Calendars have become an important tool in our daily lives. They help us manage activities efficiently, either prioritizing tasks or maximizing productivity. In the last two decades, people have turned to web-based and mobile app calendars making them increasingly popular. They can be accessed across a large number of smart devices like PCs, smartphones, tablets, TVs and many more.
The implementation of these calendars can be done a number of ways depending on programming languages used. A well-designed calendar for either a website or web app with a user-friendly interface is a must, especially when the user has to select dates accurately for different tasks. If the calendar user interface (UI) is not intuitive or doesn’t have a great user experience (UX) it can harm your online business.
Front-end development plays an important part when it comes to integrating calendars into various websites and apps, such as admin panels, booking platforms, travel sites or project management tools. Developers can choose different frameworks like React, Vue, JavaScript, Typescript, jQuery, Angular for functionality while HTML for structure. Styling the calendar to match the design specifications can be done using CSS frameworks like Tailwind CSS, Bootstrap, Bulma, SCSS, or LESS.
For those new to front-end development, creating a calendar from scratch can pose a challenge. There is a large number of templates, libraries and even pre-built components available online which can simplify the process significantly. Within the CodePen playground you can find calendar examples created by front-end developers. Each example can be seen as an excellent resource when trying to integrate different elements into your projects seamlessly.
Neobrutalism Calendar
This 2026 calendar template is a great addition to any neobrutalism-styled websites creating a striking visual style for the user experience.
See the Pen Glassmorphism Calendar
A “frosted glass” styled calendar that can be used in any glassmorphism websites.
See the Pen Interactive Calendar Widget
A modern, interactive calendar widget with drag & drop events, multiple views, and local storage. Perfect for websites and web applications.
See the Pen Financial Calendar Widget
A financial calendar concept featuring tooltips for each day of the current month and circles to represent daily income data. Also operable with arrow keys!
See the Pen Tailwind CSS Calendar Template
A sleek and modern look for a calendar using the Taillwind CSS framework.
See the Pen Bulma Calendar
If you’re in need of an all in one calendar than this template styled with Bulma CSS might be what you are looking for.
See the Pen Bootstrap Calendar
A customizable monthly calendar template styled with Bootstrap framework great for any type of websites or app.
See the Pen Windows Fluent Design Calendar
See the Pen AngularJS Flex Calendar
See the Pen React Simple Calendar
See the Pen Angular JSON Calendar Custom Day Template
See the Pen Angular JSON Calendar Custom Day Template by benjamincharity (@benjamincharity) on CodePen.
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