Modern applications require lots of infrastructure; **[platform as a service (PaaS)](https://www.educative.io/answers/what-are-iaas-paas-and-saas)** is a computing model in which a third-party provides all the infrastructure so that the programmer can focus on building the application. 

According to the #key# official website:  https://www.heroku.com/ #key#, **Heroku** is a platform as well as a service (PaaS) that enables developers to build, run, and operate applications entirely in the cloud.

![](/api/edpresso/shot/5265584293937152/image/5753249242021888)

# Key features

* It has support for modern languages such as Node, Ruby, Java, PHP, Scala, Go, and Python.

* It supports continuous integration of code by allowing applications to be deployed from Git, GitHub, Docker, or with the use of an API.

 * It can easily ​scale apps.

* Dynos are containers for the application that facilitate scaling and load-balancing of applications.

# Some notable users

1. Toyota Europe

2. Macy's

3. Yonomi

4. Dubsmash

# Get Heroku

[Sign-up here​](https://signup.heroku.com/) to get started with Heroku for free.

What is Heroku?

A PaaS enabling cloud-based application development, supporting modern languages, continuous integration, and easy scalability with notable users like Toyota Europe.