Read the Docs vs Sphinx

Read the Docs9.2Visit Sphinx9.0Visit

Higher score Read the Docs #2 in Technical Documentation Software 9.2/10 Free plan · 30-day trial Free planFree trial✓ 1 of 5 features Visit Read the Docs

vs

Sphinx #3 in Technical Documentation Software 9.0/10 Free plan Free plan✓ 1 of 5 features Visit Sphinx

• Read the Docs fits best

  Repository-driven teams hosting many doc tools

• Sphinx fits best

  Developers needing free, extensible documentation builds

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Side by side

Feature	Read the Docs 9.2/10 Visit ↗	Sphinx 9.0/10 Visit ↗
At a glance
Editor score	9.2	9.0
Ranking	#2 in Technical Documentation Software	#3 in Technical Documentation Software
Best for	Repository-driven teams hosting many doc tools	Developers needing free, extensible documentation builds
Pricing model	Free plan + paid	Free
Starting price	$50/mo	Free plan
Free plan	✓	✓
Free trial	30 days	—
Deployment	Cloud	Self-hosted
Platforms	Web	Windows, macOS, Linux
Support	Email, Tickets, Docs	Community, Docs
Built for	Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Read the Docs 1/5 · Sphinx 1/5
Custom domain	✓ (best)	Not checked yet
Private documentation	Not checked yet	Not checked yet
Documentation versioning	Not checked yet	Not checked yet
Full-text search	Not checked yet	✓ (best)
Reader analytics	Not checked yet	Not checked yet
Specs
Paid author limit	Not checked yet	Not checked yet
Our review
Pros	Automatic builds, pull-request previews, and rendered visual diffs Supports Sphinx, MkDocs, Docusaurus, VitePress, and more Versioning, search, analytics, custom domains, and private hosting	Supports reStructuredText and MyST Markdown authoring Builds HTML, PDF, ePub, Texinfo, and other outputs Extensible with themes, extensions, and automatic API documentation
Cons	Commercial plans start at $50 per month Advanced SSO and support features vary by plan Enterprise pricing is $10,000 per year	Requires local or self-hosted deployment Does not provide hosted documentation SaaS features Custom domains and traffic analytics depend on external hosting
Our verdict	Read the Docs builds, hosts, and deploys software documentation from Git repositories. It suits software teams and organizations that maintain documentation across tools such as Sphinx, MkDocs, Docusaurus, and VitePress. Community provides… Read the review →	Sphinx is an open-source documentation generator for software projects and technical teams. Authors can write in reStructuredText or MyST Markdown, then build documentation for HTML, PDF, ePub, Texinfo, manual pages, and other formats. It… Read the review →

Strengths and trade-offs

• Read the Docs — where it wins

  • Automatic builds, pull-request previews, and rendered visual diffs
  • Supports Sphinx, MkDocs, Docusaurus, VitePress, and more
  • Versioning, search, analytics, custom domains, and private hosting

  Where it doesn't

  • Commercial plans start at $50 per month
  • Advanced SSO and support features vary by plan
  • Enterprise pricing is $10,000 per year

• Sphinx — where it wins

  • Supports reStructuredText and MyST Markdown authoring
  • Builds HTML, PDF, ePub, Texinfo, and other outputs
  • Extensible with themes, extensions, and automatic API documentation

  Where it doesn't

  • Requires local or self-hosted deployment
  • Does not provide hosted documentation SaaS features
  • Custom domains and traffic analytics depend on external hosting

• Read the Docs9.2/10 · Free plan · 30-day trial

  A repository-driven documentation platform with strong versioning and build workflows.

  Visit Read the DocsFull verdict →
• Sphinx9.0/10 · Free plan

  A free, open-source documentation generator for extensible developer workflows.

  Visit SphinxFull verdict →