---
title: "What is docker?"  
description: "What is docker?"  
author: "ICSM Computer"  
published: 2024-10-11  
updated: 2025-01-01  
canonical: https://www.mindstick.com/forum/161003/what-is-docker  
category: "programming language"  
tags: ["c#", ".net", "backend code"]  
reading_time: 1 minute  

---

# What is docker?

What is docker?

## Replies

### Reply by Khushi Singh

**Docker** is a tool that provides a means for building and running applications in lightweight and portable environments called containers. These containers can execute in a very successive manner in various settings such as developers’ computers, test servers, or production environments.

## Key Features of Docker:

- Containers: Docker uses containers to package an application with all that is needed for the application to run (code, libraries, tools, etc.).
- Portability: There are no concerns as to where containers have to be run since they are compatible with any system that has a copy of Docker installed, and application migrating becomes much easier.
- Efficiency: Containers are lightweight because they don’t come with their own operating system; they use the existing OS of the host system.
- Isolation: They do not affect one another because each container is in an individual environment when the applications are running.\
- Explore more about [Docker & how they work](https://www.mindstick.com/articles/337430/what-are-dockers-and-how-they-work-benefits-of-containerization)\


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Original Source: https://www.mindstick.com/forum/161003/what-is-docker

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