Best YouTube Video Summarizer Extensions to Save Time

What is The Best YouTube Video Summarizer Extension

With so many long-form videos on YouTube, finding the right YouTube video summarizer extension can drastically improve your productivity. Below are the top free and AI-powered tools that help you summarize videos quickly and effectively.

1. TubeOnAI

TubeOnAI is an AI-driven Chrome extension specifically built for summarizing YouTube videos. It leverages GPT-4 to provide short, clear, and accurate summaries-even for videos without captions. You can toggle between paragraph or bullet format and get time-stamped insights.

Price: Free plan available; Premium from $4.99/month

Key Features:

• AI-generated bullet/paragraph summaries
• Summarize videos without closed captions
• Timestamped highlights for quick navigation
• Export summaries for note-taking

2. Notta

Notta is a robust transcription and summarization platform that supports YouTube, Zoom, Google Meet, and more. Unlike browser-only extensions, Notta allows you to paste a YouTube URL and generate transcripts, highlights, and summaries.

Price: Free tier available; Premium starts at $8.25/month

Key Features:

• Import YouTube URLs for transcription
• AI-generated key points and topic tagging
• Real-time speech-to-text
• Export to TXT, DOCX, PDF, or SRT

3. Eightify

Eightify is a lightweight Chrome extension that summarizes YouTube videos in eight bullet points. It embeds the summary directly under the video and is best suited for productivity, business, and educational content.

Price: Free limited usage; Pro from $4.99/month

Key Features:

• Eight AI-generated key insights per video
• Timestamped summary view
• Clean layout within YouTube interface

4. Glarity

Glarity is an all-in-one AI summarizer extension that works across YouTube, Google Search, Gmail, and news sites. It uses ChatGPT to offer concise summaries and explanations right inside your browser.

Price: 100% Free

Key Features:

• One-click summaries across websites
• YouTube transcript analysis
• Supports multiple languages and dark mode

5. Glasp

Glasp's YouTube Digest extension turns video transcripts into readable notes using GPT-3/4. It offers shareable bullet lists and highlights ideal for researchers and students.

Price: Free

Key Features:

• Transcript-based AI summarization
• Bullet points + paragraph formats
• Export summaries to Notion
• Works with most educational YouTube content

6. HARPA AI

HARPA is a powerful AI automation assistant that works within the browser and interacts with sites like YouTube using natural language commands. It's much more than a video summarizer-it can automate research, extract data, and summarize content on demand.

Price: Free (Requires OpenAI API Key)

Key Features:

• Natural-language YouTube summarization
• GPT-4 command support
• Works across search, social, and eCommerce

7. YouTube Digest

This extension auto-generates summaries of YouTube videos using ChatGPT or Claude. It supports paragraph, bullet, and mixed formats and is embedded directly under the video player.

Price: Free

Key Features:

• Multi-format summaries
• Integrates with GPT and Claude
• No sign-up required

8. ReClipped

ReClipped focuses on educational use, allowing users to annotate, clip, and summarize YouTube content. It's great for collaborative learning and team research.

Price: Free; Premium options available

Key Features:

• Video clipping and note-taking
• AI-generated summaries
• Shareable boards and annotations

Pro Tip: Convert YouTube Videos to Text or Subtitles

While browser extensions are great for high-level summaries, they depend on captions or built-in transcripts, which many videos lack-especially in niche or foreign-language content.

That's where Univd's speech-to-text module gives you full control.

Univd is an all-in-one desktop video tool that features a speech-to-text conversion engine capable of turning any video or audio file into accurate transcripts or subtitles.

Key Features:

• Converts video to text in minutes using AI
• Exports in subtitle or plain-text formats
• Supports over 1000 video and audio formats
• High transcription accuracy
• Multi-language support
• No need for existing captions

How to Convert Video to Text using HitPaw Univd

• Step 1.Launch HitPaw Univd and choose Speech to Text feature from the main interface.

  

• Step 2.Import the video or audio file that you want to transcript.

  

• Step 3.In the Output Format list, you can choose plain text or subtitle option. The plain text will be saved as a .txt file, and a subtitle file will be saved in .srt. In the language list, you can choose the primary language of the source file.

  

• Step 4.Click Create button to start converting. You can preview the text after the transcription.

  

• Step 5.Click Export button to save the document.

Whether you're summarizing an entire video or preparing study notes, Univd bridges the gap between video and readable content, making it a must-have tool alongside your favorite video summarizer extensions.

Conclusion

From AI-powered Chrome tools to full transcription software, there are plenty of options for summarizing YouTube content. Tools like TubeOnAI, Eightify, and Glarity make it easy to quickly scan long videos, while platforms like ReClipped help with deeper research.

But when summaries aren't enough-and you need complete transcripts or accurate subtitles-Univd's speech-to-text tool provides the most reliable solution.