Bootstrap 4 Form: Tutorial and Examples

Bootstrap 4 form is the latest version of the front-end development framework of Bootstrap. Read the article to know some of its best features

Varun Saharawat30 Oct, 2025

Bootstrap 4 form: The latest version of bootstrap is bootstrap 4. It can be used to make visually compelling and responsive websites. It saves a lot of time and makes front-end development effective and quick. Bootstrap 4 form is used to collect input from the users with the help of a customizable interface. It consists of different layouts with different functionalities for contacts, registrations, subscriptions, logins, etc.

What is Bootstrap 4?

Bootstrap 4 is an open-source front-end framework that helps to build responsive websites. It provides many pre-built components which saves time and makes development effective. It consists of pre-built front-end components based on technologies such as HTML, CSS, and Javascript. A large degree of customization options are available to adjust the layout and set it as per the client’s need.

Also Read: Bodyparser: Middleware in Node.js

What is Bootstrap 4 Form?

Bootstrap 4 form consists of various layouts and customizable features to help developers build attractive web pages effectively. It provides various predefined classes that can deliver customization options for various front-end elements such as text styles, layout options, controls, validations, plugins, etc. It can be used after importing the necessary CSS and Javascript files in the project.

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Bootstrap 4 Form: Layouts

There are a large number of layouts offered by the Bootstrap 4 version to enhance the website's look and responsiveness. Some major layouts are given below.

1. Fluid Container Layout

These layouts make the container take the entire width of the window, which makes it a full-size design. The class used is the “container-fluid” class.

Bootstrap 4 Form

2. Fixed Container Fluid

This layout consists of a fixed width and is centred around the page, which makes a consistent margin on both sides of the window. You can use this layout using the “container” class.

Bootstrap 4 Form

3. Responsive Navbar Layout

A responsive navbar adjusts its size according to the width of the device. It can include various buttons, links, and other HTML elements.

Bootstrap 4 Form

4. Grid/Row Layout

The grid layout helps divide the screen into rows and columns. You can easily specify the number of rows and columns. Also, you can specify its width and other important attributes.

Bootstrap 4 Form

<div class="row"> <div class="col-md-6">Column 1</div> <div class="col-md-6">Column 2</div> </div>

5. Card Layout

It displays the elements in a card-like architecture consisting of text, buttons, images and other media. It can be arranged in grids or vertically. It can be imported by using the “card” class.

Bootstrap 4 Form

6. Carousel Layout

It is one of the most used layouts on different web pages. We can represent sliders and slideshows. Users can easily slide through multiple items on the web page.

Bootstrap 4 Form

Bootstrap 4 Form: Classes

There are different classes that can be used to implement various functionalities on our web pages. These classes can be used in frontend elements to add predefined functionalities to the elements.

Bootstrap 4 Form: Classes
Functions	Bootstrap 4 Classes
Containers	Container, container-fluid
Borders	border, border-{top, bottom, left, right}, rounded
Grid System	row, col
Background colors	primary, secondary, success, info, warning, etc.
Visibility	Invisible, hidden, visible
Display	block, inline, inline-block, flex, none
Text formatting	Lowercase, uppercase, capitalize
Text alingment	Left, center, right, justify
Buttons	btn, btn-primary, btn-secondary, btn-success, btn-info, btn-warning, etc.
Buttons size	Btn-sm, btn-lg
Form	Form-control, form-group, form-check, custom-checkbox
Image Shapes	Img-fluid, rounded, rounded-circle, rounded-pill
Spacing	M-{1-5}, mt-{1-5), mb-{1-5}, ml-{1-5}, p-{1-5}
Validation Classes	.was-validated, .needs-validation, .valid-feedback, .invalid-feedback, etc

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Bootstrap 4 Form FAQs

What is Bootstrap 4?

Bootstrap 4 is an open-source front-end framework that helps to build responsive websites. It provides many pre-built components that save time and make development effective.

What is a form group in Bootstrap 4?

The form group class is used to enhance the structure of the web page form. With the help of form, group labels, text, controls, and many others can be grouped together and called at once.

What is Bootstrap Form?

Bootstrap Form is used to structure web forms with different elements with many functionalities. It uses predefined classes to implement a function which saves a lot of time.

What are the different input types in Bootstrap 4 form?

The different input types in Bootstrap 4 forms are text, datetime, password, number, month, time, week, email, color, etc. We can use one specific type to prompt users to feed the required data inside.