Following are the reasons that Terraform is preferred as one of the DevOps tools :

• Terraform allows you to specify infrastructure in config/code, making it simple to rebuild, alter, and track infrastructure changes. Terraform is a high-level infrastructure description.
• While there are a few alternatives, they are all centred on a single cloud provider. Terraform is the only powerful solution that is totally platform-neutral and supports different services.
• Terraform allows you to implement a variety of coding concepts, such as putting your code under version control, writing automated tests, and so on.
• Terraform is the best tool for infrastructure management since many other solutions suffer from an impedance mismatch when attempting to use an API meant for CONFIGURING management to govern an infrastructure environment. Instead, Terraform is a perfect match for what you want to do because the API is built around how you think about infrastructure.
• Terraform has a thriving community and is open source, so it's attracting a sizable following. Many people already use it, making it easy to discover individuals who know how to use it, as well as plugins, extensions, and EXPERT ASSISTANCE. Terraform is also evolving at a much faster rate as a result of this. They have a lot of releases.
• Terraform's speed and efficiency are unrivalled. Terraform's plan command, for example, allows you to see what changes you're about to make before you do them. Terraform and its code reuse feature makes most modifications faster than SIMILAR tools like CloudFormation.