APIs · head to head
KeystoneJS vs Read the Docs
KeystoneJS
APIs
Powerful Node.js headless CMS framework and API platform
- From
- Free
- Rated
- -
Read the Docs
Documentation
Documentation hosting with versioning built for open source
- From
- Free
- Rated
- -
The short version
- Each has a real cost: KeystoneJS database support is limited to PostgreSQL, MySQL and SQLite; Read the Docs build configuration is finicky, and build failures on dependency changes are a common frustration
- They diverge on capability: KeystoneJS covers REST API, Read the Docs covers Build on commit.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which KeystoneJS and Read the Docs actually diverge.
| Attribute | KeystoneJS | Read the Docs |
|---|---|---|
| Pricing model | open-source | Free for open source; paid business plans for private documentation |
| Platforms | Node.js, Self-hosted | Web, Cloud |
| Category | APIs | Documentation |
| Founded | 2016 | Unknown |
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in KeystoneJS
- REST API
- GraphQL API
- Admin interface
- Node.js
- Next.js
- React
- Databases
- Node.js support
Only in Read the Docs
- Build on commit
- Version by branch and tag
- Pull request previews
- Free for open source
What people use each for
The jobs each tool is most often brought in to do.
KeystoneJS
- Headless CMS implementationnot Read the Docs
- Content management systemsnot Read the Docs
- Customizable API-driven applicationsnot Read the Docs
Read the Docs
- Open-source projects needing free hosted versioned documentationnot KeystoneJS
- Teams wanting docs rebuilt automatically on every commitnot KeystoneJS
- Reviewing documentation changes in a pull request before mergenot KeystoneJS
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
KeystoneJS
- Database support is limited to PostgreSQL, MySQL and SQLite
- Keystone 5 is a separate legacy product documented on a different site and is not covered by the Keystone 6 docs
- Upgrading requires following a dedicated Migrate to 8.0.0 guide, so major versions are not drop-in
- Free support is a community Slack; enterprise-grade consulting and support is a separate paid engagement with Thinkmill and no published price
Read the Docs
- Build configuration is finicky, and build failures on dependency changes are a common frustration
- Default themes are recognisable and dated, so sites look alike unless customised
- Private documentation requires a paid business plan
- Build times on large projects are slow enough to interrupt a review cycle
Pricing, plan by plan
KeystoneJS
Free- Open SourceFree
- Full KeystoneJS
- Community support
Read the Docs
Free- FreeFree
- Core functionality
- Public projects
Which should you pick?
Choose KeystoneJS if
- You need rest api.
- You want to start without paying.
- You work on Node.js, Self-hosted.
- You also want graphql api.
Choose Read the Docs if
- You need build on commit.
- You want to start without paying.
- You work on Web, Cloud.
- You also want version by branch and tag.
Questions people ask
- Is KeystoneJS or Read the Docs better?
- Neither clearly leads. KeystoneJS starts at Free and Read the Docs at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, KeystoneJS or Read the Docs?
- KeystoneJS starts at Free and Read the Docs at Free.
- Does KeystoneJS or Read the Docs run on more platforms?
- KeystoneJS runs on Node.js, Self-hosted. Read the Docs runs on Web, Cloud.
- Can I use KeystoneJS for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is KeystoneJS best used for?
- KeystoneJS is most often used for headless cms implementation, content management systems, customizable api-driven applications. Of those, headless cms implementation and content management systems are not what Read the Docs is typically brought in for.
- What can KeystoneJS do that Read the Docs cannot?
- KeystoneJS covers REST API, GraphQL API, Admin interface, Node.js. Read the Docs covers Build on commit, Version by branch and tag, Pull request previews, Free for open source.
Answered from the vendors’ own pages
KeystoneJS: Is KeystoneJS free?
Yes, KeystoneJS is free and open source with no licensing fees. Core platform has no lock-in and is contributed to by 250+ developers.
SourceRead the Docs: Is Read the Docs free?
Free for open-source public projects. Private documentation requires a paid business plan.
KeystoneJS: What are hosting costs for KeystoneJS?
KeystoneJS is self-hosted and deployment-agnostic. Hosting costs depend on your chosen deployment platform (Vercel, AWS, Heroku, etc.) and infrastructure, not KeystoneJS itself.
SourceRead the Docs: What does it build from?
Most commonly Sphinx or MkDocs sources kept in your repository.
KeystoneJS: Does KeystoneJS offer paid support?
Enterprise support with tailored options is available from Thinkmill, the company behind KeystoneJS. Pricing details available upon request.
SourceRead the Docs: How does versioning work?
It maps branches and tags to documentation versions, so several releases are served side by side without manual work.
Related pages
More on Read the Docs
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- Read the Docs vs Antora
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- Read the Docs vs Bump.sh
- Read the Docs vs Fumadocs
- Read the Docs vs Scalar
- Read the Docs vs Grammarly
- Read the Docs vs Slab
- Read the Docs vs Starlight
- Read the Docs vs VitePress
- Read the Docs vs Guidde