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Terraform logo

Terraform

Infrastructure as Code

freemiumverified Jul 16, 2026

HashiCorp's infrastructure-as-code tool for provisioning and managing cloud resources declaratively using HCL (HashiCorp Configuration Language). Write infrastructure definitions once and deploy to AWS, GCP, Azure, DigitalOcean, and 4,000+ providers. Features state management for tracking resources, plan/apply workflow for safe changes, modules for reusability, and workspaces for environment isolation. The industry standard for multi-cloud IaC with 48K+ GitHub stars.

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Terraform is HashiCorp's source-available Infrastructure-as-Code tool that enables teams to define, provision, and manage cloud infrastructure using declarative configuration files written in HCL (HashiCorp Configuration Language). It describes the desired end-state of infrastructure rather than step-by-step instructions, and automatically determines the actions needed to reach that state. Terraform maintains a state file that tracks the real-world resources it manages, allowing it to calculate precise changes needed when configurations are updated.

The platform supports over 1,000 providers for managing resources across AWS, Azure, Google Cloud, Kubernetes, GitHub, Cloudflare, and hundreds of other services. Terraform's modular architecture allows teams to compose reusable infrastructure modules that encode organizational best practices and can be shared via the Terraform Registry. Key features include execution plans that preview changes before applying them, resource dependency graphing for optimal provisioning order, and state locking to prevent concurrent modification conflicts.

Terraform serves DevOps engineers, platform teams, and infrastructure architects who need to manage multi-cloud environments consistently and reproducibly. HCP Terraform (formerly Terraform Cloud) adds collaboration features including remote state storage, team access controls, policy enforcement via Sentinel, and cost estimation for planned changes. The tool is widely adopted across enterprises for provisioning everything from virtual machines and databases to DNS records and monitoring dashboards, making it the most popular IaC solution in the industry.

Pricing

Free (CLI) / HCP Terraform from $0 (free tier)

Platforms

CLI (macOS, Linux, Windows)

Categories

Tags

Use Cases

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Netlify

Web platform for modern development

Jamstack-focused cloud platform specializing in deploying static sites, serverless functions, and modern web applications with Git-based CI/CD. Features instant rollbacks, deploy previews for every PR, split testing, edge functions, form handling, identity/auth, and a global CDN with automatic HTTPS. Native support for Next.js, Nuxt, Gatsby, Hugo, Astro, and all major static site generators. Free $0 forever plan plus Personal and Pro credit-based tiers for growing traffic and team workflows.

freemium
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Railway

Infrastructure, instantly

Modern cloud platform for deploying full-stack apps, databases, and workers with instant provisioning and usage-based pricing. Deploy from GitHub or CLI with zero config for Node.js, Python, Go, Rust, and Docker. Built-in PostgreSQL, MySQL, Redis, and MongoDB with auto backups. Features private networking, environment management, cron jobs, TCP proxying, and real-time logs. Popular with indie hackers and startups for fast MVPs with a generous free trial including $5 monthly credits.

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Fly.io

Run your app close to users

Global application hosting platform that runs full-stack apps, databases, and services close to users in 30+ regions using lightweight Firecracker micro-VMs. Deploy Docker containers or use built-in builders for Rails, Laravel, Django, Node.js, and Go. Features persistent volumes, private networking, auto-scaling, PostgreSQL/Redis managed databases, and a powerful CLI. Ideal for latency-sensitive apps needing multi-region presence. Generous free allowance with pay-as-you-go pricing.

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Crossplane

Kubernetes-native cloud infrastructure control plane

Crossplane is a CNCF Graduated open-source project that extends Kubernetes to manage cloud infrastructure through declarative APIs. Platform teams compose custom infrastructure abstractions as Compositions and publish them as self-service APIs. It provisions resources across AWS, Azure, GCP, and 200+ providers directly from kubectl. Used by 450+ organizations with 11,000+ GitHub stars.

Open Source

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Used in Stacks

Comparisons

Terraform vs OpenTofu — Established IaC Standard vs Community-Governed Open-Source Fork

Terraform and OpenTofu share the same codebase origin but diverge on licensing and governance. Terraform operates under HashiCorp's Business Source License with the largest IaC ecosystem of 4,800+ providers. OpenTofu is the Linux Foundation-governed fork under the Mozilla Public License 2.0 with 100 percent backward compatibility to Terraform 1.5.x, offering an open-source guarantee that Terraform no longer provides.

TerraformOpenTofu

Terraform vs Pulumi — Declarative HCL vs Programmatic IaC with Real Languages

Terraform and Pulumi are the two most prominent Infrastructure as Code tools in 2026, representing fundamentally different approaches to cloud provisioning. Terraform uses HCL, a purpose-built declarative language with the largest provider ecosystem of 4,800+ integrations. Pulumi lets you define infrastructure in general-purpose programming languages like TypeScript, Python, and Go, bringing full language features to infrastructure management.

TerraformPulumi

Atlantis vs Terraform Cloud — Open-Source PR Automation vs HashiCorp's Managed Platform

Atlantis and Terraform Cloud both automate Terraform workflows through pull requests, but they represent fundamentally different approaches. Atlantis is a free, self-hosted Go binary that adds plan/apply automation to your existing Git workflow. Terraform Cloud is HashiCorp's managed platform with state management, policy enforcement, and a full governance suite. This comparison helps platform teams choose between open-source freedom and managed enterprise features.

AtlantisTerraform

FAQ

What is Terraform?

HashiCorp's infrastructure-as-code tool for provisioning and managing cloud resources declaratively using HCL (HashiCorp Configuration Language). Write infrastructure definitions once and deploy to AWS, GCP, Azure, DigitalOcean, and 4,000+ providers. Features state management for tracking resources, plan/apply workflow for safe changes, modules for reusability, and workspaces for environment isolation. The industry standard for multi-cloud IaC with 48K+ GitHub stars.

Is Terraform free?

Terraform offers a free tier alongside paid plans. Free (CLI) / HCP Terraform from $0 (free tier)

Is Terraform still maintained?

Yes — Terraform is active. Its listing was last verified on July 16, 2026.

What are the best Terraform alternatives?

The top editor-verified Terraform alternatives are Netlify, Railway, Fly.io, and more.

How does Terraform score in our review?

Our hands-on review scores Terraform 85/100 overall, based on speed, privacy, and developer-experience testing.