Spaced repetition · Leitner system

Practice & remember

Short flashcard drills that schedule themselves. Cards you know slip further into the future; cards you miss come back soon — so your time lands where it matters. Progress is saved on this device.

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Mastered of 64
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Prompt Engineering
8 cards

Techniques for getting reliable output from LLMs.

Mastered0/8
🐍
Python
8 cards

Core language mechanics every Python dev should know.

Mastered0/8
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JavaScript
8 cards

Modern JS fundamentals and async behaviour.

Mastered0/8
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Cybersecurity
8 cards

Foundational security concepts and common attacks.

Mastered0/8
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AI Foundations
8 cards

Machine-learning and LLM concepts from the ground up.

Mastered0/8
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Git & Version Control
8 cards

The everyday commands and ideas behind Git.

Mastered0/8
🗄️
SQL
8 cards

Query and model data in relational databases.

Mastered0/8
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Web & HTTP
8 cards

How browsers and servers actually talk.

Mastered0/8

How this works

This is the Leitner system— a proven, low-effort way to remember more by reviewing at the right moment. You grade yourself honestly, and each card's next review is scheduled for you.

1
Answer, then self-grade
Read the front, recall the answer, flip the card, then tell it the truth: Got it, Almost, or Missed. Honest grading is what makes the schedule work.
2
Five boxes space it out
Every card lives in a box from 1 to 5. Get it right and it moves up a box, so you see it less often. Miss it and it drops to box 1 to be relearned.
3
Come back when it's due
Higher boxes wait longer between reviews — roughly 1, 3, 7, then 16 days. You only study what's due, so effort goes where memory is weakest.
Box → review after:Box 1 · same sessionBox 2 · ~1 dayBox 3 · ~3 daysBox 4 · ~7 daysBox 5 · ~16 days

Your progress is stored only in this browser (localStorage) — nothing is uploaded, and there are no accounts to create.