ColorZilla Review 2026: Extension, Download, Website, Free Plan & FAQs

If you spend any part of your day designing websites, building brand pages, or simply trying to match a colour you spotted on someone else's site, there is a good chance you already have ColorZilla sitting quietly in your browser toolbar. It has been around for close to two decades, and in 2026 it is still one of the extensions designers reach for first whenever they need a quick colour reading, a gradient, or a palette lifted straight from a live webpage. We spent several weeks going through the Chrome extension, the Firefox add on, the official website, and dozens of real user reviews to put together this guide. Below, we break down what ColorZilla actually does, whether it is still free, how the download process works, and what real users are saying about it this year.

Table of Contents

• ColorZilla Extension Overview
• ColorZilla Download Guide
• ColorZilla Official Website
• Is ColorZilla Free in 2026
• User Experience and What People Are Saying
• Pros and Cons
• Our Rating
• Frequently Asked Questions

ColorZilla Profile at a Glance

ColorZilla Extension: What It Actually Does

At its core, ColorZilla is a colour utility built by Iosart Labs, the same team behind the long running Gradient Editor at colorzilla.com. The extension bundles together a handful of tools that designers used to need separate apps for, and it puts all of them a single click away from the browser toolbar.

Here is what you get once it is installed:

• An advanced eyedropper that can sample a pixel, or an average of a 3x3, 5x5, 11x11, or 25x25 block, so you are not stuck guessing between two very close shades.
• A Photoshop style colour picker with sliders for HEX, RGB, HSL and other formats.
• A CSS gradient generator that lets you build multi stop gradients and copy the code straight into a stylesheet.
• A webpage colour analyzer that scans a page and pulls out its full colour palette in seconds.
• A palette viewer with seven built in palettes plus the option to save your own.
• A colour history panel that remembers the last colours you picked, which is genuinely handy when you are jumping between tabs.
• A DOM spy feature that shows the tag name, class, id and size of any element you hover over.

What stands out in 2026 is how little the core toolset has changed. That is both a strength and a weak point. The feature set is proven and reliable, but the interface has not had a real visual refresh in years, and a few long time users have started to say so in their reviews, which we cover further down.

ColorZilla Download: Where and How to Get It

ColorZilla is distributed through the official browser stores rather than as a standalone installer, and that is a good thing from a safety standpoint. Downloading through the Chrome Web Store or the Firefox Add ons site means the file has already passed each browser's review process.

The download steps are short:

• 1. Open the Chrome Web Store or addons.mozilla.org and search for ColorZilla.
• 2. Confirm the publisher is Iosart Labs LLC before installing, since several lookalike colour picker extensions exist.
• 3. Click Add to Chrome or Add to Firefox.
• 4. Pin the extension icon to your toolbar so the eyedropper is one click away.

A small number of older third party download portals still list a standalone Windows version of ColorZilla, left over from the days before browser extension stores existed. We would steer clear of those. There is no real reason to download colour software from a random file hosting site in 2026 when the official extension install takes under a minute and comes with automatic updates.

ColorZilla Website: What You Will Find at colorzilla.com

The official site, colorzilla.com, is more of a hub than a storefront. From the homepage you can jump to the Chrome and Firefox extension pages, or to the standalone Ultimate CSS Gradient Editor, which is a free browser based tool for building Photoshop style gradients without installing anything at all.

The design of the website has the same dated feel as the extension itself. It gets the job done and loads fast, but it will not win any design awards. We did not find any sign of a paid plan, account system, or subscription anywhere on the site, which lines up with the extension's description as a completely free tool. The site is also translated into more than a dozen languages, a small detail that shows the tool still has a genuinely global user base.

Is ColorZilla Free in 2026

Yes. ColorZilla remains entirely free, with no premium tier, no trial period, and no feature locked behind a paywall. The developer's listed business model appears to rest on donations and the broader reputation of Iosart Labs rather than on selling upgrades, which is fairly rare for a tool this widely used.

The extension's own permissions disclosure states that it does not collect or sell user data, and it does not request any unusual browser permissions beyond what it needs to read page colours. For a free tool that has survived this long without turning into an ad supported product or adding a paid tier, that track record counts for something.

