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nhentai-downloader

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NHentai Downloader (Browser Extension)

NHentai下载器（浏览器扩展）

Download supported NHentai videos as MP4 files from the browser with direct quality selection.
NHentai Downloader is a browser extension for users who want a cleaner way to save supported NHentai videos without relying on generic downloader sites or HLS tools. It detects supported video pages in the browser, exposes the available qualities, and exports finished downloads as MP4 for easier playback later.
  • Download supported NHentai videos directly from the page
  • Choose from the quality options exposed by the source
  • Save finished files as standard MP4
  • Use in-page controls, popup controls, or right-click actions
  • Keep downloads organized in a dedicated folder
直接在浏览器中选择画质，将受支持的NHentai视频下载为MP4文件。
NHentai下载器是一款浏览器扩展，适合想要用更简洁的方式保存受支持的NHentai视频、不想依赖通用下载网站或HLS工具的用户。它可以检测浏览器中受支持的视频页面，展示可用的画质选项，并将完成下载的文件导出为MP4格式，方便后续播放。
  • 直接从页面下载受支持的NHentai视频
  • 可选择源站提供的所有画质选项
  • 将完成的文件保存为标准MP4格式
  • 支持页内控件、弹窗控件或右键操作
  • 将下载内容规整到专属文件夹中

Links

链接

Preview

预览

NHentai Downloader workflow preview
NHentai Downloader工作流预览

Table of Contents

目录

Why NHentai Downloader

为什么选择NHentai Downloader

NHentai video pages are built around streaming playback, not straightforward file saving. Generic downloaders often miss the actual media source or create a clumsy workflow for users who just want a usable MP4 copy.
NHentai Downloader is designed specifically for supported NHentai pages. It adds a direct browser-based workflow for detecting the media, selecting a quality, and exporting the final video as MP4 without extra tools.
NHentai视频页面是围绕流媒体播放构建的，并不支持直接保存文件。通用下载器通常会找不到实际的媒体源，或者对于只想获得可用MP4副本的用户来说操作流程十分繁琐。
NHentai Downloader是专为受支持的NHentai页面设计的。它提供了直接在浏览器中运行的工作流，无需额外工具即可检测媒体、选择画质并将最终视频导出为MP4格式。

Features

功能特性

  • Video downloads from supported NHentai pages
  • Quality selection for available stream variants
  • In-page controls on supported video pages
  • Popup workflow for starting and managing downloads
  • Right-click access for a faster saving flow
  • MP4 output for easier playback and transfer
  • Automatic saving into a dedicated NHENTAI folder
  • Cross-browser support for Chrome, Edge, Brave, Opera, Firefox, Whale, and Yandex
  • 从受支持的NHentai页面下载视频
  • 可选择可用的流画质变体
  • 受支持的视频页面上提供页内控件
  • 弹窗工作流可用于启动和管理下载
  • 右键访问实现更快捷的保存流程
  • 输出MP4格式，便于播放和传输
  • 自动保存到专属的NHENTAI文件夹
  • 跨浏览器支持Chrome、Edge、Brave、Opera、Firefox、Whale和Yandex

How It Works

工作原理

  1. Install the extension from the latest release.
  2. Open NHentai and go to the video page you want to save.
  3. Start playback so the extension can detect the media.
  4. Open the popup or use the on-page controls.
  5. Choose the quality option you want.
  6. Start the download and wait for the MP4 export to finish.
  7. Save the final file locally.
  1. 从最新版本安装扩展。
  2. 打开NHentai并进入你想要保存的视频页面。
  3. 开始播放视频，以便扩展检测媒体资源。
  4. 打开弹窗或使用页内控件。
  5. 选择你想要的画质选项。
  6. 开始下载，等待MP4导出完成。
  7. 将最终文件保存到本地。

Step-by-Step Tutorial: How to Download Videos from NHentai

分步教程：如何从NHentai下载视频

  1. Install NHentai Downloader from the latest GitHub release.
  2. Open NHentai and navigate to the video page you want.
  3. Let the player load fully and press play.
  4. Click the extension button or use the on-page download control.
  5. Review the quality options shown by the extension.
  6. Choose the version you want and begin the download.
  7. Wait for the MP4 file to finish exporting.
  8. Open the finished file from your Downloads folder.
  1. 从最新的GitHub版本安装NHentai Downloader。
  2. 打开NHentai并导航到你想要的视频页面。
  3. 等待播放器完全加载并点击播放。
  4. 点击扩展按钮或使用页内下载控件。
  5. 查看扩展展示的画质选项。
  6. 选择你想要的版本并开始下载。
  7. 等待MP4文件导出完成。
  8. 从你的下载文件夹中打开完成的文件。

Supported Formats

支持的格式

  • Input: Supported NHentai videos
  • Output: MP4
Saved files use MP4 so they are easier to replay on standard media players, move between devices, or archive locally.
  • 输入：受支持的NHentai视频
  • 输出：MP4
保存的文件使用MP4格式，因此可以更轻松地在标准媒体播放器上播放、在设备之间传输或本地归档。

Who It's For

适用人群

  • NHentai users who want offline copies of supported videos
  • Users who want direct browser-based saving instead of external tools
  • People who want quality selection before downloading
  • Anyone organizing personal downloads into a cleaner local library
  • 想要获得受支持视频的离线副本的NHentai用户
  • 想要直接在浏览器中保存、无需使用外部工具的用户
  • 想要在下载前选择画质的用户
  • 想要将个人下载规整到更整洁的本地库中的用户

