History

7 snapshots

Tracking since Apr 1, 2026.

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Date	Users	Rating	Reviews	Version
Apr 1, 2026	12	5.00	3	1.0.5
Apr 17, 2026	13	5.00	4	1.0.5
Apr 27, 2026	11	5.00	4	1.0.5
May 7, 2026	15	5.00	4	1.0.5
May 14, 2026	12	5.00	4	1.0.5
May 20, 2026	12	5.00	4	1.1.1
Jun 2, 2026	11	5.00	4	1.1.1
Now	10	5.00	4	1.1.1

Changelog

May 14, 2026

description

Vocabulary Builder — Learn Words Effortlessly

Build vocabulary with smart flashcards, spaced repetition (SM-2), and instant word lookup.
Translate across 12+ languages — fast, accurate, and distraction-free.

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FEATURES

Instant Word Lookup
Right-click any word to see its definition and translation instantly.

Multi-Language Support
Vietnamese · Chinese · Japanese · Korean · Spanish · French
German · Portuguese · Russian · Thai · Indonesian · Arabic

AI-Powered Translation (Optional)
Advanced translation powered by configurable AI services.
Bring your own API key and choose the model that fits your needs.

Smart Learning
Flashcards powered by the SM-2 spaced repetition algorithm to improve long-term retention.

Text Highlighting
Highlight text on any webpage using multiple colors for better focus and organization.

PDF Word Lookup
Look up words directly inside PDF files via the Chrome side panel.

Audio Pronunciation
Natural-sounding pronunciation for supported languages.

Gamification
Streaks, XP, levels, and progress tracking to keep you motivated.

Power User Tools
Keyboard shortcuts for faster and more efficient workflows.

Study Reminders
Configurable notifications to help build a consistent learning habit.

Offline-First
All vocabulary data is stored locally on your device and works offline.

Data Control
Export and import your vocabulary anytime.

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PRIVACY

No account required

No tracking

No analytics

Your data never leaves your device

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FREE TO USE

Core features work without any API key.
Optional AI translation requires your own API key.
You stay in full control of providers and costs.

Build vocabulary while you read. Right-click any word on any web page to define, translate, and save it — then review with flashcards and spaced repetition.

Vocabulary Builder turns the web itself into your study material. Look up unfamiliar words inline, translate to 12 languages, and save them to a personal deck that resurfaces on the right schedule. Works on regular pages and PDFs, in light and dark mode.

KEY FEATURES
✓ Right-click word lookup
✓ Translate in 12 languages
✓ Bring-your-own AI translation
✓ Flashcards with SM-2 spaced repetition — review at the optimal interval
✓ Audio pronunciation
✓ PDF side panel
✓ Highlight & remember — saved words stay highlighted next time you visit the page
✓ Streaks, XP, and daily goals — gentle gamification keeps you coming back
✓ Daily reminders — configurable notifications for study sessions
✓ Keyboard shortcuts — Alt+M / Cmd+Shift+M and customizable hotkeys
✓ Dark mode — system-aware with a manual toggle
✓ Cross-device settings sync — preferences and API keys roam across your Chrome browsers
✓ Export & import — back up your vocabulary as JSON anytime

PERFECT FOR
- Language learners reading articles, blogs, and documentation in a non-native language
- Students studying
- Researchers and professionals encountering domain-specific jargon
- Bilingual readers who want an instant, unobtrusive translator
- Anyone trying to build a daily reading habit and remember more of what they read

HOW IT WORKS
1. Install Vocabulary Builder and pin it to your toolbar
2. Browse any web page or PDF and select a word
3. Right-click → "Look up word" — definition, translation, and audio appear inline
4. Save the word with one click; it joins your flashcard deck
5. Review later — the SM-2 algorithm shows each word at the right interval

PRIVACY
- Vocabulary, study statistics, and progress are stored locally on your device using chrome.storage.local. They are never uploaded.
- Settings (theme, language pairs, hotkeys) and your AI-provider API keys sync across your signed-in Chrome browsers via chrome.storage.sync, so you don't have to re-enter them on a new machine.
- Selected text is sent to translation and dictionary APIs only when you trigger a lookup. We never read or transmit full page contents.
- AI translation uses YOUR OWN API key going directly to your chosen provider. The extension does not host or proxy this traffic.
- No analytics, no telemetry, no account required.

PERMISSIONS EXPLAINED
- "Storage" — saves your vocabulary, stats, and settings on your device
- "Context menus" — adds the right-click "Look up word" item
- "Active tab" — reads the focused tab only when you invoke a lookup
- "Notifications" — shows daily study reminders (you can turn them off)
- "Alarms" — schedules the daily reminder time
- "Side panel" — opens the lookup panel for PDFs
- Network access is limited to dictionary, translation, and AI endpoints listed in the manifest. AI endpoints are only contacted when you opt in.

Free, open source, and ad-free. Install Vocabulary Builder and start turning every page you read into vocabulary you actually remember.

Permissions & access

Permissions: storagecontextMenusactiveTabnotificationsalarmssidePanel
Host access: https://api.mymemory.translated.net/*, https://api.dictionaryapi.dev/*, https://api.openai.com/*, https://generativelanguage.googleapis.com/*, https://api.x.ai/*, https://translate.google.com/*

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