About FrEd
Learn vocabulary through sentences and spaced repetition.
How it works
Sentences at Your Level
Practice with real sentences tuned to your vocabulary level. Difficulty adjusts automatically as you improve.
Click Words You Don't Know
Tap any word you don't recognise to mark it for review. Build your personal vocabulary naturally as you read.
Spaced Repetition
Words you mark are scheduled for review using the FSRS algorithm. You'll see them again right before you'd forget them.
Frequently asked questions
Feedback
FrEd is a work in progress. Your feedback helps shape what comes next.
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Feb 19, 2026, 12:28 PM UTC