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Firefox-native · Chrome & Edge too · Actively maintained

Lift colors, fonts and assets from any site.

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.

No account needed to start. Pro unlocks exports, ZIP downloads & font pairing.

PeekCSS sidebar inspector on a live page
1 click
Whole-page palette, fonts and images
AA / AAA
Contrast checked on every color pair
~103 kB
No bloat, no trackers, no account to start

Built for front-end developers, designers, freelancers and anyone who rebuilds, audits or borrows from the web.

Why not just use DevTools?

DevTools inspects one element. PeekCSS reads the whole page.

DevTools is built for debugging — it answers “why is this element doing that?” brilliantly. It was never built to answer “what is this design made of?” That question takes dozens of clicks across three panels, and you still end up copying hex codes by hand.

Task
Browser DevTools
PeekCSS
Get a page’s full color palette
DevToolsClick elements one by one, copy each hex by hand
PeekCSSOne scan — up to 120 colors, deduplicated and tallied by use
Download the images off a page
DevToolsNetwork tab, filter by type, right-click each asset
PeekCSSA thumbnail grid — save one, or all of them as a ZIP
Check text contrast
DevToolsHover the right swatch on the right rule, one pair at a time
PeekCSSEvery pair scored AA / AAA, with failures listed for the page
See which fonts a page actually uses
DevToolsComputed tab, per element, no overview
PeekCSSEvery family ranked by usage, with weights, sizes and roles
Get it into your codebase
DevToolsRetype values into your stylesheet
PeekCSSExport CSS variables, SCSS, JSON or a Tailwind config

PeekCSS doesn’t replace DevTools — keep it for debugging. This is the panel you open when you’re building, not fixing.

Overview Free account · Pro exports

A page's colors and images, in one pass.

Scan once and get the whole design system: every color with how it's actually used, every image ready to save, and a contrast read on the text. Then export the palette in the format your codebase already speaks.

  • Palette extraction. Up to 120 deduplicated colors, each tallied by text / background / border usage.
  • Image grid + download. Every <img> and CSS background image with thumbnails; grab one, or download all as a ZIP (Pro).
  • Export anywhere (Pro). CSS custom properties, SCSS variables, a JSON object, or a Tailwind colors config.
  • Contrast at a glance. Estimated share of text passing AA / AAA, plus a list of the pairs that fail.
A page's colors and images, in one pass.

Inspector Free · no account

Hover, click, read the CSS.

A pixel-accurate overlay follows your cursor. Click any element to load its full computed CSS into the sidebar — grouped, readable, and copyable in one click.

  • Smart hover targeting. Empty containers resolve down to the nearest visible child, so you always land on what you meant.
  • Grouped properties. Typography, Colors, Spacing, Effects and Layout — with one-click copy for a value, a group, or everything.
  • Contrast built in. Every color pair shows its ratio with an AA / AAA pass-fail badge, right where you’re already looking.
  • Your units. HEX / RGB / HSL and px / rem / pt, applied everywhere from Settings.
Hover, click, read the CSS.

Typography Free account · Pro pairing

Every font on the page, sorted.

See each font family, how often it's used, its weights and sizes, and the roles it plays — then get pairing suggestions without sending a single byte about the page anywhere.

  • Usage-ranked font list. Families sorted by element count, with distinct weights and sizes per family.
  • Role breakdown. Headings / Body / UI / Other chips, with a sort-by-role toggle.
  • Privacy-first pairing (Pro). Uses Google Fonts’ public catalog after you grant access. Detected fonts never leave your machine.
Every font on the page, sorted.

Built for speed

Keyboard-first, always.

Q cycle tabs
W inspector on/off
E hover popup
N theme

Stop copying hex codes by hand.

Free forever for everyday use. Upgrade any time — one click, handled by Paddle.

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