CLNDR
The premium Open Source alternative to FullCalendar
🎯 Best for:Developers maintaining jQuery-based projects requiring custom calendar layouts.
What is CLNDR?
A template-based alternative to FullCalendar for legacy web environments. Uses Underscore.js templates to allow developers complete control over the generated HTML structure and calendar logic.
Tech Stack
JavaScriptFrontend & Headless CMS
Why CLNDR?
- • Complete template flexibility
- • Lightweight core logic
- • Event-agnostic data handling
Limitations
- • Requires jQuery dependency
- • No built-in drag-and-drop
- • Older architectural pattern
2/26/2026
Last Update
436
Forks
16
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to CLNDR instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on FullCalendar)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%