Vocabi

Product Introduction

1. Definition: Vocabi is a browser-based vocabulary building and word translation extension for Google Chrome, falling under the technical categories of language learning tools, spaced repetition software (SRS), and in-browser translation utilities.
2. Core Value Proposition: Vocabi exists to solve the problem of vocabulary attrition by enabling language learners to instantly capture, translate, and memorize new words from any website they read, using a scientifically-backed spaced repetition system without requiring an account or internet connection for review.

Main Features

1. In-Page Instant Translation: This feature provides on-demand translation directly within the context of any webpage. Technically, it works by injecting a script that listens for mouse hover and text selection events. When triggered, it sends the selected word or short phrase (up to 3 words) to a translation API and displays a non-intrusive popup with the translation and a save button. It supports two distinct interaction modes: hover (for single-word lookups) and select (for phrases).
2. One-Click Vocabulary Capture: This feature allows for seamless saving of new lexical items. How it works: from the translation popup, a single click on the "Save" button adds the word or phrase, along with its translation and the source context (the sentence it was taken from), to a local IndexedDB database within the user's browser. This creates a structured, personal dictionary without any manual copy-pasting or tab switching.
3. Integrated Spaced Repetition Flashcards: This feature automates vocabulary review. The system uses an algorithmically managed spaced repetition system (SRS). Saved words are automatically converted into digital flashcards. The SRS algorithm schedules reviews at optimal, increasing intervals (e.g., minutes, hours, days, weeks) based on user performance ratings (e.g., "Again," "Hard," "Good," "Easy"), which is proven to move information from short-term to long-term memory efficiently.
4. Offline-First, Private Architecture: A core technical feature is its local data storage model. All user data—saved words, flashcard progress, settings—is stored exclusively in the browser's local storage and IndexedDB. This enables full offline functionality for flashcard reviews and ensures privacy by default, as no personal vocabulary data is transmitted to external servers. The extension requires internet only for the initial translation API call.

Problems Solved

1. Pain Point: The "look-up-and-forget" cycle, where language learners frequently translate a word while reading but fail to retain it for long-term use, breaking their reading flow and hindering vocabulary acquisition.
2. Target Audience: Self-directed language learners who consume authentic content (news, blogs, literature), students preparing for language proficiency exams (TOEFL, IELTS, DELE), professionals needing to master domain-specific terminology in foreign languages, and travelers building practical vocabulary from real-world web sources.
3. Use Cases: A user reading a Spanish news article on El País can hover over unknown words, save them instantly, and later review them with SRS flashcards. A student researching for a paper in German on Wikipedia can highlight technical terms, save them, and systematically memorize them. A professional can decipher jargon on a foreign competitor's website and build a relevant business vocabulary list.

Unique Advantages

1. Differentiation: Unlike standalone flashcard apps (Anki, Memrise), Vocabi integrates directly into the browsing and reading workflow, eliminating the need to switch contexts to save words. Compared to other translation extensions, it focuses specifically on vocabulary acquisition with a built-in, automated SRS review system, rather than just page-wide translation.
2. Key Innovation: The combination of contextual, in-page word capture with an automated, browser-native spaced repetition system in a zero-account, offline-first package. The technology stack prioritizes user privacy by design, storing all sensitive learning data locally, which is a significant advantage over cloud-based learning platforms that require registration and data syncing.

Frequently Asked Questions (FAQ)

1. Is Vocabi free to use? Yes, the Vocabi Chrome extension is completely free to install and use, with no account registration, subscription fees, or premium tiers, offering unlimited word saves and flashcard reviews.
2. How does Vocabi's translator work? Vocabi uses a translation API to provide instant definitions and translations; it supports 10 languages including English, Spanish, French, German, Italian, Portuguese, Chinese, Arabic, Hindi, and Russian for both the interface and translation functions.
3. Can I use Vocabi without an internet connection? You can review all your saved words and flashcards offline without an internet connection; an active connection is only required for the initial translation when you hover over or select a new word on a webpage.
4. What happens to my saved words if I uninstall the extension? Because Vocabi stores all data locally in your browser, uninstalling the extension will typically delete your vocabulary list and progress; it is recommended to export your data manually if available before uninstallation.
5. Does Vocabi work on all websites? Yes, the Vocabi vocabulary builder works on virtually any website accessible in the Chrome browser, including news sites, blogs, social media, and PDFs viewed in-browser, as it operates on the page's rendered text content.