Create and upload community captions for YouTube videos (and more) with this easy to use extension that supports SSA/ASS rendering.

Latest Version

Version
1.10.4
Update
September 1, 2024
Size
4.64MiB
Developer
nekocap.com
Category
Users
5,000+
Rating
5 ★
Manifest Version
3
Web Store Status
Languages Support
English
Français
Tiếng Việt
فارسی‎
‫العربية
日本語
See more
Permissions
Storage
WebNavigation
See more

NekoCap Extension

View, create and share your captions/subtitles for videos on video streaming sites such as YouTube and Vimeo with this open source extension!
(Please help to report bugs to the Discord channel below)

Watch
* View community contributed captions made in NekoCap with the extension while browsing YouTube & other supported sites
* View captions with cool, advanced effects (WIP, for Substation Alpha [SSA/ASS] captions only)

Create
* Create captions in any language in the browser with the NekoCap editor while watching videos
* Load and tweak externally created captions (SSA, ASS, SRT, VTT, SBV files are supported)
* Use automatically generated captions as a base for your captions (YouTube only)
* Adjust caption timings
* Export captions created with the editor to SRT (other formats coming soon)

Share
* Submit your captions to the NekoCap server so that other NekoCap users can easily see them while browsing supported sites
* Give captions a thumbs up or down to let others know how accurate they are

* More features to come!
* And it's all free!
* (Click on the jigsaw icon and pin the NekoCap extension to login to submit captions)

Currently supported sites:
* YouTube
* Twitter
* Netflix (beta)
* TikTok
* Vimeo
and more!

Join the community on Discord here if you have questions and feedback: https://discord.gg/xZ9YEXY5pd

Contribute to this extension here: https://github.com/nopol10/nekocap

Important note: Captions are submitted by the community and may not reflect the intent of the video creator. Neither NekoCap nor the video creator is responsible for content in the community contributed captions
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "NekoCap", "description": "__MSG_extShortDescription__", "version": "1.10.4", "default_locale": "en", "action": { "default_icon": "icon16.png", "default_popup": "popup.html" }, "background": { "service_worker": "js/background.js" }, "content_scripts": [ { "matches": [ "https://*.youtube.com/*", "https://*.tver.jp/*", "https://*.nicovideo.jp/*", "https://*.vimeo.com/*", "https://*.bilibili.com/*", "https://*.netflix.com/*", "https://*.primevideo.com/*", "https://*.twitter.com/*", "https://*.wetv.vip/*", "https://*.tiktok.com/*", "https://*.iq.com/*", "https://*.abema.tv/*", "https://*.bilibili.tv/*", "https://*.nogidoga.com/*", "https://*.cu.tbs.co.jp/*", "https://*.archive.org/*" ], "run_at": "document_end", "js": [ "js/content.js" ] }, { "matches": [ "https://*.dailymotion.com/*" ], "run_at": "document_end", "all_frames": true, "js": [ "js/content.js" ] }, { "matches": [ "https://*.youtube.com/*", "https://*.tver.jp/*", "https://*.nicovideo.jp/*", "https://*.vimeo.com/*", "https://*.bilibili.com/*", "https://*.netflix.com/*", "https://*.primevideo.com/*", "https://*.twitter.com/*", "https://*.wetv.vip/*", "https://*.tiktok.com/*", "https://*.iq.com/*", "https://*.abema.tv/*", "https://*.dailymotion.com/*", "https://*.bilibili.tv/*", "https://*.nogidoga.com/*", "https://*.cu.tbs.co.jp/*", "https://*.archive.org/*" ], "run_at": "document_start", "css": [ "js/content.css" ] } ], "icons": { "16": "icon16.png", "48": "icon48.png", "128": "icon128.png" }, "permissions": [ "storage", "webNavigation" ], "web_accessible_resources": [ { "resources": [ "img/*.jpg", "img/*.png", "img/*.gif", "img/*.svg", "sub-assets/*.*", "js/subtitle-octopus/*.*" ], "matches": [ "https://*.youtube.com/*", "https://*.tver.jp/*", "https://*.nicovideo.jp/*", "https://*.vimeo.com/*", "https://*.bilibili.com/*", "https://*.netflix.com/*", "https://*.primevideo.com/*", "https://*.twitter.com/*", "https://*.wetv.vip/*", "https://*.tiktok.com/*", "https://*.iq.com/*", "https://*.abema.tv/*", "https://*.dailymotion.com/*", "https://*.bilibili.tv/*", "https://*.nogidoga.com/*", "https://*.cu.tbs.co.jp/*", "https://*.archive.org/*" ] } ], "externally_connectable": { "matches": [ "https://*.nekocap.com/*" ] }, "content_security_policy": { "extension_pages": "script-src 'self'; object-src 'self'" }, "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgxAzXBWt/o0z5yjDmUHDR8joIf6bAAxvfioMbfAdaL2VKVLTXgaLpnugSDbma1CvRU2VB/53EstafAcIg7kNVlT3WULNSuFsJHg4mEQUteOkNwnjXsBQICm04WswC1LfQQgUw3E3pJHiNnHp74ISy6Sncv0MfSWNIi9rFehDN2nXfbdDXNJNheZCMMF/HhLreyeaq2oCy4BIMqQp825kpfRRkCNG+mlvjpseCM6Nde3dPtByt2SplNKB4/O5LnOyfYTsjoDOU/0ak/CtwGqxkrYyeaI3pJrLXQAe35r8GLeO0EJQ7bElpBQuXVosrcNqp6HFqSxiHpWHYUrqoZxjcwIDAQAB"}
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How to download and manually install NekoCap extension for Chrome

Looking for a way to install NekoCap 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 NekoCap extensions manually, this article outlines two simple methods to effortlessly install NekoCap extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

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

If you ever need to manually install a NekoCap 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 NekoCap Extension by clicking the "Download CRX" button on the website.

Look for the NekoCap extension you wish to install. Go to the website and download the NekoCap extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for NekoCap 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 NekoCap 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 NekoCap extension for Chrome and install in Developer Mode

This is another method to install NekoCap 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 NekoCap extension file

Select and download the NekoCap 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 NekoCap 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 NekoCap 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 NekoCap 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 NekoCap extension in 2 ways. We hope this guide proves helpful.

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User reviews

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Kirbydogs no name here lol (ID: 000000d7c62e5642) Voted 5 ★ - Updated 08/02/2022 It's great, but I found one problem. If the extension is on, and your in Fullscreen, the scrollbars won't disappear.

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Hoang Le Vu (ID: 000000a2b168ec5c) Voted 5 ★ - Updated 04/30/2022 Rất hữu ích, sài ok vl :))

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Leo (ID: 0000009912f8539c) Voted 5 ★ - Updated 08/17/2021 This is SO, SO, SO cool! I absolutely love how you can edit the positioning in there!! Are there plans to add waveforms/sound waves to the editor? That would be extremely helpful!

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Carlos “Cosmic183” Palacios (ID: 000000916975f7ec) Voted 5 ★ - Updated 06/20/2021 Still needs to grow but its not a bad extension