YouTube has a built-in transcript feature, but it's buried, clunky, and gives you a wall of timestamped text with no way to download or summarize it. That's why Chrome extensions exist — they put the transcript one click away and often add AI features on top.
But with dozens of options in the Chrome Web Store, which one is actually worth installing?
We tested the most popular YouTube transcript Chrome extensions and ranked them based on speed, accuracy, features, and value. Here's the breakdown.
How We Tested
We evaluated each extension on speed, accuracy, features, free tier, privacy, and user experience. We tested on 5 videos: a 10-minute tech review, a 45-minute lecture, a 2-hour podcast, a video with auto-captions only, and a video with no captions.
The 10 Best YouTube Transcript Chrome Extensions
1. Claras — Best Overall
What it does: One-click YouTube transcription with AI-powered summary, key takeaways, and chapter breakdowns.
Why it's #1: Claras doesn't just give you a transcript — it actually understands the video. You get the full text plus a structured AI summary with key points, chapter breakdowns, and highlights. Everything appears in a clean sidebar without leaving YouTube.
Key features:
- One-click transcript extraction
- AI-generated summary with key takeaways
- Chapter-by-chapter breakdown
- Works on videos without YouTube captions (AI transcription)
- Clean, clutter-free interface
- Copy to clipboard with one click
Free tier: 3 video summaries a day, no credit card required.
Best for: Students, researchers, content creators — anyone who needs both the transcript AND the insights.
2. Glasp — Best for Highlighting & Social Learning
What it does: Transcript extraction with highlighting, note-taking, and a social knowledge-sharing layer.
Key features:
- Full transcript with timestamps
- Highlight specific passages
- YouTube Summary with ChatGPT & Claude integration
- Social feed — see what others highlight
Free tier: Fully free for basic transcript and highlighting.
Limitations: Summary quality depends on ChatGPT/Claude, not a built-in model. No standalone AI analysis.
Best for: People who like to highlight and annotate.
3. Tactiq — Best for Meeting + YouTube Transcription
What it does: Primarily a meeting transcription tool (Google Meet, Zoom) that also works on YouTube.
Key features:
- Real-time transcription during meetings
- YouTube transcript extraction
- AI summary and action items
- Export to Google Docs, Notion, Slack
Free tier: 5 free transcriptions per month.
Limitations: YouTube is a secondary feature. 5-per-month limit runs out fast.
Best for: People who need meeting transcription AND occasional YouTube transcripts.
4. YTScribe — Best for Multi-Language Transcripts
What it does: Transcript extraction with translation support in 50+ languages.
Key features:
- Full transcript with timestamps
- Auto-translation to 50+ languages
- Clean, minimal interface
Free tier: Fully free for basic transcripts.
Limitations: No AI summary. Pulls YouTube's auto-captions only.
Best for: International users who need translated transcripts.
5. Eightify — Best for Quick 8-Point Summaries
What it does: Generates an 8-point summary of any YouTube video using AI.
Key features:
- 8-point key insights format
- Timestamped summaries
- Multiple language support
Free tier: Limited free summaries, then paid plan required.
Limitations: Summary-only — no full transcript. Free tier is quite restrictive.
Best for: People who just want quick key points.
6. YouTube Summary with ChatGPT & Claude (by Glasp)
What it does: Adds a transcript sidebar to YouTube that you can send to ChatGPT or Claude with one click.
Key features:
- Transcript sidebar on YouTube
- One-click send to ChatGPT or Claude
- Customizable prompts
- Open-source
Free tier: Free (requires your own ChatGPT/Claude account).
Limitations: Requires separate AI account. No built-in summarization.
Best for: People who already use ChatGPT/Claude heavily.
7. TubeOnAI — Best for Podcast-Length Content
What it does: AI summarization optimized for long-form content like podcasts and lectures.
Key features:
- Handles very long videos well
- Multi-format summaries
- Chrome extension + web app
Free tier: Limited free tier.
Limitations: Transcript extraction is secondary. Paid plans required for regular use.
Best for: Heavy podcast listeners who want summaries of long episodes.
8. Notta — Best for Accuracy
What it does: AI-powered transcription using its own speech recognition rather than YouTube's auto-captions.
Key features:
- Own AI transcription engine (higher accuracy)
- 58+ language support
- Speaker identification
- Export to multiple formats
Free tier: 120 minutes/month free.
