Documentation · head to head
MkDocs vs PostHog
MkDocs
Documentation
Static site generator for project documentation in Markdown
- From
- Free
- Rated
- -
PostHog
Technology
The single platform to analyze, test, observe, and deploy new features
- From
- Free
- Rated
- -
The short version
- Each has a real cost: MkDocs no built-in versioning, which Docusaurus provides and documentation teams eventually need; PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
- They diverge on capability: MkDocs covers Plain Markdown, PostHog covers Product analytics.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which MkDocs and PostHog actually diverge.
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 MkDocs
- Plain Markdown
- Single YAML config
- Material theme
- Live preview
Only in PostHog
- Product analytics
- Session recording
- Feature flags
- A/B testing
- Heatmaps
- SQL access
- Data warehouse
- Apps platform
What people use each for
The jobs each tool is most often brought in to do.
MkDocs
- Project documentation for teams that would rather not run a JavaScript toolchainnot PostHog
- Python projects keeping docs beside the codenot PostHog
- Documentation that must build fast in CI on every commitnot PostHog
PostHog
- Product analyticsnot MkDocs
- Feature experimentationnot MkDocs
- User behavior trackingnot MkDocs
- A/B testingnot MkDocs
- Debug production issuesnot MkDocs
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
MkDocs
- No built-in versioning, which Docusaurus provides and documentation teams eventually need
- Extending past the theme means writing Python plugins
- Markdown only, so embedding interactive components is not the model
PostHog
- The free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
- Accounts without a card on file are limited to 1 project; adding one raises it to 6
- Data retention is 1 year until a card is added, which extends it to 7 years
- Support is community-only until the account is on a paid plan
- Error tracking is capped at 100K exceptions and surveys at 1500 responses per month on the free tier
Pricing, plan by plan
MkDocs
Free- MkDocsFree
- Full functionality
- Commercial use permitted
- Community support
PostHog
Free- FreeFree
- 1M events/month
- 5K sessions/month
- Unlimited users
- Paid$undefined/month
- $0.00031/event
- $0.005/session
- Advanced permissions
- Enterprise$undefined/month
- SAML SSO
- Advanced security
- Dedicated support
Which should you pick?
Choose MkDocs if
- You need plain markdown.
- You want to start without paying.
- You work on Web, Linux, macOS, Windows.
- You also want single yaml config.
Choose PostHog if
- You need product analytics.
- You want to start without paying.
- You work on Web, Ios, Android, Api.
- You also want session recording.
Questions people ask
- Is MkDocs or PostHog better?
- Neither clearly leads. MkDocs starts at Free and PostHog at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, MkDocs or PostHog?
- MkDocs starts at Free and PostHog at Free.
- Does MkDocs or PostHog run on more platforms?
- MkDocs runs on Web, Linux, macOS, Windows. PostHog runs on Web, Ios, Android, Api.
- Can I use MkDocs for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is MkDocs best used for?
- MkDocs is most often used for project documentation for teams that would rather not run a javascript toolchain, python projects keeping docs beside the code, documentation that must build fast in ci on every commit. Of those, project documentation for teams that would rather not run a javascript toolchain and python projects keeping docs beside the code are not what PostHog is typically brought in for.
- What can MkDocs do that PostHog cannot?
- MkDocs covers Plain Markdown, Single YAML config, Material theme, Live preview. PostHog covers Product analytics, Session recording, Feature flags, A/B testing.
Answered from the vendors’ own pages
MkDocs: Is MkDocs free?
Yes, open source under the BSD licence. The Material theme has a free version and a paid Insiders edition.
PostHog: What does PostHog's free tier include per month?
PostHog free tier includes: 1M analytics events, 5K session replays, 1M feature flag requests, 100K error tracking exceptions, 1,500 survey responses, 1M data warehouse rows, 10K data pipeline events, 100K AI observability events, 500 PostHog AI credits, 10K workflow messages, and 10GB log ingestion. Source: https://posthog.com/pricing
SourceMkDocs: MkDocs or Docusaurus?
MkDocs is simpler and faster to adopt, especially for Python teams. Docusaurus offers versioning, internationalisation and React components, which matter once documentation grows.
PostHog: How much data retention does PostHog provide on paid plans?
PostHog free tier provides 1-year data retention. Pay-as-you-go plans offer 7-year data retention across all projects, enabling longer historical analysis. Source: https://posthog.com/pricing
SourceMkDocs: Does MkDocs support versioned docs?
Not natively. Plugins such as mike add it, where Docusaurus includes versioning in core.
PostHog: What percentage of PostHog users stay on the free tier?
PostHog states that 97% of companies use PostHog for free, indicating extensive free tier adoption. However, specific per-unit pricing rates for overages on paid plans are not published. Source: https://posthog.com/pricing
SourcePostHog: When does PostHog provide priority support on paid plans?
PostHog provides email or Slack support for accounts exceeding $2,000/month on pay-as-you-go plans. Specific response times and support SLAs are not detailed on their pricing page. Source: https://posthog.com/pricing
SourceRelated pages
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