Your fonts. Any website. 1,900+ Google Fonts, custom colors, dark mode & dyslexia support — set up your Safari extension in 30 seconds.
FontFlex for Safari – Accessible Reading for Everyone
FontFlex is a powerful Safari extension designed for anyone who struggles with reading online. Whether you have dyslexia, visual impairments, light sensitivity, or simply find default web fonts uncomfortable, FontFlex puts you in control of your reading experience.
DESIGNED FOR ACCESSIBILITY
FontFlex helps users with:
• Dyslexia – Choose readable fonts like OpenDyslexic, Comic Sans, or custom spacing
• Visual impairments – Increase text size, adjust contrast, and enhance legibility
• Light sensitivity – Customize text and background colors for comfortable reading
• Eye strain – Fine-tune font weight, line height, and letter spacing
• ADHD & neurodivergence – Personalize your browsing environment to reduce distractions
POWERFUL CUSTOMIZATION
Transform any website with:
• 1,900+ Google Fonts including San Francisco, Verdana, Arial, and handwriting styles
• Dynamic text size adjustment with minimum font size protection
• Text and background color customization for optimal contrast
• Advanced typography controls: font weight, line height, kerning
• Profile system to save different settings for different websites
• Instant application – changes apply automatically as you browse
FREE FEATURES
• Customize fonts on any website
• Adjust text sizes dynamically
• Create multiple reading profiles
• User-friendly interface
• No tracking or data collection
PRO FEATURES – Enhanced Control
Unlock advanced accessibility with Pro:
• Text and background color customization
• Fine-tune font weights for better readability
• Adjust line heights and letter spacing (kerning)
• Unlimited custom profiles for different websites
• Text decoration controls (bold, italic, underline)
• Auto-apply settings on page load
• Family Sharing included
PRIVACY FIRST
FontFlex respects your privacy. We never track your browsing, collect personal data, or use third-party advertising. Your settings stay on your device.
REAL IMPACT
Join thousands of users who have transformed their web reading experience. FontFlex makes the internet more accessible, comfortable, and enjoyable for everyone – regardless of visual abilities or reading preferences.
Whether you're reading articles, studying online, or browsing your favorite sites, FontFlex helps you read with clarity and confidence.
READ EVERY WEBSITE YOUR WAY
Make the font size bigger or smaller on any web page, and it stays that way the next time you visit. Switch to a clean sans serif typeface when a site's default is hard to follow, or choose a serif when you want a calmer, book-like page. Turn on dark mode colors for night reading, or a warm cream background to take the glare out of long articles.
Everything happens inside Safari. There is no second browser to learn and nothing to copy or paste - open a page the way you normally would and your typeface, size and colors are already applied.
BUILT FOR EVERY READER
- Low vision and large print readers who need text bigger than a site allows
- Students reading long articles and research pages in the browser
- Older readers who would rather not zoom in on every single page
- Night readers who want a darker page and softer contrast
- Designers and developers checking how a page looks in another typeface
ON ALL YOUR DEVICES
Optional iCloud sync keeps your fonts, colors and profiles the same on iPhone, iPad and Mac, so a site you set up once reads the way you want everywhere.
SUBSCRIPTION OPTIONS
• Weekly: $4.99 USD
• Yearly: $24.99 USD
Payment charged at confirmation. Subscriptions auto-renew unless turned off 24 hours before period ends. Manage in iTunes Account Settings.
Terms of Use: https://tsf.sufiyanyasa.com/terms
Privacy Policy: https://tsf.sufiyanyasa.com/privacy
FontFlex – Read better, browse better.
Uses low vision font, sometimes decreases contrast
SpaceCat Moonster
Mainly we love this app. I was extremely impressed to have Atkinson Hyperlegible available. This font was created by the braille institute specifically for low vision. I was also able to change the colors for someone with a rare color blindness. However we have noticed that it sometimes decreases contrast of elements in webpages, or can cause other issues, likely due to many websites not being able to handle larger font size. Thankfully it looks easy to turn it off for specific websites and just use VoiceOver as needed.
Developer Response
Thank you for the feedback. Since Atkinson Hyperlegible is accessible font, I have made it free for all.
Make Safari Look and Feel Fun!
AertoneFX
Ever think “that’s the font”? Well, with FontFlex, you can bring custom fonts to life with every website you visit! From font choices between System Fonts and Google Fonts, to customizations such as font sizes, font thickness, and even font colors, FontFlex has it all. Turn all websites into the one font that just feels right, or switch it up and use Profiles to make different websites follow different font styles and customizations that bring a website’s look and feel to life. There’s also an option to disable font changes entirely on any given website, in case certain websites should be excluded from the FontFun. Best of all, FontFlex collects no personal data, and all changes made to websites are done locally, so FontFlex can be trusted to just work without worrying about what data it might collect next. Last, but certainly not least, the developer is very responsive to emails, and more than willing to help with any issues that arise, or any features suggestions that are on your mind, making FontFlex the ultimate flex to use with Safari!
Developer Response
Thank you for the feedback.I am glad that FontFlex is helpful and fun to use. Feel free to suggest any fun ideas that would make FontFlex more enjoyable to me@sufiyanyasa.com
What IOS Should Be System Wide
Mert_63
iOS as an operating system has been out for a very long time….And with the use of great extensions such as this one…we can finally change the font on the inter web as a whole. I just wish Apple would enable to use of different fonts system wide….Until then…..this app is the closest you will get to it. This app is one of the best mods you can currently make to safari. I love it! Great job developer!
Developer Response
Thank you for being the first review and the best feedback.
Amazing app
Rob_7904
I absolutely love this app. It’s simple to set offers plenty of options to make reading articles in safari so much more pleasant. This is a set and forget kind of app because it just works and works well. Of course you can jump into settings anytime and change font, font weight, color etc etc. more than worth the small price.
Developer Response
Thanks for the great review! Glad to hear the app's working well for you and making reading in Safari more enjoyable.
FontFlex: Fonts for Safari
This update is all about accessibility — because FontFlex should work for everyone, no matter how you read or navigate your phone.
VoiceOver users can now hear exactly what every font, size, weight, and style control does. These controls were previously silent to VoiceOver — that's fixed.
Buttons you tap often (close, favorite, dismiss) are now bigger and easier to hit.
Text throughout the app now resizes properly when you increase your device's text size in Settings.
Onboarding animations now respect Reduce Motion, so they won't play if you've turned that on.
We also fixed several places where text was showing in English even when your device language wasn't — more of the app now displays correctly in your language.
Thanks for reading with us.
Version 4.8.15
The developer, Sufiyan Yasa, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Purchases
Identifiers
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
