What are the best open source alternatives to Spacelift?

The top open source alternatives to Spacelift include Digger and Terrateam. These tools offer similar functionality while being free and open source.

Why choose an open source alternative to Spacelift?

Open source alternatives provide transparency, community support, no vendor lock-in, and often cost savings. You can customize the software to your needs and have full control over your data.

Are these Spacelift alternatives really free?

Yes, all listed alternatives are open source and free to use. You may need to pay for hosting if you self-host, but the software itself is free.

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Open Source Spacelift Alternatives

A curated collection of the 2 best open source alternatives to Spacelift.

The best open source alternative to Spacelift is Digger. If that doesn't suit you, we've compiled a ranked list of other open source Spacelift alternatives to help you find a suitable replacement. Other interesting open source alternative to Spacelift is Terrateam.

Spacelift alternatives are mainly Infrastructure as Code (IaC) Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Spacelift.

Written by Piotr Kulpinski

Last updated: August 26, 2026

Spacelift

CI/CD platform for infrastructure-as-code that manages Terraform, OpenTofu, Pulumi, Ansible, and Kubernetes workflows with policy enforcement, drift detection, and multi-cloud support.

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Digger

Open-source CI/CD orchestrator for Terraform with pull request automation, drift detection, and enterprise-grade security. Self-hostable with private runners.

Digger transforms Terraform workflows by bringing pull request automation directly into your existing CI/CD pipeline. This open-source orchestrator runs terraform plan automatically when pull requests are opened, displaying formatted output as comments for seamless code review.

Key capabilities include:

Pull Request Automation - Automatic plan generation and formatted comments on every PR
Drift Detection - Continuous monitoring with alerts via Slack, GitHub Issues, Jira, or Linear
Concurrency Control - Parallel execution of independent jobs with smart PR-level locking
Private Runners - Enterprise-grade security with self-hosted execution environments
Dynamic Project Generation - Automatically discovers and manages large numbers of state files
Policy as Code - Centralized governance and compliance management

Built for enterprise teams who need reliable, scalable infrastructure automation without vendor lock-in. The self-hostable architecture ensures your credentials and state remain under your control, while the open-source foundation provides transparency and community-driven innovation.

Trusted by cloud-native leaders for faster deployments, enhanced security, and comprehensive audit trails. Get production-ready Terraform CI/CD running in minutes with your existing GitHub Actions or CI/CD platform.

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Terrateam

Automate infrastructure changes with secure GitOps workflows. Plan, validate, and deploy Terraform, OpenTofu, and Pulumi directly from pull requests.

GitOps-native infrastructure orchestration that brings structure, security, and speed to your infrastructure workflows. Terrateam works directly in your existing pull request workflow, supporting Terraform, OpenTofu, CDKTF, Pulumi, Terragrunt, and any CLI tool.

Key capabilities include:

Cost estimates in every PR - See financial impact before deployment with built-in cost estimation
Workspace-level RBAC - Fine-grained access control with Gatekeeper approvals for policy exceptions
Monorepo support - Parallel runs, drift detection, and caching for complex repositories
Pull request-native workflows - Works with your existing PR process, comments, and approvals
Policy enforcement - Automated validation of plans, policies, and costs inside pull requests
Flexible deployment - Self-host or use single-tenant cloud offering

The platform enforces team-based approvals and security rules while maintaining developer autonomy. With declarative YAML configuration that lives in your repository, teams can scale infrastructure management without hiring specialists. Trusted by startups through enterprise organizations for SOC 2 compliance and audit trails.