Pulumi

Open-source infrastructure as code (IaC) platform.

Overview

Pulumi is an open-source infrastructure as code (IaC) platform that enables teams to define, deploy, and manage cloud infrastructure using real programming languages instead of domain-specific languages. It supports TypeScript, Python, Go, C#, Java, and YAML, allowing developers to leverage familiar tools, IDEs, and testing frameworks.

The platform provides a complete suite for infrastructure teams: core IaC capabilities, AI-powered infrastructure automation via Pulumi Neo, secrets and configuration management through Pulumi ESC, insights and governance for compliance and policy enforcement, and internal developer platform features for self-service infrastructure. Pulumi is trusted by over 4,000 companies including Snowflake, Mercedes-Benz, and Supabase.

Pulumi offers a free tier for individuals and open-source projects, with paid plans for teams and enterprises that include collaboration features, advanced governance, and professional support.

Key features

Multi-language IaC (TypeScript, Python, Go, C#, Java, YAML)
AI infrastructure agent (Pulumi Neo)
Secrets and configuration management (Pulumi ESC)
Policy enforcement and compliance governance
Internal developer platform capabilities
170+ cloud provider integrations
Reusable components and package management
Drift detection and remediation

Pros

Write infrastructure in familiar programming languages with full IDE support
Reusable components via npm, PyPI, NuGet package managers
Unified platform covering full infrastructure stack
SOC 2 Type II certified with encrypted secrets and audit trails
Strong community (10k+ developers on Slack)
Trusted by large enterprises (Snowflake, Mercedes-Benz, Supabase)

Cons

Steeper learning curve compared to declarative IaC tools
Requires programming language knowledge
Pricing can scale significantly with resource usage
Smaller ecosystem compared to Terraform

Use this if

You need to manage infrastructure across multiple clouds using programming languages your team already knows, want strong policy enforcement and compliance features, or are building an internal developer platform for your organization.

Skip this if

You prefer declarative configuration languages like HCL, need the largest ecosystem of pre-built modules, or want the lowest learning curve for non-developers.

Best for

Platform engineering teamsMulti-cloud infrastructure managementTeams using TypeScript, Python, Go, C#, or JavaOrganizations needing policy enforcement and complianceInternal developer platform adoptionInfrastructure automation with AI agents