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It's a split decision.
Salt is an open-source automation framework for remote execution, configuration management, and infrastructure orchestration across managed systems. Spacelift coordinates IaC and GitOps workflows, policy controls, self-service, and Day 2 operations. Pick Salt when you need an open-source framework to manage fleets from a control plane. Pick Spacelift when your team needs a platform for Terraform and other IaC workflows, with governance and drift management. Spacelift publishes a free tier and paid plans; Salt’s commercial pricing is not published.
01Side by side
| Salt | Spacelift | |
|---|---|---|
| Pricing model | Open-source; no commercial price listed | Free plan; Starter starts at $399/month annually |
| Free tier | No named free-plan quota | 2 users, 1 API key, Spaces, IaC, OIDC SSO |
| Open source and licence | Open-source; exact licence not named | Open-source status and licence not stated |
| Self-hosting | Self-hosting not stated | Self-hosting supported |
| API and SDKs | Full module and API reference; SDKs unspecified | MCP server support; API and SDK details unspecified |
| Integrations | No product integrations named | Terraform, OpenTofu, CloudFormation, Pulumi, Kubernetes, Ansible, MCP |
| Platforms | Web | Web |
| Limits and scaling | Homepage says teams manage thousands of systems | Free: 2 users/1 key; Enterprise starts at 5 workers |
Salt Choose Salt if
- Choose Salt if you need open-source remote execution and configuration management.
- Choose Salt if your workflows centre on states, grains, and pillars.
- Choose Salt if you want a control plane for managing large system fleets.
Spacelift Choose Spacelift if
- Choose Spacelift if you standardize Terraform, OpenTofu, or other IaC workflows.
- Choose Spacelift if teams need policy guardrails, drift visibility, and remediation.
- Choose Spacelift if developers need self-service blueprints and platform-team controls.
02Pricing at real usage
Salt is open source, but its commercial pricing and billing model are not published. There is no listed Salt plan price to compare with a Spacelift subscription; costs for the infrastructure that runs Salt are separate from any vendor charge.
Spacelift has a Free plan for 2 users and 1 API key, with Spaces, IaC support, and OIDC SSO integration. Starter is listed at $399 per month on annual billing and includes 10 users, 2 public workers, a private module registry, Policy as Code, and webhooks. Business is an annual subscription, but its price is not published. Enterprise is also annual, starts at 5 workers, and offers monthly or annual payment; its price is not published.
The pricing page does not list per-run or per-resource rates. Budget around the plan and worker requirements, and ask Spacelift for Business or Enterprise pricing before sizing a rollout.
03API, SDKs and integration
Salt’s documentation includes an install guide, a user guide, and a full module and API reference. The user guide covers states, grains, and pillars, which are central concepts for working with Salt configuration. The docs do not specify a public SDK or API protocol, so check the reference before building an integration around a particular client or language.
Spacelift supports Terraform, OpenTofu, CloudFormation, Pulumi, Kubernetes, and Ansible workflows. Its homepage also describes connecting agents through MCP servers that teams control. Spacelift uses OPA-based policies for plans, approvals, and notifications, and offers webhooks on Starter. The published product details do not specify SDK languages or an API protocol; MCP support is not a substitute for confirming those interfaces.
For either tool, map your existing pipeline and automation interfaces to the documented capabilities before committing to an integration design.
04Open source, self-hosting and lock-in
Salt is open source, but the Salt Project does not name the licence on its homepage. Its documentation covers states, grains, and pillars, and the homepage links to the project on GitHub. Self-hosting terms and data-export guarantees are not published there, so confirm them before adopting Salt as a control plane.
Spacelift’s open-source status and licence are not stated. The product is self-hostable, and its workflows cover common IaC tools, including Terraform and OpenTofu. Its homepage describes stacks, dependencies, state, policies, and blueprints, all of which can become part of a team’s operating model.
Neither product’s published details establish data-export guarantees. Before rollout, ask how to export configuration, state, run history, policies, and audit records. Salt’s open-source code offers a different path from relying on a hosted platform, but migration effort still depends on the automation and integrations your team builds.
Questions people ask
Is Salt cheaper than Spacelift?
Salt is open source, and no commercial price is listed, so there is no vendor plan price to compare. Spacelift has a free tier and a Starter plan listed at $399 per month on annual billing. Salt’s infrastructure and maintenance still have costs; Spacelift’s Business and Enterprise prices are not published.
Can Salt replace Spacelift?
Salt covers remote execution, configuration management, and infrastructure orchestration. Spacelift adds workflows for IaC tools, policy guardrails, drift visibility, blueprints, and Day 2 operations. Salt may fit fleet automation, but its documented role does not establish a like-for-like replacement for Spacelift’s IaC governance features.
Can Spacelift replace Salt?
Spacelift supports Ansible and automates Day 2 operations, but its core focus is governed IaC and GitOps workflows. Salt is an open-source framework for remote execution and configuration management across managed systems. Whether Spacelift covers a Salt use case depends on the specific automation and system-management tasks involved.
Which product can we self-host?
Spacelift is listed as self-hostable. Salt is open source, but its self-hosting details are not stated on the homepage. Confirm Salt’s deployment requirements and Spacelift’s self-hosting terms with each vendor before choosing a control-plane model.