Chrome & Edge extension
CalendarBoost lets you add unlimited custom colors, visual tag badges, and premium themes to Google Calendar — so every event stands out and your week is organized at a glance.
No credit card required · Free plan available · Install in 10 seconds
The problem
When every event looks the same, your schedule becomes a blur instead of a plan.
Google Calendar limits you to 11 preset colors. When you manage multiple calendars and event types, everything blends together.
You can't tag events with visual badges — making it impossible to see categories, priorities, or status at a glance.
The default theme offers no personalization. Dark mode users and power schedulers deserve better.
Get started
No configuration needed — install, open your calendar, and go.
Add CalendarBoost from the Chrome Web Store or Microsoft Edge Add-ons. One click and you're ready.
Navigate to Google Calendar as usual. CalendarBoost activates automatically — no extra tabs or menus.
Your custom color palette, tag badges, and theme options are ready to use. Pick any color, add tags to events, and enjoy a beautifully organized calendar.
Capabilities
CalendarBoost goes far beyond Google Calendar's built-in 12 colors — giving you full creative control over how your schedule looks and feels.
Break free from Google Calendar's limited palette. Add as many custom colors as you need with an intuitive color picker that ensures perfect contrast and readability.
Create colorful tag badges that appear directly on your events. Use simple syntax like 'Meeting, Client: Project Discussion' to assign multiple tags. See event types, priorities, and contexts at a glance.
Choose from professionally designed preset themes for work, personal, family, health, and social categories. Apply complete color schemes instantly and switch between themes to match your mood or context.
Use cases
From freelancers to enterprise teams, CalendarBoost makes your schedule instantly readable.
Color-code client projects, deadlines, and personal time to keep everything visually separated.
Color meeting types (1:1s, standups, reviews) and add priority tags for at-a-glance scheduling.
Organize classes, office hours, study sessions, and assignments with distinct colors and tags.
Why CalendarBoost
Google Calendar's default 12 colors are not enough for complex schedules. CalendarBoost removes every limitation.
| Capability | CalendarBoost | Google Calendar Default | Other Extensions |
|---|---|---|---|
| Unlimited custom colors | ✓ | 11 only | Partial |
| Visual tag badges | ✓ | ✗ | ✗ |
| Premium themes & dark mode | ✓ | Basic only | Partial |
| One-click theme presets | ✓ | ✗ | ✗ |
| Multi-language support | ✓ | ✓ | Partial |
| Chrome & Edge support | ✓ | N/A | Chrome only |
| Free tier available | ✓ | ✓ | Varies |
Security & Privacy
CalendarBoost works entirely in your browser — no data ever leaves your device.
Pricing
Start for free — upgrade only when you need unlimited colors and tags.
$0 / month
$3.99 / month
FAQ
Quick answers for the questions that come up most before installing.
Yes. The free plan includes 3 custom colors, 3 tags, and basic preset themes — no credit card required. Upgrade to Pro for unlimited colors, tags, and all premium themes.
Yes. CalendarBoost is available on both the Chrome Web Store and Microsoft Edge Add-ons. It works identically in both browsers.
No. CalendarBoost is a lightweight extension that processes everything locally in your browser. It adds minimal overhead and does not make network requests for color or tag operations.
Add tags directly in your event title using simple syntax like 'Meeting, Urgent: Project Kickoff'. CalendarBoost parses the comma-separated prefixes and displays them as colored badges on the event.
No. CalendarBoost operates entirely in your browser. It reads the calendar page to apply colors and tags visually but does not send, store, or sync your calendar data to any external server.
Yes. Install CalendarBoost on each browser where you use Google Calendar. If you are signed into Chrome or Edge sync, your extension settings carry over automatically.
Your Google Calendar events are unaffected — CalendarBoost only adds a visual layer on top. If you uninstall, events revert to Google Calendar's default 12 colors and tag badges are no longer displayed.
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Install CalendarBoost and start creating your perfect color palette. Free tier available — no credit card required.
