Work and personal-use collection
Separate tools that organize real work from short tasks that record browser performance. Choose by the action you need, and do not treat a score as evidence of productivity, health, or professional fitness.
Pomodoro and the seven-day planner organize time and links; they do not observe work quality. Reaction, search, memory, and interference pages record narrow task outcomes under the selected settings.
Use matching sessions for personal observation and retain the underlying error counts. A single combined number cannot represent the varied demands of work, caregiving, study, or daily life.
Choose a timer for a real task boundary, breathing cues for an optional paced pause, Visual Search or Symbol Search for target scanning, Stroop or Flanker for conflicting cues, and memory pages for immediate recall. Each has a different rule and denominator.
Device latency matters for response timing, screen size matters for scanning and tracking, and practice changes familiarity. Keep those conditions steady and prefer several recent sessions over a personal best.
These pages are not validated for hiring, promotion, driving, medication, diagnosis, or workplace accommodations. They should never be the sole input to a decision affecting another person.
These questions stay tied to the visible content on this page.
Continue with tools that pair naturally with this page.
Set focus, short-break, long-break, and cycle lengths, run the timer, and keep completed focus blocks in local history.
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Answer color-word, reverse, or shape rules and review accuracy, median timing by condition, and the page-defined interference difference.
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Find one target in symbol, letter, or number boards and review completion time, errors, difficulty, and local history.
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Follow box, 4–6, or 3–3 visual breathing cues for one, three, or five minutes with optional sound.
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