Vocabulary Builder
Build your vocabulary with flashcards, definitions and a quick quiz — saved in your browser — free, fast and private.
10 starter words are loaded. Add your own words, or click Quiz Me to test yourself.
How to use Vocabulary Builder
- Click Show My Words to see the starter list.
- Add your own word and definition, then click Add Word.
- Click Quiz Me — guess the word from its definition.
- Words are saved in your browser on this device only.
Note: this tool runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Are my words saved?
Yes, on this device only, in your browser’s local storage. They are never uploaded.
Is the Vocabulary Builder free?
Yes, it is 100% free with no sign-up. Your data stays in your browser.
Do I need to install anything?
No. It works in any modern browser on phone, tablet or computer.
Is my data uploaded?
No. This tool runs entirely in your browser and your input is never uploaded to a server.