YouTube Vocabulary Builder
Extract vocabulary from any YouTube video with definitions, difficulty levels, and example sentences from the video itself.
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How It Works
Paste URL
Any YouTube video with spoken content
We Pick the Words
Vocabulary with context and definitions
Study
Review, export to Anki, or download
Who Is This For
ESL/EFL Students
Build vocabulary from videos in your target language
Language Learners
Learn new words in context from real content
Test Prep Students
Build vocabulary for TOEFL, IELTS, GRE from video content
Self-Learners
Pick up domain-specific terminology from tutorials
FAQ
How does it decide which words to extract?
We analyze the transcript and pick words that are most useful for the difficulty level you chose. It skips very common words (like "the" or "is") and focuses on vocabulary that a learner at your level would benefit from knowing. Each word comes with the actual sentence from the video where it was used.
Can I export these to Anki?
Yes. The "Copy for Anki" button formats the vocabulary as tab-separated values (word, definition, example) that you can paste directly into Anki's import feature. Each word becomes a flashcard automatically.
What does the difficulty level setting do?
Beginner focuses on common but useful words (A1-A2 level). Intermediate targets words that a mid-level learner should know (B1-B2). Advanced extracts sophisticated and technical vocabulary (C1-C2). "All Levels" gives you a mix across all difficulty levels.
Does it work for languages other than English?
It works with any language that YouTube can transcribe. Vocabulary is pulled from whatever language the video is in. It works best with English, Spanish, French, German, and other widely-spoken languages.
Is it really free?
100% free, no signup required. You get 10 free uses per day. Built for language learners who want to turn the videos they already watch into study material.
Get the full read of every video you upload
Vocabulary Builder stays free here. A plan reads every video on your channel for you: what to change, where viewers left and why, what your comments ask for, and what to make next. It also follows channels like yours and checks every title and thumbnail before you post.
- 1 channel, every video compared with your usual
- Views per day and the retention curve (with YouTube Studio)
- Where viewers came from and who watched
- 5 free runs a day of every tool
- 1 channel, every new upload read for you
- Where viewers stop watching and why (with YouTube Studio)
- What to change on each video, from its own numbers
- What your comments ask for, counted and quoted
- What works on your channel, and what to make next
- Follow 10 channels like yours and see what takes off for them
- Check every title and thumbnail before you post
- A weekly email: what moved and what to make next
- 30 tool credits/month
- 3 channels, every new upload read for you
- Where viewers stop watching and why (with YouTube Studio)
- What to change on each video, from its own numbers
- What your comments ask for, counted and quoted
- What works on your channel, and what to make next
- Follow 30 channels like yours and see what takes off for them
- Check every title and thumbnail before you post
- A weekly email: what moved and what to make next
- 100 tool credits/month
- Priority support
- 20 channels, every new upload read for you
- Where viewers stop watching and why (with YouTube Studio)
- What to change on each video, from its own numbers
- What your comments ask for, counted and quoted
- What works on your channel, and what to make next
- Follow 100 channels like yours and see what takes off for them
- Check every title and thumbnail before you post
- A weekly email: what moved and what to make next
- 500 tool credits/month
- Priority support
Monthly, cancel anytime. Payment by Stripe. Plans include more runs of every tool.
Want to try Starter first? Get it free for 30 days by following ChannelGrade on X.