User Experience: What People Are Actually Saying in 2026

We read through recent Chrome Web Store reviews from this year to get a sense of how real users feel about ColorZilla today, and the picture is mostly positive with a few recurring complaints.

What users like

• The sampling size options get singled out often. Several reviewers mention it is the only color picker they tried that lets them average a block of pixels instead of grabbing one that might not represent the shade they actually want.
• Accuracy and reliability come up again and again. Long time users describe it as simply working, with no crashes or missed readings.
• The ability to pick colors from outside the active browser window, across the desktop, is a feature a few reviewers say they cannot find anywhere else.

What users do not like

• The interface feels old. Multiple 2026 reviews describe it as clunky and say a visual update would push their rating higher.
• A handful of users on browsers like Vivaldi report that the extension slows down browser startup, though this does not appear to affect most Chrome users.
• A small number of reviewers mention antivirus software flagging the extension, which appears to be a false positive tied to its broad page access permission rather than any real security issue, but it has still cost the tool some trust among cautious users.

Taken together, the sentiment is that ColorZilla still does its job better than most alternatives, but it is coasting on a feature set built years ago rather than actively evolving.

Pros and Cons

Pros

• Completely free with no hidden costs or upsells
• Multiple sampling sizes for more accurate color readings
• Works across Chrome, Firefox, Edge and other Chromium browsers
• Strong track record on privacy, with no data collection disclosed
• Large, active install base of over 4 million users
• Useful extras like DOM inspection and a built in contrast checker

Cons

• Interface design feels noticeably outdated next to newer competitors
• Occasional performance complaints on non Chrome Chromium browsers
• No major feature updates in recent years
• Some antivirus tools flag it over broad page permissions, which can worry new users

Nubia Magazine verdict 

ColorZilla earns a solid 3.8 out of 5 from the Nubia Magazine team. It loses points for its aging interface and the occasional performance hiccup on certain browsers, but it holds that score up with genuine reliability, a completely free pricing model, and a feature set that still beats most of the newer color picker extensions on the market. For most designers and developers, it remains a safe and dependable default choice.

Frequently Asked Questions About ColorZilla

1. Is ColorZilla still being updated in 2026?

The core extension has not had a major feature overhaul in recent years, though the developer continues to push smaller maintenance updates to keep it compatible with current versions of Chrome and Firefox.

2. Is ColorZilla safe to install?

Based on its permissions disclosure and long track record, ColorZilla is considered safe. The publisher states it does not collect or sell user data. A few antivirus tools have flagged it due to its broad page access, which the extension needs to read colors from any site, but this is generally treated as a false positive rather than a real threat.

3. Does ColorZilla cost anything?

No. ColorZilla is completely free to download and use, with no premium tier, subscription, or locked features.

4. Which browsers support ColorZilla?

ColorZilla is available for Google Chrome, Microsoft Edge, and other Chromium based browsers through the Chrome Web Store, as well as for Mozilla Firefox through the official Firefox Add ons site.

5. Can ColorZilla pick colors from outside the browser?

Yes, this is one of its most praised features. Unlike many color picker extensions that only work inside the active tab, ColorZilla can sample colors from anywhere on the screen, including other open applications.

6. Why does ColorZilla feel slow on some browsers?

A small number of users, particularly on Vivaldi, have reported slower browser startup times with ColorZilla enabled. Most Chrome and Firefox users do not report this issue, but if you notice a slowdown, try disabling and re enabling the extension or checking for updates.

7. Is there a ColorZilla app for Windows or Mac outside the browser?

No official standalone desktop app exists anymore. Some third party download sites still list an old Windows version from ColorZilla's early Firefox add on days, but the actively maintained version today is the browser extension.

8. What is the difference between ColorZilla and the Ultimate CSS Gradient Editor?

ColorZilla is the browser extension used for everyday color picking and quick gradients. The Ultimate CSS Gradient Editor is a separate, more advanced web based tool from the same developer for building complex, multi stop CSS gradients.

9. How many people use ColorZilla?

The Chrome Web Store listing shows more than 4 million users, making it one of the most widely installed color tools in its category.

10. Does ColorZilla work on Figma or design software, or only in the browser?

ColorZilla is strictly a browser based tool and does not integrate directly with design software like Figma or Photoshop. It is best used for sampling colors from live webpages, which you can then paste into whichever design tool you prefer.