For dyslexic readers
FontFlex switches Safari to OpenDyslexic, for free, and adds the spacing and size that make long pages easier. It works on every site, automatically.
Free download · OpenDyslexic and text size are free · Pro optional
The quiet cost of hard-to-read pages
Small, thin type and tight lines make readers work harder. Many give up halfway down the page, and the words were never the problem.
The quiet cost of hard-to-read pages
Small, thin type and tight lines make readers work harder. Many give up halfway down the page, and the words were never the problem.
Dyslexia is different for everyone. Try fonts and spacing on this sample text.
news.example.com
Many websites pick thin, small type with tight lines to look sleek. For readers with dyslexia, low vision or tired eyes, that styling turns a short article into hard work.
A clearer typeface, a little more space between lines and letters, and softer colors can make the same words feel calmer. The best settings are personal, so try a few.
Made for dyslexia
Research points to size and spacing as much as typeface. FontFlex gives you all three.
Heavier letter bottoms are designed to stop letters from seeming to flip or swap. Switch every website to it in one tap.
Set a minimum text size once. FontFlex remembers it on every site, so there is no zooming page by page.
Try other research-backed fonts, including Lexend, Atkinson Hyperlegible and Lexia Readable.
Crowded text is harder to decode. Add letter spacing and line height until words stop running together.
Many dyslexic readers find pure white pages harsh. Pick a cream or pastel background and softer text.
Bold the first letters of each word to guide your eyes along the line, in the style of bionic reading.
Screenshots
How it works
Free on the App Store for iPhone, iPad and Mac. One download covers all three.
Open Settings › Apps › Safari › Extensions, switch on FontFlex and allow it on all websites. The app walks you through it.
Choose a font, size and spacing once. Every page you open in Safari reads that way from then on.
Reviews
“I am dyslexic and obsessed about finding the right font to read on the web… I don’t think I can imagine browsing the web without it anymore.”
★★★★★Vishuddha Thakkar, United Kingdom
“It allows me to use Atkinson Hyperlegible as the font that Safari uses to display all websites. I find that this greatly increases readability.”
★★★★★Tim from Perth, Australia
“As a visually impaired person, this is super helpful for automating making sites readable that won’t work with Reader Mode.”
★★★★★rbfrappier, United States
“The settings can be customised per website… Highly recommended and I’m really happy for the ability to read comfortably on any given website.”
★★★★★Kind Darius, Malaysia
“This is a lifesaver. Now I can easily change my font to an easy to read dyslexic font! Wonderful.”
★★★★★Dreadnox71, United States
“It helped me greatly with reading since words tend to cross each other in my eyes.”
★★★★★jakeyhachi, Singapore
Quotes from public App Store reviews.
FAQ
Yes. OpenDyslexic and OpenDyslexic Alta are free, along with text size. You never need Pro to read every website in a dyslexia font.
Research is mixed. Studies have not shown that OpenDyslexic reliably improves reading speed for everyone, but many readers find it more comfortable. Larger text and extra letter and line spacing have stronger evidence. FontFlex lets you try each and keep what works for you.
Popular choices are OpenDyslexic (free), Lexend, Atkinson Hyperlegible and Lexia Readable (Pro). Lexend was designed around letter spacing; Atkinson Hyperlegible makes similar letters easier to tell apart.
Yes. FontFlex works on any iPhone, iPad or Mac with Safari. Schools can contact us about FontFlex For Schools, a version with every feature included.
Reader shows a stripped-down article view with a few fonts, and only on pages that support it. FontFlex changes the real page, on every site, automatically.
Download FontFlex, turn it on in Safari, and pick OpenDyslexic. No account, no trial countdown.
