
+
+.d2-prompt-convert__content {
+  display: grid;
+  grid-template-columns: 1fr 1fr;
+  gap: .3rem 1rem;
+}
+
+/* .d2-prompt-convert__button-container {
+  gap: 0.25rem;
+} */
+
+.d2-prompt-convert__prompt-area{
+  height: 15rem;
+}
+
+
+.d2-prompt-convert__close-btn{
+  grid-column: span 2;
+  margin-top: 1rem;
+}
\ No newline at end of file