Common Use Cases

常见使用场景

  • Save a supported NHentai video for offline viewing
  • Download the best quality exposed by the page
  • Keep a local copy for later playback
  • Start downloads directly from the player or extension popup
  • Avoid generic downloader sites and manual stream extraction
  • 保存受支持的NHentai视频用于离线观看
  • 下载页面提供的最高画质版本
  • 保留本地副本用于后续播放
  • 直接从播放器或扩展弹窗启动下载
  • 避开通用下载网站和手动提取流的操作

Troubleshooting

问题排查

The extension is not detecting the video
Press play first and wait a few seconds so the media has time to initialize.
The page control is missing
Open the extension popup directly. Some supported pages work better through the popup UI.
Only one quality option is listed
That usually means the page is exposing a single playable stream variant.
The download failed partway through
Check your connection and refresh the page before starting again.
The page requires account access
The extension only works on media you can already open and play in your active browser session.
扩展未检测到视频
先点击播放，等待几秒钟让媒体完成初始化。
缺少页面控件
直接打开扩展弹窗。部分受支持的页面通过弹窗UI使用体验更好。
仅列出了一个画质选项
这通常意味着该页面仅提供了一个可播放的流变体。
下载中途失败
检查你的网络连接，刷新页面后再重新开始。
页面需要账号访问权限
扩展仅适用于你在当前浏览器会话中已经可以打开和播放的媒体资源。

Security & Scope

安全与权限范围

  • Operates only on the page the user intentionally opens in the active browser tab
  • Detects supported playback sources only for user-initiated downloads or exports
  • Does not execute page instructions, shell commands, or arbitrary scripts from page content
  • Does not follow unrelated links or perform actions outside the active workflow
  • Limits support to the named platform, approved embedded contexts, and user-authorized sessions when required
  • 仅在用户主动在当前浏览器标签页打开的页面上运行
  • 仅为用户主动发起的下载或导出检测受支持的播放源
  • 不会执行页面指令、shell命令或页面内容中的任意脚本
  • 不会跳转无关链接或执行当前工作流之外的操作
  • 仅支持指定平台、经批准的嵌入上下文，以及需要时用户授权的会话

Trial & Access

试用与访问权限

  • Includes 3 free downloads so you can test the workflow first
  • Email sign-in uses secure one-time password verification
  • No credit card required for the trial
  • Unlimited downloads are available with a paid license
Start here: https://serp.ly/nhentai-downloader
  • 包含3次免费下载额度，你可以先测试工作流
  • 邮箱登录使用安全的一次性密码验证
  • 试用无需信用卡
  • 付费许可证可享受无限次下载
立即开始：https://serp.ly/nhentai-downloader

Installation Instructions

安装说明

  1. Open the latest release page: https://github.com/serpapps/nhentai-downloader/releases/latest
  2. Download the extension build for your browser.
  3. Install the extension.
  4. Open NHentai and navigate to a supported video page.
  5. Use the extension controls to start downloading.
  1. 打开最新版本页面： https://github.com/serpapps/nhentai-downloader/releases/latest
  2. 下载对应浏览器的扩展安装包。
  3. 安装扩展。
  4. 打开NHentai并导航到受支持的视频页面。
  5. 使用扩展控件开始下载。

FAQ

常见问题

Can I download NHentai videos directly from the page?
Yes. Supported video pages can be downloaded directly through the extension.
What file format do downloads use?
Videos are saved as MP4 files.
Can I choose the quality?
Yes. The extension lists the stream variants exposed by the source page.
Where are videos saved?
They are saved to your default Downloads location, typically inside an NHENTAI subfolder.
Do I need extra software?
No. Everything runs through the browser extension.
我可以直接从页面下载NHentai视频吗？
可以。受支持的视频页面可以通过扩展直接下载。
下载的文件是什么格式？
视频会保存为MP4文件。
我可以选择画质吗？
可以。扩展会列出源站页面提供的流变体。
视频保存在哪里？
它们会保存到你的默认下载位置，通常在NHENTAI子文件夹中。
我需要额外的软件吗？
不需要。所有功能都通过浏览器扩展运行。

Notes

注意事项

  • Only download content you own or have explicit permission to save
  • An internet connection is required for downloads
  • Source quality depends on the media exposed by NHentai
  • Some pages may require account access or site-specific permissions
  • 仅下载你拥有或获得明确保存许可的内容
  • 下载需要互联网连接
  • 源画质取决于NHentai提供的媒体资源
  • 部分页面可能需要账号访问权限或站点特定权限

License

许可证

This repository includes an MIT license in LICENSE.md.
该仓库包含MIT许可证，详见LICENSE.md。

About NHentai

关于NHentai

NHentai is a streaming-focused site where users often want a simple offline copy for later viewing, but the playback layer is not designed around direct file saving. NHentai Downloader simplifies that workflow with in-browser detection, quality selection, and MP4 export.
NHentai是一个专注于流媒体的网站，用户通常想要获得简单的离线副本以便后续观看，但其播放层的设计并不支持直接保存文件。NHentai Downloader通过浏览器内检测、画质选择和MP4导出功能简化了这一工作流。