Study Only on this device
Reading ruler
A quiet place for your text. One highlighted line to help you keep your place.
Free, always. No account needed.
Opening your local material…
A small tool. A useful practice.
Paste plain text, choose a comfortable size and spacing, then tap a line or move with the arrow keys. Your settings and position are saved in this browser. Changing the layout keeps the same passage in view.
Sources & limits
This is a display utility. It does not measure or promise faster reading, better comprehension or treatment for dyslexia. The W3C guidance below concerns adjustable text spacing and access to content; it is not evidence of a treatment benefit.
W3C Web Accessibility Initiative. Understanding Success Criterion 1.4.12: Text Spacing (WCAG 2.2).A few things to know
Does this improve reading speed or treat dyslexia?
No such claim is made. Use the ruler if you find it convenient for keeping your place. There is no speed test or medical assessment here.
Is everything here free?
Yes. Create, practise, import, export and print without an account or payment.
Where is my material saved?
In this browser on this device. It is not uploaded or synced. Export JSON regularly, especially before clearing browser data or changing devices. Anyone using this browser profile may be able to read it.
Can I move my work to another device?
Export a JSON backup, transfer the file yourself, then import it on the other device. Check the preview before replacing that browser’s saved material.
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