KeystoneJS vs Silverstripe CMS

KeystoneJS and Silverstripe CMS solve different problems for developers. KeystoneJS is a free, MIT-licensed Node.js/TypeScript headless CMS that…

Best for KeystoneJS: KeystoneJS suits Node.js/TypeScript developers who want a schema-driven GraphQL API and admin UI for a custom frontend, and who are comfortable self-deploying to their own cloud infrastructure.
Best for Silverstripe CMS: Silverstripe CMS suits teams wanting an integrated, PHP-based CMS with a built-in templating engine, 2,500+ ready-made modules, and the option of Silverstripe Limited's certified managed Cloud hosting.

At a Glance

 KeystoneJSSilverstripe CMS
Primary categoryCMSCMS
RatingNot documentedNot documented
Pricing modelOpen SourceFree / open source (commercial support, hosting and development available)
Starting priceFreeFree
Free planNot documentedNot documented
Free trialNot documentedNot documented
PlatformsWebWeb
Team collaborationNot documentedNot documented
AI featuresNot documentedNot documented
Public APIYesNot documented

Key Differences

Architecture Model

KeystoneJS: KeystoneJS is a headless CMS that auto-generates a GraphQL API and admin UI from a schema, intended to power a separate custom frontend.

Silverstripe CMS: Silverstripe CMS is a traditional full-stack CMS with a built-in templating engine for direct page rendering.

Headless versus traditional architecture changes how a frontend is built and who owns page rendering.

Tech Stack

KeystoneJS: KeystoneJS is written in TypeScript (99% of the codebase) and runs on Node.js.

Silverstripe CMS: Silverstripe CMS is a PHP framework and CMS.

Determines which developers and hosting environments are compatible.

Managed Hosting

KeystoneJS: KeystoneJS has no packaged managed hosting product; it's deployable to DigitalOcean, Heroku, Render, Vercel, AWS, Azure, or Google Cloud, self-managed.

Silverstripe CMS: Silverstripe Cloud is an ISO/IEC 27001-certified managed hosting product, though pricing is quote-based.

A packaged managed-hosting option removes infrastructure setup work but comes at a cost.

Ecosystem Scale

KeystoneJS: KeystoneJS reports over 1 million npm installs and 250+ contributors.

Silverstripe CMS: Silverstripe reports 50,000+ live installations and 2,500+ community modules.

The two ecosystems measure adoption differently (package installs vs. live sites), reflecting their different use cases.

Commercial Support Path

KeystoneJS: Paid support for KeystoneJS is only available as a separate enterprise contract through Thinkmill, not a packaged pricing tier.

Silverstripe CMS: Silverstripe is backed by commercial company Silverstripe Limited, which also runs the quote-based Silverstripe Cloud.

Neither publishes fixed support pricing, but the support relationship differs (project maintainer vs. dedicated commercial CMS vendor).

Feature-by-Feature

Architecture & API

FeatureKeystoneJSSilverstripe CMS
Auto-generated GraphQL API from schemaAvailableNot documented
Auto-generated admin UI from schemaAvailableNot documented
Built-in templating engine for page renderingUnavailableAvailable
Field/list/operation-level access controlAvailableAvailable

Deployment & Hosting

FeatureKeystoneJSSilverstripe CMS
Official managed cloud hostingUnavailableAvailable
Self-hosting on major public cloudsAvailableNot documented
Automatic database migrationsAvailableNot documented

Ecosystem & Support

FeatureKeystoneJSSilverstripe CMS
Community scale indicatorAvailableAvailable
Paid enterprise supportAvailableAvailable
Permissive open-source licenseAvailableAvailable

Pricing Compared

Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.

