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Backstage vs Kingfisher

Both stand on plugins & extensions software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Backstage

Free plan APILinuxMac+2

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.

Visit Backstage

Kingfisher

Free plan LinuxMacSelf-hosted+1

Kingfisher combines broad secret scanning with report formats, pre-commit hooks, and optional credential-response features. Provider API checks require authorization, and revocation is limited to supported workflows.

Visit Kingfisher

The facts

BackstageKingfisher
Free planYesYes
Open sourceNot publishedNot published
Runs onAPI, Linux, Mac, Self-hosted, WebLinux, Mac, Self-hosted, Windows
Lowest paid planFree or on requestFree or on request
Plans published11
MakerNot publishedNot published
Websitebackstage.iogithub.com
On plugins & extensions software#1 of 22#2 of 22

Backstage: what it does well

  • 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.

Kingfisher: what it does well

  • Scans files, Git history, archives, databases, and cloud storage
  • Supports many developer-platform integrations
  • Exports reports in JSON, SARIF, HTML, and other formats
  • Pre-commit hooks can scan staged changes
  • Free and Apache-2.0 licensed

What to know first

  • Live validation and blast-radius checks make provider API requests
  • Revocation is opt-in and limited to supported provider workflows
  • Provider checks should only be used with authorization

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