5 Extensions for YouTube Thumbnails (Must Have)

Article last updated on:
June 03, 2024

This list contains the best YouTube-Thumbnail-related extensions.

  • Form hiding thumbnails to upgrading yours as a creator…
  • All of these 5 are valuable in their own way.

Regardless: If your spend lots of time on YouTube, these are all for you.

TOP 5: Extensions for YouTube Thumbnails

These are the 5 best YouTube-Thumbnail Extensions: Thumbnail Test, Hide YouTube Thumbnails, ThumbnailViewer, ClickbaitRemover, and BlurredThumbnails.

1. Thumbnail Test

Link to the extension: Thumbnail Test.

Purpose: This Chrome extension aims to automate the process of uploading A/B testing data for thumbnails on YouTube channels. It integrates with ThumbnailTest.com, a tool used for analyzing thumbnail performance.


  • Improves Accuracy: Reduces the risk of errors introduced during manual data entry.
  • Streamlines Workflow: Updates A/B test data in Thumbnail Test with the latest information from YouTube Studio in one go.


  • Limited Functionality: Only works with Thumbnail Test, potentially restricting its use for creators who prefer other analytics platforms.
  • Reliance on Chrome: Requires the Chrome browser to function. Users of other browsers wouldn’t benefit from this extension.

Overall: This Chrome extension offers a convenient solution for YouTubers who use Thumbnail Test for A/B testing thumbnails. It streamlines data collection and upload, saving time and potentially improving accuracy.

2. Hide YouTube Thumbnails

Access it: Hide YouTube Thumbnails.

Chrome Extension that disables YouTube Thumbnails

Purpose: To provide a distraction-free YouTube browsing experience by allowing users to hide, blur, or customize video thumbnails, aiding in focus and content control.


  • Enhances focus by reducing clickbait and visual distractions.
  • Offers customizable settings for different user preferences and contexts.
  • Useful for educational purposes to shield students from inappropriate content.


  • May not fully work with certain ad blockers, leading to compatibility issues.
  • Some settings might not effectively block all distractions.
  • The interface could become too minimalistic, potentially impacting user engagement.

3. ThumbnailViewer

Get it over here: ThumbnailViewer

ThumbnailViewer - Chrome Extension

Purpose: This extension displays a YouTube video’s thumbnail in full size, offering a straightforward way to view and possibly save the thumbnail image.


  • Streamlines the process of viewing YouTube video thumbnails.
  • Improved design with a better icon and optimized screen space usage.
  • Enhanced usability with fixed bugs and removed unnecessary permissions.


  • Limited functionality focused only on displaying thumbnails.
  • Past versions had issues with caching, possibly showing outdated thumbnails.

Read further: How to see a thumbnail in full size.

4. ClickbaitRemover

Get it here: ClickbaitRemover

ClickbaitRemover - Chrome Extension

Purpose: The extension aims to enhance the YouTube browsing experience by replacing clickbait thumbnails with actual video frames and modifying overly sensational titles for a more authentic preview.


  • Reduces clickbait by providing genuine video snapshots and moderated titles.
  • Offers instant customization without needing to refresh the page, available on both desktop and mobile platforms.
  • Supports a healthier YouTube usage by minimizing distractions and sensational content.


  • May cause loading issues with certain thumbnails, particularly for upcoming live streams.
  • Could lead to a perceived decrease in video appeal, making content seem less interesting.
  • Requires user interaction for customization, which may not appeal to all users.

5. BlurredThumbnails

Get it here: BlurredThumbnails

BlurredThumbnails - Extension

Purpose: This extension allows users to blur YouTube video thumbnails selectively for a less distracting browsing experience, with customizable settings based on channel names, keywords, and user-defined whitelists or blacklists.


  • Customizable filtering with options for whitelisting, blacklisting, channel names, and video title keywords.
  • Easy configuration through the extension’s options menu, with instant application of settings.
  • Offers a unique way to minimize distractions or unwanted content on YouTube.


  • Some users may find it challenging to adjust settings or add channels to the blacklist after initial setup.
  • Limited effectiveness on certain pages, like the YouTube homepage, according to some users.
  • May require toggling or adjusting settings to avoid blurring searched content while maintaining homepage blur.

Thank you for reading this,
Thumbnail Test

About the author

David is the head of the editing team at ThumbnailTest. With his help, the editorial team is able to provide you with the best free guides related to YouTube thumbnails and A/B testing.