Limitations: YouTube is one of many use cases. Extension is less polished for YouTube specifically.
Best for: Users who prioritize transcript accuracy.
9. Glarity — Best Open-Source Option
What it does: Open-source extension that auto-generates summaries using ChatGPT.
Key features:
- Auto-summary next to YouTube videos
- Open-source code
- Works on Google search results too
Free tier: Free (best results require OpenAI API key).
Limitations: Requires your own API key for reliability. No standalone transcript extraction.
Best for: Developers and privacy-conscious users.
10. Copy YouTube Transcript — Best for Simplicity
What it does: Adds a "Copy Transcript" button to every YouTube video page. That's it.
Key features:
- One button: copy the full transcript
- Minimal permissions
- No account needed
Free tier: Completely free, no limits.
Limitations: No AI features. No summary, no key points, no translation.
Best for: People who just want to copy-paste the transcript with zero bloat.
Quick Comparison Table
| Extension | What You Get |
|---|---|
| Claras | Transcript + AI Summary + Key Points + Works Without Captions (2 free videos) |
| Glasp | Transcript + Highlighting (free, no built-in AI) |
| Tactiq | Transcript + AI Summary (5/month free) |
| YTScribe | Transcript + Translation (free, no AI) |
| Eightify | AI Summary only (limited free) |
| YT Summary + ChatGPT | Transcript + ChatGPT bridge (free, needs ChatGPT account) |
| TubeOnAI | Transcript + AI Summary (limited free) |
| Notta | Transcript + Own AI engine (120 min/month free) |
| Glarity | AI Summary only (free, needs API key) |
| Copy YT Transcript | Transcript copy only (unlimited free) |
How to Install a YouTube Transcript Chrome Extension
- Go to the Chrome Web Store
- Search for the extension name (e.g., "Claras")
- Click "Add to Chrome"
- Confirm by clicking "Add extension"
- The extension icon appears in your toolbar
- Open any YouTube video and click the icon
Tip: Pin the extension to your toolbar — click the puzzle piece icon in Chrome, then the pin icon next to the extension name.
How to Choose the Right Extension
- Need transcript + summary? → Claras, Eightify, or TubeOnAI
- Just need the transcript? → Copy YouTube Transcript or Glasp
- Use it daily? → Pick one with a generous free tier (Claras, Glasp)
- Work with long videos? → Claras and TubeOnAI handle long content best
- Need translation? → YTScribe supports 50+ languages
- Already use ChatGPT? → YouTube Summary with ChatGPT & Claude
Frequently Asked Questions
What is the best free YouTube transcript Chrome extension?
Claras is the best free option for most users — you get transcription plus AI-powered summaries, key takeaways, and chapter breakdowns with the free tier (3 video summaries a day). For unlimited free transcripts without AI features, Glasp and Copy YouTube Transcript are solid choices.
Are YouTube transcript Chrome extensions safe?
Most popular extensions are safe. Check the permissions before installing — a transcript extension should only need access to YouTube pages. Stick to extensions with high ratings, many users, and a clear privacy policy. Claras, Glasp, and Tactiq are all well-established and trusted.
Can Chrome extensions transcribe videos without subtitles?
Most transcript extensions only pull YouTube's existing auto-generated captions. If a video has no captions, they won't work. AI-powered extensions like Claras and Notta can generate transcripts from the audio using their own speech recognition.
What's the difference between a transcript extension and a summary extension?
A transcript extension gives you the full text of everything said. A summary extension condenses that into key points. Extensions like Claras do both — full transcript alongside an AI-generated summary with key takeaways and chapter breakdowns.
Do these extensions work on Firefox or Edge?
Some do. Glasp has a Firefox version. Edge supports most Chrome extensions natively since it's Chromium-based. The widest selection is still on Chrome.
How do I install a YouTube transcript Chrome extension?
Go to chromewebstore.google.com, search for the extension, click "Add to Chrome," then confirm. The extension icon appears in your toolbar. Open any YouTube video and click the icon.
Our Pick: Claras
If you only install one YouTube transcript extension, make it Claras. It's the only extension that gives you a full transcript AND an AI-powered summary with key takeaways, chapter breakdowns, and highlights — all in one click, without leaving YouTube.
Try Claras Free — 3 video summaries a day, no credit card.
