1
Smart Upscale
tanalin.com/en/projects/smart-upscaleAlso covers browser extension · same kind of website
SmartUpscale applies integer scaling to webpage images in Firefox and Chrome to reduce blur on high-density displays.
Alternatives
The Best ColorZilla Alternatives in 2026
24 alternatives1 free · 12 open source
Looking for something like ColorZilla? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 12 are open source.
About ColorZillacolorzilla.com
VisitColorZilla provides eyedropper, color picker, color analyzer, and CSS gradient tools for Firefox and Chrome.
Top picks at a glance
First suggestionSmart UpscaleSmartUpscale applies integer scaling to webpage images in…Free or freemium optionMullvad Browser ExtensionUse the Mullvad Browser Extension beta for proxy support…Open source optionOpen-Multiple-URLsOpen Multiple URLs is a browser extension for opening lists…Another optionDark ReaderDark Reader adds adjustable dark mode to websites across…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Smart Upscale | — | Not stated | Browser extension, Web, Windows |
| 2 | Dark Reader | — | Not stated | Browser extension, iOS, Web |
| 3 | Stylebot | — | Not stated | Browser extension, Web |
| 4 | Screen Color Temperature | — | Not stated | Web |
| 5 | Anori | — | Not stated | Browser extension, Web |
| 6 | Open-Multiple-URLs | — | Yes | Browser extension |
| 7 | Read Aloud | — | Not stated | Browser extension |
| 8 | Copycat | — | Yes | — |
| 9 | GlobalSpeed | — | Not stated | Browser extension |
| 10 | Favicon Detector | — | Yes | — |
All ColorZilla alternatives
2
Dark Reader
darkreader.orgAlso covers browser extension · same kind of website
Dark Reader adds adjustable dark mode to websites across Chrome, Firefox, Safari, and Edge.
3
Stylebot
stylebot.devAlso covers browser extension · same kind of website
Stylebot lets users change webpage colors, fonts, and other styles with a basic editor or custom CSS.
4
Screen Color Temperature
mybrowseraddon.com/screen-color-temperature.htmlAlso covers browser extension · same kind of website
Color Temperature adjusts screen color to match the surrounding environment, according to the extension listing.
5
Anori
anori.appAlso covers browser extension · same kind of website
Build a custom new-tab page with Anori, a browser extension offering folders, color schemes, and widgets such as tasks, notes, and weather.
6
Also covers browser extension · open source
Open Multiple URLs is a browser extension for opening lists of URLs and extracting URLs from text, with Chrome and Firefox support.
7
Read Aloud
readaloud.appAlso covers browser extension
Read Aloud reads webpage content aloud and lists browser extensions for Chrome, Firefox, and Edge.
8
Also covers browser extension · open source
Copycat copies web content and can capture tab titles or links in formats such as plain text; the extension supports Chrome, Edge, and Firefox.
9
GlobalSpeed
github.com/polywock/globalSpeedAlso covers browser extension
Global Speed sets default playback speed for video and audio in a browser extension available for Edge, Firefox, and Chrome.
10
Also covers browser extension · open source
Favicon Detector identifies website icons using the parse-favicon library, with support listed for Chrome, Edge, and Firefox.
11
Also covers browser extension · open source
Manage browser tabs with Prune, an extension listed for Chrome, Firefox, and Safari.
12
Also covers browser extension · open source
View Image restores Google Images’ View Image button and is available as a Chrome extension, Firefox add-on or userscript.
13
Also covers browser extension · open source
Restyle websites with CSS themes using Stylus, a browser extension listing compatibility with Chrome, Firefox, and Chromium-based browsers.
14
New Tab Override
soeren-hentzschel.at/firefox-webextensions/new…Also covers browser extension · same kind of website
New Tab Override lets Firefox users choose which webpage opens when they open a new tab.
15
Also covers browser extension · open source
hexagonTab provides a customizable start page with hexagon-shaped bookmarks and adjustable colors, layout, and background.
16
Also covers browser extension · open source
Tint webpage colors by time of day with Circadian, a browser extension offering daytime, sunset, and bedtime settings.
17
Also covers browser extension
Block unwanted pop-up windows in Firefox with Popupblocker, which can show a small notification when it stops one.
18
Also covers browser extension · open source
The Quick Copy browser extension helps users copy text from webpages, with the project page linking to its Chrome listing.
19
Also covers browser extension · free
Use the Mullvad Browser Extension beta for proxy support and IP or DNS leak checks in Firefox.
20
Also covers browser extension · open source
SnoozeTabs is a Firefox add-on for postponing tabs, letting them be set aside for a while before returning to them.
21
Also covers browser extension · open source
Nightly provides a themed, configurable browser start page, with setup instructions for Chromium-based and Firefox-based browsers.
22
Also covers browser extension · open source
Simple Tab Groups lets Firefox users create, modify, and quickly switch between tab groups.
23
TreeStyleTabs
github.com/piroor/treestyletabAlso covers browser extension
Tree Style Tab is a Firefox add-on that displays tabs in a tree, as indicated by the project description.
24
Custom Dark Mode
mybrowseraddon.com/custom-dark-mode.htmlAlso covers browser extension · same kind of website
Custom Dark Mode applies customized dark styles to webpages through a browser add-on.
No alternatives match this filter.
Alternatives to similar tools
Popupblocker by Joofthan24 alternativesCustom Dark Mode24 alternativesCopycat24 alternativeshexagonTab24 alternativesnightly24 alternativesSmart Upscale24 alternatives
TopicBrowser Extensions · 193 sites Best-of listBest Free Bookmark Managers for Links You Want to Find Again ListingColorZilla details
What is the best alternative to ColorZilla?
Based on features, tags and platforms, the closest alternatives to ColorZilla are Smart Upscale, Dark Reader, and Stylebot.
Is there a free alternative to ColorZilla?
Yes. Mullvad Browser Extension is free or offer a free plan.
Are there open-source alternatives to ColorZilla?
Yes: Open-Multiple-URLs, Copycat, Favicon Detector, and Prune.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative