Free Chrome extension

Custom backgrounds for Google Calendarthat make every day look better.

Put your own photos, a different image for every month, or a soft color gradient behind Google Calendar™. Your events stay sharp and readable — in light and dark mode.

No account needed for the free plan · Works in desktop Chrome

  • Photos never leave your browser
  • 7-day free Pro trial
  • 14-day money-back guarantee
Background
Theme

Try it — this preview works just like the extension.

Quick facts

What it is
Chrome extension for Google Calendar
Price
Free · Pro from $1.99/mo
Privacy
Images stay on your device
Languages
55 languages
Features

Everything Google Calendar doesn’t let you change

Google Calendar gives you colors and a dark mode. Custom Calendar Background gives you the view — without touching your events or your data.

Your own photos

Drop in any picture from your computer — family, travel, a favorite painting. It’s resized automatically, so Calendar stays fast.

PRO

Monthly images

Pick a photo for each month and let your calendar change with the seasons, all year long.

PRO

A new view every day

Add up to 30 images and wake up to a different background each morning.

Light & dark, automatically

Matches Google Calendar’s theme on its own, so text is always crisp — day or night.

Readability you control

A readability layer and blur slider keep busy photos calm behind your events.

Change it in one click

A small button in Calendar’s top bar opens a quick panel. Swap images without leaving your calendar.

Pro · Monthly images

A calendar that changes with the seasons

Choose twelve photos once, and every month opens with a fresh look — snowy peaks in January, the beach in July, warm colors in autumn.

  • Switches automatically on the first day of each month.
  • Or add up to 30 images and get a new background every day.
  • Uses your own photos — no stock packs to buy.
Built into Calendar

Change your background without leaving your calendar

Click the small icon in Google Calendar’s top bar and a quick panel opens right there. Every change shows up behind your calendar instantly.

  • Switch between a photo, monthly images, daily rotation or a color.
  • Turn the background on or off in one click.
  • Available in 55 languages — it follows your browser’s language, or pick your own.
How it works

Set up in under a minute

  1. Add it to Chrome

    Install Custom Calendar Background from the Chrome Web Store. It’s free, and it only asks to store your settings.

  2. Pick your background

    Choose a photo from your computer, a set of monthly images, or a color gradient. Adjust readability and blur to taste.

  3. Open Google Calendar

    Your new background is already there — and it updates instantly whenever you change it.

Privacy by design

Your photos never leave your browser

We built Custom Calendar Background the way we’d want an extension on our own calendar to work: it can’t read your events, it doesn’t track you, and your images are stored only on your device.

Read the privacy policy →

What the extension can access

  • Storage — your settings and images, kept in your own Chrome profile.
  • calendar.google.com only — to draw the background behind the page.
  • Your email, only if you choose Pro — to link your plan to your account.
  • No access to your events, contacts or other websites.
  • No ads, no analytics trackers, no selling data.
Pricing

Free forever. Pro when you want more.

Start free. Try Pro free for 7 days — no card needed for the trial. Upgrade only if you love it.

Free

Everything you need for a beautiful calendar.

$0forever

No account needed

  • Your own background photo
  • Colors & gradients
  • Automatic light & dark mode
  • Readability & blur controls
  • Quick panel inside Calendar
Add to Chrome

Lifetime

Pay once, keep Pro forever.

$19.99once

No subscription, no renewals

  • Everything in Pro
  • One payment, lifetime access
  • All future Pro features included
Get lifetime access
14-day money-back guarantee Secure checkout by Lemon Squeezy Cards, PayPal, Apple Pay & Google Pay Taxes handled — no surprise fees

Tip: pay with the same Gmail you’ll use to sign in to the extension — Pro unlocks automatically.

Free vs. Pro at a glance

FeatureFreePro
Your own background photo✓✓
Colors & gradients✓✓
Automatic light & dark mode✓✓
Readability layer & blur✓✓
Quick panel inside Google Calendar✓✓
55 languages✓✓
A different image every month—✓
A new background every day (up to 30 images)—✓
Use Pro on all your computers—✓
FAQ

Questions, answered

Can I change the background of Google Calendar?

Not with Google Calendar’s own settings — it only offers light, dark and event colors. Custom Calendar Background is a Chrome extension that adds what’s missing: a photo, a set of monthly images or a color gradient behind the calendar, while keeping all your events readable.

Is Custom Calendar Background free?

Yes. The free plan includes your own background image or a color/gradient, automatic light & dark matching, and the readability and blur controls — forever, with no account. Pro adds monthly images and a new background every day, starting at $1.99/month, $9.99/year or $19.99 once. Every Google account can try Pro free for 7 days.

Are my photos uploaded anywhere?

No. Images you add are resized and stored only inside your own browser (Chrome’s extension storage). They are never uploaded to our servers or anyone else’s.

Will other people see my background?

No. The background only changes how Google Calendar looks in your own browser. Your calendar, events and anyone you share them with are not affected.

Does it work with Google Calendar’s dark mode?

Yes. The extension detects whether Google Calendar is in light or dark mode and switches its readability layer automatically. You can also force light or dark if you prefer.

What permissions does it need?

At install it only asks for storage (to remember your settings and images) and runs only on calendar.google.com. If you choose to unlock Pro, you sign in with Google so we can link your plan to your email address — nothing else is requested.

Does it work on my phone or the Google Calendar app?

It works in desktop Chrome (Windows, macOS, Linux and ChromeOS). Browser extensions can’t change the Google Calendar mobile apps.

Can I use Pro on more than one computer?

Yes. Pro is linked to the Gmail address you sign in with, so it works on every computer where you install the extension and sign in with the same account.

How do I cancel or get a refund?

You can cancel a subscription at any time from “Manage subscription” in the extension settings; you keep Pro until the end of the period you paid for. If you’re not happy, email us within 14 days of your purchase for a full refund.

Is this an official Google product?

No. Custom Calendar Background is an independent extension. Google Calendar is a trademark of Google LLC.

Still have a question? Visit support or email support@customcalendarbackground.com.

Give your calendar a view worth looking at

It takes a minute to set up, it’s free to start, and you can make it yours today.

Add to Chrome — it’s free