Backstage

Backstage is a free, open-source framework for building and deploying developer portals. Its software catalog records ownership and metadata for services, websites, libraries, and data pipelines, supporting teams managing a small set of services as well as companies with thousands. Software Templates fill code skeletons with variables and publish generated projects to locations such as GitHub or GitLab. TechDocs keeps documentation close to code, while integrations can read or publish data through providers such as GitHub, GitLab, Bitbucket, LDAP, and cloud providers. Teams can customize a portal with open-source plugins or their own; Backstage Search can index sources including TechDocs, Confluence, and Stack Overflow. Its Kubernetes feature aggregates service deployments using the Kubernetes API. Backstage is self-hosted. The standalone guide sets up a local demo with an in-memory SQLite database, but that configuration is not production-ready. Minimum requirements are 20 GB of disk and 6 GB of memory, with more disk needed as modules and plugins are added. The threat model recommends careful authentication configuration and a protected environment.

Who it is for

Backstage suits product and engineering organizations that need a shared developer portal and software catalog. It is for teams prepared to self-host and configure the portal and its security.

What is good

  • Free, open-source framework.
  • Catalog tracks software ownership and metadata.
  • Templates publish generated projects to GitHub or GitLab.
  • TechDocs keeps documentation close to code.
  • Kubernetes feature aggregates service deployments.

What to know first

  • Self-hosted deployment required.
  • Standalone demo setup is not production-ready.
  • Minimum requirements include 20 GB disk and 6 GB memory.
  • Denial-of-service protection is described as rudimentary.

Verdict

Backstage brings a software catalog, documentation, templates, search, and integrations into a customizable developer portal. Organizations should plan for self-hosting and a protected deployment environment.

Backstage plans and pricing

All plans
Backstage open-source framework Free No price or plan limits stated on the official site backstage.io · 30 Sept 2026

Compared on application dependency mapping software

Free plan
Yes

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