ニコニコからの動画保存をサポートする他、ニコニコを便利に使うための非公式の拡張機能です。

Latest Version

Version
5.0.0.13
Update
September 27, 2024
Size
8.53MiB
Developer
Category
Users
80,000+
Rating
4.3211 ★
Manifest Version
3
Web Store Status
Languages Support
日本語
See more
Permissions
Storage
See more

nico downloader Extension

【帰ってきたニコニコ 対応済】ニコニコの動画を保存するためのリンクを、動画ページのタイトル直下に作成します。
さらに、ニコニコ大百科を始めとするニコニコのサービスの拡張・機能向上を行う拡張機能です。
これらは全て自動でリンクを作成するため従来に比べ手間が省けており、かつシンプルです。


◆設定方法
こちらを読んでいただくのが一番わかり易いと思います。
https://note.com/masteralice3104/n/na2e2325b50a3?sub_rt=share_pb

◆バグの報告はここから
https://github.com/masteralice3104/nico_downloader/issues

◆ソースコードはここにあります
https://github.com/masteralice3104/nico_downloader

■動画保存の事前準備
① 当拡張機能をインストール
② 当拡張機能のオプションに記載された初期設定を行う
③ 初期設定モードをOFFにする

■基本的な動画保存の使用方法
① 任意の動画ページ(sm~~~の動画)を開きます。(nm~やso~等は基本的に対応しません)
② 動画の右下にある「~~~~~.mp4を保存」をクリック
③ 自動でダウンロード・変換処理を行った後、保存ダイアログが開くor既定のフォルダにダウンロードされます(Chromeの保存設定に依存します)。

■注意事項
○ 様々な法的規制に十分に注意してご利用ください。
○ 保存方法③の処理は回線速度とCPU速度に依存します。また通信量などにご注意ください。
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "nico downloader", "description": "\u30cb\u30b3\u30cb\u30b3\u304b\u3089\u306e\u52d5\u753b\u4fdd\u5b58\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u4ed6\u3001\u30cb\u30b3\u30cb\u30b3\u3092\u4fbf\u5229\u306b\u4f7f\u3046\u305f\u3081\u306e\u975e\u516c\u5f0f\u306e\u62e1\u5f35\u6a5f\u80fd\u3067\u3059\u3002", "version": "5.0.0.13", "icons": { "16": "icon_16.png", "48": "icon_48.png", "128": "icon_128.png" }, "permissions": [ "storage" ], "web_accessible_resources": [ { "matches": [ "https://www.nicovideo.jp/*" ], "resources": [ "options.html", "dist/ffmpeg-core2.js", "dist/ffmpeg-core.wasm", "dist/utils.js", "func/nicojson.js", "func/ndl.js" ] } ], "content_scripts": [ { "matches": [ "https://www.nicovideo.jp/*" ], "js": [ "nicovideodownloader_scripts.js", "options.js", "dist/ffmpeg-core2.js", "dist/utils.js", "func/nicojson.js", "func/ndl.js" ] }, { "matches": [ "https://dic.nicovideo.jp/*" ], "js": [ "dic_scripts.js", "options.js" ] } ], "options_page": "options.html"}
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How to download and manually install nico downloader extension for Chrome

Looking for a way to install nico downloader extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install nico downloader extensions manually, this article outlines two simple methods to effortlessly install nico downloader extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download nico downloader extension and manually install through Drag &Drop

If you ever need to manually install a nico downloader extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the nico downloader Extension by clicking the "Download CRX" button on the website.

Look for the nico downloader extension you wish to install. Go to the website and download the nico downloader extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for nico downloader extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the nico downloader extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download nico downloader extension for Chrome and install in Developer Mode

This is another method to install nico downloader extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the nico downloader extension file

Select and download the nico downloader extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the nico downloader extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your nico downloader extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the nico downloader extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install nico downloader extension in 2 ways. We hope this guide proves helpful.

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User reviews

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tube you (ID: 000000e833e641af) Voted 5 ★ - Updated 01/04/2024 DLできました、ありがとうございました!

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HM next (ID: 00000037931ee5f7) Voted 4 ★ - Updated 11/09/2023 11月に投稿された動画のDLに対応していないかな? ここのページのやつ。 https://blog.nicovideo.jp/niconews/205042.html 対応待ってます

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losten (ID: 000000d931df346e) Voted 5 ★ - Updated 09/01/2023 Thanks for this extenison!

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T I (ID: 00000078b2152ff1) Voted 2 ★ - Updated 08/16/2023 チャンネル会員限定動画には効かない。

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Re: emeth (りこった) (ID: 0000002d171a4b03) Voted 5 ★ - Updated 05/01/2023 2023/5/1現在問題なくDLすることが出来ます。 ダウンロード準備が終わるとワンクリックで保存できるので便利です。 上手くいかない人は説明通り設定を確認してみてください。以下引用 (ページ中の動画を右クリックして視聴方法をhlsからhttpに切り替えてから再度ページを読み込んでみてください。)