中文: 豆包视频/图片无水印下载 + 解锁15秒视频生成 · 开源免费 · 纯净无验证
English: Watermark-free download and 15-second video unlock for Doubao · Open-source, free, no verification
| 中文 | English |
|---|---|
| ✅ 图片无水印下载 — 一键保存无水印原图 | ✅ Watermark-free image download — Save original images with one click |
| ✅ 视频无水印下载 — 一键下载无水印MP4 | ✅ Watermark-free video download — Download clean MP4 videos |
| ✅ 15秒视频生成 — 豆包默认限10秒,本插件解锁至15秒 | ✅ 15-second video — Doubao limits to 10s; this plugin unlocks 15s |
| ✅ 无任何付费验证 — 无卡密、无会员、无后门 | ✅ No payment or verification — No license keys, no paywall, no backdoor |
中文: 豆包后端实际已返回无水印的图片/视频URL,只是前端展示时加了水印层。本插件劫持 JSON.parse 和网络请求,提取原始无水印地址,直接在页面上提供下载入口。
English: Doubao's backend already returns watermark-free image/video URLs — the watermark is only a front-end overlay. This plugin hooks JSON.parse and network requests to extract the original clean URLs and provides download buttons directly on the page.
中文: Seedance 2.0 模型原生支持 4~15秒视频生成,豆包在前端 UI 上仅开放了 5秒和10秒选项。本插件拦截视频生成请求,修改 duration 参数为 15,让后端模型生成完整 15秒视频。
English: The Seedance 2.0 model natively supports 4–15 second video generation, but Doubao's UI only exposes 5s and 10s options. This plugin intercepts video generation requests, patches the duration parameter to 15, and lets the backend produce the full 15-second output.
- 中文: Chrome 或 Edge 浏览器
- English: Chrome or Edge browser
| # | 中文 | English |
|---|---|---|
| 1 | 下载本插件文件夹,放在一个不要移动的位置 | Download the plugin folder and keep it in a permanent location |
| 2 | 打开浏览器扩展管理页 — Chrome: chrome://extensions/ · Edge: edge://extensions/ |
Open the extension management page — Chrome: chrome://extensions/ · Edge: edge://extensions/ |
| 3 | 开启「开发人员模式」 | Enable "Developer mode" (top right) |
| 4 | 点击「加载已解压的扩展」,选择本插件文件夹 | Click "Load unpacked" and select the plugin folder |
| 5 | 重启浏览器,工具栏出现蓝色方块图标 | Restart your browser — a blue square icon appears in your toolbar |
| 中文 | English |
|---|---|
| 1. 打开 doubao.com | 1. Open doubao.com |
| 2. 正常使用豆包生成图片或视频 | 2. Generate images or videos as usual |
| 3. 图片右下角出现 「下载原图」 按钮,点击保存 | 3. A "Download" button appears on images — click to save |
| 4. 视频块上出现 「下载视频」 按钮,点击保存 | 4. A "Download" button appears on videos — click to save |
| 中文 | English |
|---|---|
| 1. 点击工具栏蓝色方块图标打开弹窗 | 1. Click the blue square icon in the toolbar |
| 2. 打开 「15秒视频模式」 开关 | 2. Toggle "15s Video Mode" on |
| 3. 之后生成的视频自动变为15秒 | 3. All subsequent videos will be 15 seconds |
| 4. 关闭开关即可恢复默认时长 | 4. Toggle off to restore default duration |
⚠️ 重要: 开启15秒模式后,提示词中不要写「15秒」或任何超过10秒的时长描述,否则豆包会拒绝生成(提示「不支持超过10秒」),并提示生成10秒,如果继续生成的话就会变成10秒,导致插件失效。去除时间提示词描述即可。
Important: After enabling 15s mode, do NOT write "15 seconds" or any duration over 10s in your prompt — Doubao will reject it and suggest 10 seconds instead. If you proceed, it becomes 10 seconds and the plugin's 15s mode won't work. Simply remove the duration from your prompt.
doubao-free/
├── manifest.json # 扩展配置 / Extension manifest
├── content.js # 核心逻辑(注入豆包页面) / Core logic (injected into Doubao)
├── forwarder.js # 消息桥接 / Message bridge (MAIN ↔ Service Worker)
├── background.js # 后台服务(下载处理) / Background service (downloads)
├── popup.html # 弹窗页面 / Popup page
├── popup.js # 弹窗逻辑 / Popup logic
├── popup.css # 弹窗样式 / Popup styles
├── icon.png # 图标 / Icon
└── README.md # 本文件 / This file
| 中文 | English |
|---|---|
| 安装后重启浏览器生效。文件夹不要删除或移动,否则扩展会失效 | Restart your browser after installation. Do not delete or move the folder, or the extension will break |
失效时在 chrome://extensions/ 点刷新按钮重载 |
If it stops working, click the refresh button in chrome://extensions/ |
| 视频下载需要保持豆包账号登录状态 | You must be logged in to Doubao for video downloads |
| 如豆包更新接口导致异常,请提交 Issue | If Doubao's API changes break functionality, please open an Issue |
MIT License — 自由使用、修改、分发 / Free to use, modify, and distribute.

