Change the font on any website: three built-in typefaces (Noto Sans, Source Han Sans, Arial) or any font installed on your device.
Chrome & Edge extension
Optimize web fonts
Improve reading comfortOne-click switchNo tracking
FontFixer is a font changer for Chrome and Edge that makes any website easier to read. Pick a typeface, set the text size, and choose a text or link colour for the page you are on; the change appears as you drag, without a reload. Save the look for that site and it returns every time you visit. Three typefaces are built in, and the fonts already installed on your computer can be added with one click. No account, no ads, no tracking.
Runs locallyNo trackingChrome & Edge
Free + Premium · Chrome & Edge
01
Everything it does
The core features at a glance.
Live preview: font, size and colours update on the open page as you move the slider. Close the popup without applying and the page returns to normal.
Text size on a slider, from 50% to 500%, without browser zoom.
Text colour is optional and off by default, so a site keeps its own palette until you decide otherwise.
Link colour is separate, so links stay recognisable while body text changes.
Saved per site: every website remembers its own typeface, size and colours.
Also included
- Auto Apply: one switch per site. On, the saved look returns on every visit; off, nothing changes until you click Apply & Save.
- A tick on the toolbar icon shows when the current site already has a saved look.
- One-click Reset restores the original fonts and colours and forgets the site's settings.
- Six languages: English, Simplified Chinese, Japanese, German, Spanish and French, following your browser language.
02
Free vs Premium
The free tier is a complete tool, not a trial. Premium is optional.
Free
all three built-in fonts, your installed fonts, the size slider, both colour overrides, live preview, Auto Apply, Reset, and up to five saved sites. At five sites you can still change settings for sites you already saved, and preview a new site without saving it.
Premium
unlimited saved sites, plus export and import of your configurations as one backup file, so a new computer does not mean starting over. One key activates on two browsers, and removing the licence from one browser frees that slot again.
No licence is needed to change fonts. Every free feature works without an account. Premium asks the licence server for a check about every two hours. It keeps working while you are offline; a failed check never switches the paid features off.
Private by design
Your data stays on your device. No account, no analytics, no tracking. Read exactly what is stored and when the extension uses the network.
Local processingNo accountOptional licence
Read the privacy policy
Support the developer
💌 A Note to You
Thank you for using FontFixer. I built this tool because I often encountered websites with blurry, small, or ugly fonts.
If it helps you read more comfortably, that's already the best reward I could ask for.
If you'd like to ☕ buy me a coffee, I'd really appreciate it — it keeps me motivated to make FontFixer even better.
Ko-fi sponsorship is purely voluntary and does not affect any features. Sponsorship has no binding to extension functionality — it is solely user-initiated support.