Best AI YouTube Video Summarizer 2026 - Complete Comparison

Looking for the best AI YouTube video summarizer? You're in the right place. After testing dozens of tools, we've compiled an honest comparison of the top options available. Whether you need to summarize long videos, extract key points, or get quick highlights, this guide will help you find the perfect tool.

Quick Comparison Table

Tool Free Tier Accuracy Long Videos No Install Export Options
SummaryWorld Yes High (Whisper API) Yes Yes Text Copy
Recall Limited High Yes Extension Knowledge Base
Glasp Yes Good Short videos Extension Export
NoteGPT Limited Good Yes Extension Notes
summarize.tech Yes Good Yes Yes No

SummaryWorld Our Pick for Free & Accurate

SummaryWorld stands out for its combination of accuracy, ease of use, and completely free access. Unlike tools that rely on auto-generated captions, SummaryWorld uses OpenAI's Whisper API for transcription, which is significantly more accurate than YouTube's automatic captions. This means fewer hallucinations and more reliable summaries.

The tool works entirely in your browser—no installation, no sign-up required. Simply paste a YouTube URL and get a comprehensive summary in seconds. It handles long videos well and supports multiple platforms including YouTube, Vimeo, and more.

Pros

  • Completely free, no sign-up required
  • High accuracy with Whisper API transcription
  • Works with long videos
  • No installation needed
  • Supports multiple video platforms
  • Fast and reliable

Cons

  • No browser extension (web-based only)
  • Limited export formats

Recall

Recall is often mentioned as the best overall YouTube summarizer. It offers comprehensive summarization and creates a personal knowledge base for saved summaries. The summaries are created quickly and are accurate with no hallucinations. However, it requires a browser extension and has limited free tier access.

Pros

  • Very accurate summaries
  • Personal knowledge base
  • Fast processing
  • No hallucinations

Cons

  • Requires browser extension
  • Limited free tier
  • Only works with YouTube

Glasp

Glasp is great for short videos and provides free summarization with key point customization. It's a Chrome extension that works well for quick summaries but may struggle with very long content.

Pros

  • Free tier available
  • Customizable key points
  • Good for short videos

Cons

  • Best for short videos only
  • Requires extension

NoteGPT

NoteGPT excels in note-taking from videos, making it ideal for students and researchers. However, its free plan is somewhat limited, and it requires a browser extension.

Pros

  • Excellent for note-taking
  • Good for students
  • Structured output

Cons

  • Limited free plan
  • Requires extension

summarize.tech

summarize.tech is ideal for long videos, offering a straightforward, no-installation-required service. It's simple and free, making it a popular choice, though it may not have as many features as other tools.

Pros

  • Completely free
  • No installation needed
  • Works with long videos
  • Simple interface

Cons

  • Limited features
  • No export options

What to Look For in a YouTube Summarizer

When choosing the best AI YouTube video summarizer for your needs, consider these key factors:

  • Accuracy: Look for tools that use advanced transcription (like Whisper API) rather than relying on auto-generated captions
  • Free Tier: Many tools offer free access, but check limitations on video length or number of summaries
  • Long Video Support: If you watch educational content or long-form videos, ensure the tool can handle extended content
  • No Installation: Web-based tools are more convenient and don't require browser extensions
  • Export Options: Consider if you need to save summaries in specific formats (PDF, DOCX, text)
  • Speed: Fast summarization is important for productivity

Ready to Try SummaryWorld?

Get instant, accurate summaries of any YouTube video. Completely free, no sign-up required, and powered by advanced AI transcription.

Start Summarizing Now →