Instantly inspect website design

4.63 stars

CSS Peeper

Instantly inspect any website

Analyze your favorite color palettes

Access typography information

Browse and download assets

CSS Peeper

Use this Chrome extension to instantly analyze web design styles without digging into source code

4.63 stars

4.63 stars

One time payment of

-70%$29

$96

Choose a plan

$29$96

Lifetime access
Refundable up to 60 days
Covered by our We Got Your Back guarantee

Thoroughly vetted by AppSumo for quality, performance, and support

Stop wasting hours digging through code to identify colors, fonts, and assets. CSS Peeper lets you instantly inspect any element, extract design properties, and streamline your workflow.

TL;DR

Quickly inspect any element, extract CSS properties, and access detailed typography info without coding
Explore all website colors organized by purpose, like background, text, borders, and more

At-a-glance

Best for

Product designers, Web design agencies, Web designers

CSS Peeper

Inspect CSS and assets in seconds

Overview
Pricing
Reviews

Inspect, explore, and analyze design properties without digging into code

Instantly inspect any website

Simply point and click on any element to see specific design information
Reveal more in-depth information like padding, distance between elements, content size, borders, and more

Instantly inspect any website

Analyze your favorite color palettes

See specific HSL, Hex, and RGBA values for any color
Find the colors used in specific places like backgrounds, text, and borders
Copy a specific color palette and export for future use and faster design workflows

Analyze your favorite color palettes

Access typography information

Access detailed typography info like font family, size, weight, and style
View text hierarchy and font pairings to get inspired for your own projects

Access typography information

Browse and download assets

Download images, SVGs, and icons for instant access to any graphic
Save time and speed up your prototype process with powerful CSS extraction support

Browse and download assets

One plan, all inclusive

Feel secure in your purchase with AppSumo's 60 day money-back guarantee.

License Tier 1

$29

Lifetime access

Sidebar mode

Export color palette

Display semantic color groups

Preview color instances

Browse text styles in use

Preview typography hierarchy

Locate text style instances

Layout density switcher

Knowledge base

Email support

Personalize type and colors units

Dark mode

Access to beta features

Inspect mode switcher

Smart inspections

Advanced contrast checker

Contrast issue scanner

Browse images, icons and svgs

Refundable up to 60 days

Covered by our

We Got Your Back guarantee

Deal terms & conditions

Founded December 1, 2016

🇵🇱Wielkopolska, Poland

1-10

Startup

Bootstrapped

Instant web style insights

Dawid Młynarz, co-founder of CSS Peeper, spent over a decade as a designer and grew frustrated by the slow, repetitive process of digging through dev tools to extract styles, colors, and assets. He created CSS Peeper in 2016 to provide a cleaner, more intuitive interface for designers and developers.

Rather than overwhelming users with developer-focused tools, CSS Peeper concentrates on designers’ workflows by offering instant access to style data, color palettes, typography details, and asset exports—all through a simple point-and-click interface.

Since its launch, CSS Peeper has grown to a community of over 500,000 users worldwide, saving countless hours on tasks like grabbing colors, exporting assets, and inspecting spacing and typography. Advanced features further streamline productivity, making CSS Peeper a one-stop toolkit for web design insights.

Co-founder

Questions & reviews

Have a question?

Here you'll find a curated collection of frequent questions and answers, designed to provide you with quick, clear information about the product.

For all other questions refer to the questions tab

Helpful links

What is CSS Peeper?

How do I install CSS Peeper?

Is CSS Peeper compatible with browsers other than Chrome?

How can I contact CSS Peeper support?

Does CSS Peeper collect or store inspected website content or user browsing history?

Can I use CSS Peeper to export assets from a website?

How does CSS Peeper help with color contrast and accessibility?

The review summary: 'Customers are all about CSS Peeper, praising its instant analysis of web design styles, clean UI, and ease of use. There are a few hiccups like limited CSS insights and lack of a Firefox addon, just small bumps on the road. Weighing the raves against the occasional grumbles, CSS Peeper is hitting the mark and is a solid buy for those in need of a tool to streamline web design. With an overall rating of 4.6 and a 60-day money-back guarantee, it's worth giving it a try.' Corrected review: 'Customers are all about CSS Peeper, praising its instant analysis of web design styles, clean UI, and ease of use. There are a few hiccups like limited CSS insights and lack of a Firefox addon, just small bumps on the road. Weighing the raves against the occasional grumbles, CSS Peeper is hitting the mark and is a solid buy for those in need of a tool to streamline web design. With an overall rating of 4.6 and a 60-day money-back guarantee, it's worth giving it a try.'

AI-powered summary of customer reviews

Ratings

4.6

4.63 stars

4.63 stars

19

Taco ratings

15

3

0

0

1

Co-founder

Founded December 1, 2016

🇵🇱Wielkopolska, Poland

1-10

Startup

Bootstrapped

Showing 1-2 of 2 posts

Updated Sep 2, 2025

First post from Founder

I’m Dawid Młynarz, co-founder of CSS Peeper. I’ve been a designer for 13+ years, and like many of you, I constantly found myself digging through dev tools just to grab styles, colors, assets, or spacing. It was slow, frustrating, and honestly pulled me away from the creative part of design. On top of that, I had to install multiple different extensions just to cover the basics.

That pain led me to create CSS Peeper back in 2016, a tool built for designers, but also for developers. Instead of inspecting messy code, you can instantly see and extract the styles you need, in a clean and intuitive way.

Since then, CSS Peeper has grown to a community of over 500,000 users worldwide. Designers tell us they love it because it saves them hours of work, whether they’re grabbing colors from a website, exporting assets, or quickly checking spacing and typography.

What makes CSS Peeper different? It’s focused entirely on designers’ workflows. Instead of overwhelming you with developer-focused tools, it gives you exactly what you need in seconds, without the clutter.

Recently, we’ve taken things a step further with some exciting advanced features to boost productivity even more. Think of it as your one-stop toolkit for peeking under the hood of any site. Fast, simple, and built with your creative process in mind.

I started CSS Peeper to solve my own problem, but seeing how much time it’s saved other designers has been the most rewarding part of this journey. I’m here because I want to keep making your work easier, so you can focus on what really matters: creating great design.

Dawid_CSSPeeper

Sep 2, 2025

Company and product FAQs

What 3rd party tools is your product critically dependent on?

Stripe

Where is your customer data stored?

Firebase

How many customers do you have today?

500,000 free users on Chrome, over 25,000 user accounts, and 200 active subscribers

What’s the origin of the idea for your product?

Back in 2016, I was struggling with something that many of you might relate to... digging through dev tools just to grab relevant web styles. It was a painful, repetitive process, and on top of that I needed multiple different extensions just to get simple things done. So I decided to fix it. That’s how CSS Peeper was born, a tool made by a designer, for designers.

What problem is your product solving and how?

Designers tell us they love it because it saves them hours of work. Whether they’re grabbing colors from a website, exporting assets, or quickly checking spacing and typography. What makes CSS Peeper different? It’s focused entirely on designers’ workflows. Instead of overwhelming you with developer-focused tools, it gives you exactly what you need in seconds, without the clutter.

What’s the #1 thing you’re looking to gain from the AppSumo campaign?

Feedback, virality, income

What are your plans with the customers, cash, and learnings from the AppSumo campaign?

Continue improving the experience, and update the roadmap with features that are relevant to the community.

Dawid_CSSPeeper