Play a browser-based N-back task online with no download and no signup. Try Single or Dual mode, test working memory from 1-back to 4-back, and track local scores on your own device.
An N-back test is a working-memory task where you compare the current stimulus with the one from N rounds earlier. On this page, you can run the task directly in your browser, without downloading software or creating an account.
Use Single N-back when you want to track position only. Switch to Dual N-back when you want a harder working-memory test with both visual positions and spoken letters in the same session.
In Single mode, one field lights up in a 3x3 grid. Press `A` when the current position matches the one from N rounds earlier.
In Dual mode, the browser also speaks a letter. Press `A` for a position match and `L` for a sound match when they repeat at the selected N distance.
Choose 1-back to 4-back, set the number of rounds, and use presets or a custom rhythm before each session. Lower N and slower rhythm work well for warm-up rounds, while higher N and faster rhythm create a more demanding cognitive test.
This version is designed for quick repeat sessions in a browser. You can test the task on desktop, tablet, or phone and restart immediately with a different setup.
Finished runs show score, hits, misses, false alarms, and accuracy. If you save a result, it stays in local browser storage on your device.
Use this N-back task to compare your own runs across different N-levels, modes, and rhythms. It is best treated as a repeatable browser-based working-memory challenge, not as a medical or clinical diagnosis.
Single N-back tracks one stream only: the visual position in the grid. Dual N-back adds a second stream with spoken letters, so you monitor both position and sound at the same time.
Yes. You can run the task directly in your browser as a repeatable N-back test, choose your setup before each session, and save local results for comparison.
Yes. The page supports keyboard shortcuts on desktop and large touch buttons on phones and tablets.
Highscores are stored locally in your browser only. No account and no cloud sync are required.