StudyDeck
Free and open source

Study smarter, not harder

Quizzes, flashcards, and spaced repetition in one place. Track your progress and master any course.

How StudyDeck works

Six tools, one platform. No sign-up required.

Quizzes

Test yourself with adaptive questions

Multiple choice, true/false, short answer, and calculation questions across three difficulty levels. Instant feedback after every answer.

Flashcards

Flip, rate, repeat

Cards scheduled by spaced repetition so you only review what you need to.

Co-Quiz

Study together

Share a room code and quiz with friends in real-time. Peer-to-peer, no accounts.

Spaced Repetition

Science-backed review scheduling

The SM-2 algorithm calculates the optimal time for your next review. Cards you know well appear less often. Cards you struggle with come back sooner.

Progress

Know your weak spots

Mastery tracked by topic and chapter. Score trends show your improvement over time.

Course Materials

Slides and textbooks, right here

Built-in PDF viewer for lecture slides, textbooks, and assignments. No more switching between tabs.

Ready to start?

No sign-up, no paywall. Just pick a subject and go.