Accessibility

Last updated: October 14, 2026

What we do

• Readable text: we use Atkinson Hyperlegible, a font designed for low-vision readers, with strong colour contrast.
• Everything works with a keyboard, with a clear focus outline.
• Every sign comes with text: each signed word is also shown as a caption, and every dictionary sign has a written description of the handshape, location and movement.
• You control the motion: signing can be slowed down to 0.4×, replayed, mirrored for left-handed learners, and zoomed in on the hands.
• Pages work on phones and when zoomed to 200%.

Known limits

• The 3D signer is visual. Screen-reader users get the same words as text, but not the signs themselves.
• Our signs are word by word and don't follow full ASL grammar yet. Sign4K is a helper, not a replacement for a human interpreter.
• Some animations on the home page are decorative. They become calmer when your device has “reduce motion” turned on.

Built with the Deaf community

We want Deaf and hard-of-hearing people to shape Sign4K. If a sign looks wrong, feels unnatural or is a regional variant we should know about, please tell us. Every correction makes the signer better for everyone.

Tell us about a barrier

Email hello@sign4k.com and tell us the page, what you were trying to do, and what got in the way. We aim to reply within 5 working days.