Meet Color Kit
An Extension Built to Customize
Google Calendars UI
Born from my own need, ColorKit is a browser extension
that customizes Google Calendar. Working on Browsers
to make visual changes to the calendars UI.
All changes happen in the UI, No connection to your
calendar or private data is needed! Just download and
start customizing your calendar experience
Task Colors
Time Blocks
Day Colors
Visual Only - No fake events
Works across Day / Week / Month
Privacy First - No Calendar connection!
See Our Features ⩔
This Is My First Release of ColorKit. It currently has 3 main features ready to use, I am actively improving them and adding more that my users want.
Choose any color
Default task buttons are easy to miss. ColorKit lets you set task colors on any calendar. So tasks pop when it matters.
Give Google Tasks Any Color
Custom Tags
Categories and label assignment tools to allow you to make your own tagging systems
Reusable Templates
Save templates, give tasks descriptions, the same attendees, colors and tags.
Accurate Task Sizing
Make Tasks change in height on the calendar depending on their duration,
A big Task card for a big Task
We are currently talking to users about what they want for Tasks in Google. Join and be part of the discussion. Here are a few of the features we have coming for Google Tasks, We rely on the community to help us choose features, so we know we are building this for you
Now With Individual Time Blocks
New: After Many requests one-off blocks for specific dates are now available perfect for unique weeks and focus days.
🎄2024 - Office Party
Meet The Team
Hi 👋 I'm Adam Hurley
I built this extension for myself — I’m not a big organization or Google, just a solo-developer trying to make useful apps that help people.
After using it for a year and seeing others on Reddit share the same frustrations, I decided to take a risk and turn it into a real product others can try.
Since this is my first personal project released publicly, I’m invested in feedback and improvements. I welcome any suggestions that help make it better for everyone. Hope it helps you.
Heading
As a long-time Google Calendar user, I wanted to create tools that make it easier to actually work with my calendar — not against it.
While building my main project, Calendar Extension, I found myself using time-blocking more and more. My calendar turned into a mess of fake “placeholder” events just to stay organized. So I built a new tool to fix that — an extension that adds simple, visual blocks instead.
That’s how ColorKit was born — a lighter, more visual toolkit for Google Calendar.
Heading
After releasing the first version, I reached out to early testers and instantly got amazing feedback and feature ideas.
The next big step became clear — tasks. Starting with coloring and day-tinting felt right, but users also wanted smarter ways to plan and label their weeks.
Tasks grew into something bigger: templates, tags, and tools to turn Google Calendar into a real workflow hub.
Heading
With the three main features now live, I’m releasing ColorKit for others to test, explore, and help shape what comes next.
Have ideas to improve Google Calendar? Share them in the feedback board, upvote others, and together we’ll build the ultimate toolkit for Google Calendar.
Get Color Kit
Who's this Extension For?
I'm still improving ColorKit. This first-launch build is for people who want to customize Google Calendar to fit how they work. Expect a few quirks—we ship often and fix fast. Try everything free for 7 days, and use the feedback portal to request changes or report any bugs or problems to be fixed quickly.
Early adopters who don't mind occasional bugs or rough edges
Small teams who prefer simple, privacy-friendly tools
Ideal for power users who like giving feedback
PRICING
Pricing plans
All proceeds go to supporting the project