KeystoneJS

Open Source — Free N/A

Silverstripe CMS

Silverstripe CMS (Open Source) — $0 Free, self-hosted
Commercial Support and Hosting — Custom Project or contract based

Pros & Cons

KeystoneJS

Pros

  • Completely free, open-source, self-hosted with no licensing fees
  • GraphQL API and admin UI generated automatically from schema
  • Strong TypeScript support and Prisma-based migrations
  • Fine-grained, code-defined access control
  • Backed by an experienced consultancy (Thinkmill) with enterprise delivery history

Cons

  • No official managed hosting offering from the Keystone project
  • Requires Node.js and database operational expertise to self-host
  • Smaller ecosystem and plugin marketplace than Strapi or WordPress
  • GraphQL-first design has a learning curve for teams used to REST
  • Migration from older Keystone (v5/Express/MongoDB) versions requires significant rework

Silverstripe CMS

Pros

  • Free and open source with no software licensing cost
  • Over two decades of active development and a mature codebase
  • Strong track record with government and large enterprise deployments
  • API-first architecture supports headless and multi-channel content delivery
  • Large ecosystem of modules and an established partner network

Cons

  • Requires PHP development expertise to customize beyond out-of-the-box functionality
  • Smaller global market share and community than WordPress or Drupal
  • Self-hosting means the organization is responsible for infrastructure, updates, and security patching unless using a managed partner
  • Learning curve for content editors coming from simpler page builders
  • Commercial support and custom development costs vary and are not fixed like a SaaS subscription

Use Cases

Choose KeystoneJS: KeystoneJS suits Node.js/TypeScript developers who want a schema-driven GraphQL API and admin UI for a custom frontend, and who are comfortable self-deploying to their own cloud infrastructure.
Choose Silverstripe CMS: Silverstripe CMS suits teams wanting an integrated, PHP-based CMS with a built-in templating engine, 2,500+ ready-made modules, and the option of Silverstripe Limited's certified managed Cloud hosting.
Need both: A team could plausibly pair the two if it runs a decoupled application or marketing site on KeystoneJS as the content API while using Silverstripe CMS for a separate, more traditional PHP-rendered site within the same organization, though this is an unusual setup rather than a common combined workflow.

KeystoneJS

  • Custom application backends — Development teams use KeystoneJS to build backends for web and mobile applications with a generated GraphQL API.
  • Content-driven websites — Teams build static and dynamic marketing sites and blogs powered by Keystone's content model and admin UI.
  • Multi-channel content distribution — Organizations use Keystone's GraphQL API to distribute content across web, mobile and other channels from one source.

Silverstripe CMS

  • Government and public sector websites — Government agencies use Silverstripe CMS for its security features, approval workflows, and track record on public sector projects.
  • Enterprise multi-channel content delivery — Large organizations use Silverstripe's API-first, headless capabilities to deliver the same content to a website, mobile app, and other digital channels.
  • Agency-built custom websites — Web development agencies use Silverstripe's flexible framework to build custom, developer-controlled websites for clients that need more than a template-based builder.

Frequently Asked Questions

Is KeystoneJS headless while Silverstripe is a traditional CMS?

Yes. KeystoneJS generates a GraphQL API and admin UI from a schema for use with a separate custom frontend (Node.js/TypeScript). Silverstripe CMS has a built-in templating engine for full-stack page rendering (PHP).

Which requires more developer skill to run?

Both require developer involvement. KeystoneJS is explicitly a developer framework requiring Node.js skills, not a no-code tool. Silverstripe's cons note it requires PHP development expertise to customize beyond out-of-the-box functionality.

Does either offer official managed hosting?

Silverstripe Cloud exists as a quote-based, ISO/IEC 27001-certified managed hosting product. KeystoneJS has no packaged managed hosting; it's deployed manually to hosts like DigitalOcean, Heroku, Render, Vercel, AWS, Azure, or Google Cloud.

How does KeystoneJS handle database migrations?

Keystone handles schema migrations automatically through Prisma. This isn't documented for Silverstripe.

Should I use Keystone 5 or Keystone 6?

Keystone 5 is in maintenance mode; only Keystone 6, published under the @keystone-6/* npm namespace, receives active development.

Which has a larger ecosystem?

Silverstripe has 2,500+ community modules and 50,000+ live installations. KeystoneJS reports over 1 million npm installs and 250+ contributors — different metrics reflecting their different distribution models (installable modules vs. npm packages).

Read the full KeystoneJS review · Read the full Silverstripe CMS review