1. ColorZilla
Eyedropper, colour picker and gradient generator.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
Best Custom Calendar Background Alternatives in 2026
Custom Calendar Background is a strong option, but it is not the right fit for everyone. Below are 8 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About Custom Calendar Background
Adds background images to Google Calendar Modify the Google Calendar UI to include full-page background images or colors.
Comparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| Custom Calendar Background (original) | 3.7 | 200K+ | Freemium | |
| ColorZilla | 4.6 | 4M+ | Free | Designers and front-end developers matching colours from live sites. |
| WhatFont | 4.0 | 2M+ | Free | Designers auditing typography on competitor and reference sites. |
| Adobe Photoshop | 3.8 | 800K+ | Free | |
| Earth View from Google Earth | 4.2 | 600K+ | Free | |
| Dark Theme - Dark mode for Chrome | 4.3 | 400K+ | Free | |
| Zoom Video - UltraWide Fill | 4.5 | 400K+ | Free | |
| Dark Mode - Night Eye | 4.5 | 300K+ | Freemium | |
| Boxel 3D | 4.6 | 300K+ | Free |
Custom Calendar Background alternatives in detail
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2. WhatFont
Identify the fonts used on any web page.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
3. Adobe Photoshop
Easily remove backgrounds, adjust colors and more. Plus, get 6 months free access to Photoshop web.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
4. Earth View from Google Earth
Experience a beautiful image from Google Earth every time you open a new tab.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
5. Dark Theme - Dark mode for Chrome
Dark mode switch any websites to dark theme. Take care of your eyes day using a classic dark reader or change screen brightness.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
6. Zoom Video - UltraWide Fill
Zoom video, change aspect ratio of any video, removing black bars on Netflix, Amazon Prime, YouTube, HBO. Ultrawide video.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
7. Dark Mode - Night Eye
Dark Mode: Switch to dark reading for night & day browsing. More than dark theme style, it ensures optimal eye protection.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
8. Boxel 3D
Boxel 3D is a speedrunning game packed with challenging levels, custom skins, online multiplayer, and a creative level editor.
Why it replaces Custom Calendar Background: Another Design extension worth comparing against Custom Calendar Background.
Compare Custom Calendar Background head-to-head
Direct comparisons with the extensions people weigh against it.
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Frequently asked questions
What is the best alternative to Custom Calendar Background?
ColorZilla is the closest match. Another Design extension worth comparing against Custom Calendar Background.
Is there a free alternative to Custom Calendar Background?
Yes — ColorZilla, WhatFont, Adobe Photoshop are free.
Why switch away from Custom Calendar Background?
Common reasons are pricing, missing sync or team features, and specific limitations: Some features require a paid plan; Requests access to the sites you visit.