Lexend

See it for yourself

Same paragraph, eight widths of Lexend. Slide across and notice where reading stops feeling like work.

Reading should not be hard work. Good tools meet you where you are: they change the page instead of asking you to change. Try the controls and watch this paragraph respond — nothing you do here leaves your browser.

How it works

Ordinary letters, kept ordinary

Lexend does not redraw the alphabet. A Lexend b is the b you already know — no heavy bottoms, no reshaped tails. That is the opposite approach to OpenDyslexic, which changes the letter shapes themselves. Here the letters stay conventional, and something else does the work.

One dial: expansion

That something is expansion. Each step in the series makes the letters a little wider and puts a little more air between them — the same text, progressively more spread out. There are seven steps, Deca through Zetta, and the slider in the demo above walks you through every one of them.

Why more room helps

When letters sit too close together they start to visually interfere with each other — researchers call it crowding, and for many readers it is a big part of why a dense page feels like work. Expansion attacks exactly that. If you want the fuller story, we wrote about letter, word, and line spacing on its own page.

Where it came from

Lexend did not start with a type designer. It started with Bonnie Shaver-Troup, an educational therapist who worked for years with struggling readers — and kept noticing the same thing: when she made text wider and more spaced out, many of them read better. Not a theory first. An observation, over and over, with real students.

To turn that observation into something anyone could use, she partnered with the type designer Thomas Jockin, and together they built it into a typeface. Lexend was released free through Google Fonts in 2019, and it is open source under the SIL Open Font License — so it can be bundled into apps and tools at no cost, which is how it ends up in places like Helperbird.

The most telling design decision is that it shipped as a series — seven expansion steps, Deca through Zetta — because the helpful amount of expansion differed from reader to reader. Rather than pick one width and declare it correct, the font admits up front that one size did not fit all.

Who it helps — honestly

The honest picture first: Lexend grew out of one therapist's observations, and it does not yet have a large base of independent trials behind it. What you are choosing here is a preference, not a proven treatment — some readers find an expanded step noticeably calmer to read, and others feel no difference at all.

The font is unusually upfront about that. It ships as seven steps precisely because one width did not work for everyone, so the question is never "does Lexend work" but "which step, if any, works for you." That is a question the demo above can answer in about a minute — slide across and notice where the paragraph stops feeling like effort.

One practical point in its favor: because the letterforms stay conventional, Lexend looks like a normal sans-serif to everyone else. That makes it more workplace-acceptable than novelty fonts — you can read a report or a shared doc in it without the page announcing anything about you. If you are curious how it compares to a font that goes the other way, see our OpenDyslexic page, and if spacing alone is what helps you, that works in any font — here is how spacing changes reading.

Try it in Helperbird

Helperbird brings these tools to any website, PDF, or Google Doc — no copying text anywhere, and nothing you read leaves your browser.

Dyslexia fonts Switch any website or Google Doc to Lexend at the width that suits you.

Step-by-step: How to switch any page to a dyslexia font

Questions people ask

Is Lexend free?

Yes. Lexend is open source under the SIL Open Font License and is also built into Google Fonts, so it costs nothing to use anywhere.

What do the Lexend names like Deca and Giga mean?

They are width steps. Plain Lexend is the narrowest; Deca, Exa, Giga, Mega, Peta, Tera, and Zetta each expand the letters and spacing a little more. The demo above lets you feel the difference.

Which Lexend should I use?

Whichever reads best to you. The research behind Lexend found the helpful amount of expansion differs from person to person, which is why it ships as a series rather than one font.