01Fonts
There when you need it
Select text and the panel appears. Click away or press Esc and it's gone.
Select any text to inspect its font, size, weight, colours and WCAG contrast. Pick any pixel on the page with a magnifying loupe.
Read fonts,
pick colours.
All in one panel
Select text for its font, colours and contrast. Pick a pixel for anything else. It all shows up in one small panel, right on the page.
02Colours
A magnifying loupe picks any pixel on the page
03Contrast
Contrast is checked through every layer behind the text
04Sources
Every pick names the element and CSS it came from
Built different
Serifio is built around the details other tools skip: how it appears, where it sits, what it checks and what it keeps to itself.
Out of your way
No popup to open and nothing taking over your screen.
Stays where you put it
Drag the panel anywhere and it opens there again on that site.
Keeps working
Hundreds of automated tests run in a real Chrome before every release.
Stays private
No analytics or tracking. What you select never leaves your browser.
Accurate
Contrast counts every layer behind the text. A dot flags a fallback font.
100% free
No account, no ads and no upgrade prompts.
Add to Chrome