Quartenson

Free Cognitive Training Tools

Free online exercises for memory, attention, visual scanning, and reaction time. No account required.

Reading Comprehension Practice

Check details, sequences, and main ideas with 5 or 10 questions per session.

Tags: Focus, Visual scanning

Start reading practice

Free Schulte Table Trainer

Find the numbers in order

Tags: Focus, Visual scanning

Start Free Trainer

Peg System Memory Trainer

Link numbered pegs to temporary targets

Tags: Memory

Start Peg System Trainer

Chunking Memory Trainer

Group, recall, and reconstruct

Tags: Memory

Start Chunking Trainer

Keyword Method Memory Trainer

Link sound cues to exact meanings

Tags: Memory

Start Keyword Method Trainer

Attention and visual scanning exercises

Choose Schulte tables to find numbers in order, or Visual Search to locate a target among similar distractors. Peripheral Awareness adds a different task: notice a brief off-centre target while identifying a central line. These exercises practise different tasks, so compare results within the same tool and settings.

Memory exercises and mnemonic tools

Visual Memory tests recall of patterns and sequences. For mnemonic practice, Story Chain connects items into a story, Peg System gives them numbered cues, Chunking organizes them into groups, and Keyword Method connects a sound cue to a meaning. For a memory palace, create a floor plan in Virtual Memory Palace Builder or choose a familiar route in Route Builder. Verify the route there, then use Memory Palace Trainer to attach and recall changing items.

Reaction time practice

Reaction Time Test measures your response to one unpredictable visual signal. Choose a sample of trials and review median time, fastest response, spread, and false starts. Keep the device, input method, and sample size consistent when comparing sessions; browser and hardware delays affect the measurement.

Guides for practice and progress

Learn a scanning exercise, compare memory techniques, or make your practice results easier to interpret.

Memory15 min read

Practical Guide to Mnemonics

Learn how mnemonic devices work and when to use chunking, chaining, memory palaces, peg systems, acronyms, and more, with step-by-step examples.

Schulte Table8 min read

What Is a Schulte Table?

Learn how Schulte tables work, why the classic 5×5 grid is used, how beginners should practise, and try a free online trainer with timing and mistakes.

Focus9 min read

Benchmark Cognitive Training Progress

Learn how to benchmark cognitive training progress with time, accuracy, mistakes, consistency, streaks, and Quartenson community and this-device comparisons.

Using the free training tools

Practical answers before your first session.

Do I need an account or an app?

No. These browser tools are free to use without an account or installation. Enable JavaScript for the interactive exercises. The separate mobile app is optional.

Which tool should I start with?

Pick one task that interests you: Schulte tables for ordered scanning, Visual Memory for patterns, or Reaction Time for a single-signal response. Start with a comfortable setting and open the tool's Guide before practising. You do not need to complete every tool.

Will my progress follow me to another device?

Local histories, settings, and saved memory palace routes stay in the browser where you use them. They are not an account-based cloud backup. Available history features vary by tool, and clearing site data can remove saved information.

Do these results measure intelligence or diagnose a condition?

No. Results describe a specific exercise and setup, not IQ, medical status, or fitness to drive. Practising a task does not guarantee broader improvements in memory or attention. Take a break if an exercise feels uncomfortable.