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About this tool
Measure your short-term working memory capacity with standard forward and reverse digit span tests.
Digit Span Test is a free neuroscience tool that runs entirely in your browser — nothing to install, no account to create, and your data never leaves your device. Open the page, add your input, and get a clean, copy-ready result in seconds.
Open Digit Span Test on AltFTool — it loads instantly in your browser.
Add your input to the workspace.
Adjust the options until the result looks right.
Copy or download the output and put it to work.
A focused workspace for one-off content, data, or planning jobs — open it, use it, done.
Start with a rough input and iterate until the result matches exactly what you need.
Copy or download the output for your project, document, or daily workflow.
Yes — Digit Span Test is completely free on AltFTool, with no signup, no trial limits, and no hidden costs.
Yes. Digit Span Test runs in your browser, so what you enter or upload stays on your device instead of being sent to a server.
Measure your short-term working memory capacity with standard forward and reverse digit span tests. It's built for quick, everyday neuroscience tasks with results you can copy or download straight away.
Yes — Digit Span Test works in any modern browser, on desktop, tablet, and mobile, with the same features everywhere.