Click any element to read its styles, pull a whole page’s palette, fonts and images in one pass, check contrast as you go, and export straight to CSS, SCSS, JSON or Tailwind. Everything DevTools makes you dig for, one panel away.
Hi PH! I'm Leon, a CS student at ETH Zurich — PeekCSS is my first extension.
I built it because CSS Peeper (500k+ Chrome users) never came to Firefox, and every "any alternative?" thread ended the same way. So: hover any element for its computed CSS, scan a whole page's colors and fonts in one pass, export straight to CSS/SCSS/JSON/Tailwind, and get AA/AAA contrast badges without opening DevTools.
Free tier is genuinely free forever, no account needed. Nothing about the pages you inspect is ever sent anywhere — the only network call is an optional license check if you go Pro.
Live on Firefox and Chrome now. What would you want from a tool like this that I've missed? I'll be here all day for questions.
Report
finally something that skips the digging around in computed styles. pulled a whole page's palette and fonts in two clicks, contrast check right there is a nice touch.
Honestly, the click-to-copy css output is way faster than digging through devtools, and grabbing the whole palette in one pass is honestly kind of addictive. Solid pick.
Report
Maker
@iltekinl67936 I‘m glad you enjoy it! I am also very open to feature wishes and improvement suggestions if something was tricky 🫶
I have been waiting for this to be available for firefox for a very long time. Makes things a lot easier, 👍
What needs improvement
adding a "find similar fonts option" and a "copy html+css" option for the inspector. And bulk-downloading the colors to figma/pdf
vs Alternatives
Because its available on all browser, also on firefox and firefox-based browsers, it is cheaper than the competition and under active development. The small starting community also makes it possible to take direct influence with the development process.
finally something that skips the digging around in computed styles. pulled a whole page's palette and fonts in two clicks, contrast check right there is a nice touch.
@smailekglvldf thankyou, i am very happy its helpful
Honestly, the click-to-copy css output is way faster than digging through devtools, and grabbing the whole palette in one pass is honestly kind of addictive. Solid pick.
@iltekinl67936 I‘m glad you enjoy it! I am also very open to feature wishes and improvement suggestions if something was tricky 🫶