Best English Vocabulary Builder - DD Vocab Alternatives in 2026

About English Vocabulary Builder - DD Vocab

📘 **DD Vocab: Learn English words effortlessly — one click, smart drills, real context.** DD Vocab is a simple browser helper for anyone learning English. Highlight a word while you read or watch in Chrome or Edge. In one click, you see the meaning, pronunciation, and example sentence — and the word is saved for easy review later. No login, no sign-up. Just highlight English words and learn. **⚡ Your first 30 seconds** 1. Highlight any English word on any page 2. A small popup shows: meaning, IPA, pronunciation audio, and the sentence you found it in 3. Click "Save" and the word goes to your list — no account, no setup That's it. Everything else is optional. **✨ Clean Lookup on Chrome, Edge, and YouTube** Works in Google Chrome and Microsoft Edge. Use it on articles, web apps, Google Docs, and YouTube videos (with captions) to catch new English words as you go. **📝 My Words — Your Saved English Vocabulary** Inside the popup, the My Words tab holds every word you've saved: • Shows the first 20 words, with "show more" so the list never feels overwhelming • Search, see IPA, play audio, read the original context sentence, and check the definition • Difficulty/frequency tags (e.g. Moderate / Advanced / Academy) in the list and drills **💪 Practice — Smart, Automatic, Brain-Friendly Review** The Practice tab turns your word list into learning: • **Smart spaced repetition** — DD Vocab chooses which words to show today, spacing reviews so they come back just before you'd forget. You remember more with less effort. • **5 drill types** — listen & choose, cloze fill (fill the blank), definition matching, hint recall, and sentence listening. Not just flashcards. • **AI Drills (optional)** — with a connected DeltaDaily account (or optionally your own Gemini API key), DD Vocab creates richer exercises from your own sentences: fill-in-the-blank, mini quizzes, and other context-based drills. **🎬 YouTube Caption Word Capture** Learn vocabulary while watching YouTube videos. When captions are on, every word becomes clickable — single-click any word to save it instantly. No pausing, no copy-pasting, no interruption. The video keeps playing while your word is saved in the background with the full caption sentence as context. Review later in your word list with a direct link back to the exact moment in the video. **🔊 Pronunciation on Every Word** Hear any word spoken aloud, both in the tooltip and in your word list. Build listening skills alongside vocabulary. **🔤 Optional Difficulty-Based Highlighting** DD Vocab knows English word frequency and difficulty, and lets you set your target level (e.g. Moderate, Advanced, Academy): • Turn on "Highlight target words on the page" to see good vocabulary candidates as you read • Off by default — nothing on the page changes unless you want it **🌐 Translation from English into Your Language** DD Vocab is for English learners — the source language is always English. With a connected DeltaDaily account, you can: • Choose your preferred target language (e.g. Chinese, Japanese, Spanish) • Get one-click translation of definitions or example sentences into your language, right inside the popup or drills • Stay in English most of the time, and use translation only when you need extra clarity **🎓 Ready on Install — No Sign-Up Required** Start immediately with 20 curated starter words across everyday, academic, professional, and current-events categories. No account, no email, no setup. **📤 Export & Integrations: Anki, Quizlet, DeltaDaily** • Import your existing English word lists (from text/CSV) • Export from DD Vocab in ready-to-import formats for Anki and Quizlet • Connect DeltaDaily to sync your vocabulary across devices and power deeper, structured English training — without manual copy-paste **Who is this extension for?** • ESL learners who are tired of abandoned word lists on Google Docs • Anyone who wants their word list **synced across devices** without manual export/import • Learners who want **translations** alongside definitions and IPA • Anyone who wants **AI drills without managing their own API key** • Serious college and graduate students reading English research papers • Professionals who want a complete English learning toolkit beyond just a dictionary ✅ Works offline — no account needed ✅ Lightweight (< 200KB) — won't slow your browser ✅ 100% free tier with local spaced repetition ✅ Privacy-first — we don't know you; you know us. Your data stays in the extension unless you choose to export or connect a service. **📄 Where Does DD Vocab Work?** | Content | Double-click tooltip | Right-click save | Smart highlighting | YouTube caption click | | **Any website (Chrome & Edge)** | ✅ | ✅ | ✅ | — | | **YouTube (captions on)** | ✅ (non-caption text) | ✅ | ✅ | ✅ | | **Google Docs / Sheets** | ✅ | ✅ | ✅ | — | | **Web-based PDF viewers** | ✅ | ✅ | ✅ | — | | **PDF in Chrome viewer** | ✗ | ✗ | ✗ | — | | **Acrobat, Word, Kindle** | ✗ | ✗ | ✗ | — | DD Vocab is a browser extension — it works inside Chrome and Edge browser tabs. Chrome's built-in PDF viewer uses a separate plugin that doesn't support extensions. 💡 **Tip for PDF readers**: Open PDFs in a web-based viewer like Google Docs or Mozilla PDF.js — then all DD Vocab features work because the PDF renders as normal HTML.