Lockcard - Vocabulary Builder from YouTube, Articles & More
Extension Actions
- Extension status: Featured
Learn vocabulary from YouTube, articles & PDFs. Save with context, track encounters, and sync to iPhone for review.
Lockcard vocabulary builder helps you learn English from real content such as YouTube videos, online articles, PDFs, and web pages.
Instead of memorizing word lists, Lockcard helps you learn vocabulary in context. You can save words directly from what you read and watch, always with the original sentence and meaning preserved.
This makes it easy to understand how words are actually used in real situations, not just in definitions.
With Lockcard vocabulary builder, you can:
* Save vocabulary from YouTube, articles, PDFs, and web pages
* Capture words with full sentence context
* Build a personal vocabulary list automatically
* Track your vocabulary across different content
* Review words with spaced repetition and lightweight reminders
* Sync vocabulary to mobile for continuous learning
Lockcard vocabulary builder is designed for multilingual learners who want to build real vocabulary from real input, not isolated word lists.
Whether you are learning English for study, work, exams, or daily communication, Lockcard vocabulary builder helps you turn everyday content into long-term vocabulary memory.
Latest reviews
- Inno Spark
- Nice gadget for quickly learning vocab on the go
- pathan boks
- It works on websites, YouTube, even PDFs so whenever you see a new word you can just click it and save it right there with the original context which honestly makes it easier to remember later
- Al-Amin Islam
- Learn new vocabulary while you browse the web watch videos or read PDFs Lockcard helps you save words with real context so you remember how and where you found them
- Niamat Ullah
- the youtube part is the goodest feature i ever seen because u can just click the subtitles and it saves the exact video time for u. its so smart that it remembers where u saw the word so u can go back and watch the speaker say it again. i loves how it syncs everything to my iphone so i can review words while i am waiting for my latte or sitting on the bus. it feel way more natural than studying and i dont feels like i am wasting my time.
- Alex Anderson
- Let’s be real: by 2026, the traditional flashcard is basically a digital fossil. If I see one more green bird threatening my family for missing a lesson, I’m going to lose it. I’ve been living with Lockcard for a week to see if it actually delivers on natural learning, or if it’s just another graveyard for words I’ll never use.It doesn't just save a word; it saves the entire sentence. Learning from The New Yorker or The Economist feels elite because you’re seeing the word in its natural habitat, not in a sterile dictionary example.
- Asifur Rahman
- This is a mandatory tool for anyone in 2026 who wants to stop studying language and start absorbing it. It turns the entire internet into your personal classroom, provided you don't mind the occasional sync hiccup. pro-tip (actionable learning) If you're a developer using Cursor, enable the MCP Server toggle. This allows you to highlight obscure library terms or error-message jargon and zap them straight to your Lockcard deck without ever breaking your coding flow.
- catalin gidan
- Does the job well.
- Aragiman Aragiman
- Try using it, worth it, 10/10.
- Andreea Saraiman
- helped me a lot with my vocabulary !
- ana mare
- great extension, very easy to use !