Measure working memory with research-grade precision.
An N-back assessment platform for cognitive load, attention, and mental fatigue built for multi-participant studies. Create a project, share a link, collect results.
Designed for real research
Everything you need to run studies with multiple participants.
Multi-researcher accounts
Create a researcher account, build projects, and invite collaborators to view shared results.
Shareable test links
Each project gets a public link. No login required for test-takers.
Participant result lookup
Participants can retrieve their own results by email — privately and instantly.
Platform capabilities
Built on solid cognitive science methodology.
Letters, Shapes & Rotated-E
Three stimulus modalities with a custom shape library and SVG-rendered rotations.
0-back to 3-back
Calibrated difficulty progression with priming trials and configurable target rates.
Auto or self-paced
Default 3 s per screen (0.5 s display + 2.5 s response). Fully adjustable.
NASA-TLX questionnaires
Per-level + global mental, physical, temporal demand, performance, effort, frustration & 9-point Paas effort.
Reaction-time precision
performance.now() RT capture, hits, misses, false alarms, d-prime, criterion.
Export to CSV / SPSS
Long-format trial data and wide-format summary. Open in Excel, R, or SPSS.
How it works
Create account
Sign up as a researcher in seconds.
Build a project
Configure stimuli, levels, timing, and questions.
Share the link
Participants take the test, no login required.
Analyse results
View all sessions from your dashboard.
Ready to run your first study?
Create an account, configure your N-back project, and share the link with participants.
Looking for your test results?
Enter your email to retrieve all sessions associated with it.