What is the difference between Docusaurus and Tettra?

Docusaurus is best for Open-source projects and teams that want full control over their docs site, while Tettra is best for Teams wanting a simple internal knowledge base. Docusaurus starts at Free and Tettra starts at Free.

Is Docusaurus or Tettra cheaper?

Docusaurus starts at Free and is free. Tettra starts at Free with a free tier.

Is there a free alternative to Tettra?

Both Docusaurus and Tettra offer free tiers.

Docusaurus vs Tettra

Docusaurus is meta's open-source static site generator optimized for building documentation websites with React, while Tettra is simple internal knowledge base with AI-powered answers and Slack integration. Docusaurus is open source and can be self-hosted, giving you full control over your data. Docusaurus is built for open-source projects and teams that want full control over their docs site, whereas Tettra targets teams wanting a simple internal knowledge base.

At a glance

	Docusaurus	Tettra
Best for	Open-source projects and teams that want full control over their docs site	Teams wanting a simple internal knowledge base
Starting price	Free	Free
Free tier	✓	✓
Open source	✓	—
Free tier available	✓	✓
Open source	✓	—
AI Answers	—	✓
MDX Support	✓	—
Plugin System	✓	—
Slack Integration	—	✓
Static Site	✓	—
Templates	—	✓
Verification	—	✓
Versioning	✓	—
i18n	✓	—

Docusaurus

Strengths

Completely free and open source with no vendor lock-in
Full customization with React components and plugins
Built-in versioning, i18n, and search
Large community with extensive plugin ecosystem

Weaknesses

Requires developer setup and maintenance
No built-in editor for non-technical contributors
Design customization requires React knowledge
No built-in analytics or user engagement metrics

Try Docusaurus → Full review

Tettra

Strengths

Includes AI Answers as a core feature, purpose-built for documentation workflows
Includes Slack Integration as a core feature, purpose-built for documentation workflows
Free for up to 5 users — generous enough for most small teams to get real work done
Established product with 11+ years on the market and a mature ecosystem

Weaknesses

Free plan exists but key features are locked behind the paid upgrade
Fewer built-in features means you may need additional tools to cover gaps
Ecosystem of third-party integrations is smaller than the market leaders in documentation
Limited team/admin features if your organization eventually scales up

Try Tettra → Full review

The bottom line

Pricing: Both Docusaurus and Tettra are free. You can try both without spending a dollar.

Feature gaps: Docusaurus offers MDX Support, Plugin System and Static Site that Tettra lacks. Tettra brings AI Answers, Slack Integration and Templates that Docusaurus does not have.

Team fit: Docusaurus is geared toward any size teams, while Tettra is aimed at small teams teams. Pick the one that matches where your team is today and where it is headed — migrating tools later is always painful.

Open source: Docusaurus is open source, meaning you can self-host, audit the code, and avoid vendor lock-in. Tettra is proprietary — you are trusting the vendor with your data and uptime.

Where each tool shines: Docusaurus's biggest strengths are: completely free and open source with no vendor lock-in. full customization with react components and plugins. Tettra's biggest strengths are: includes ai answers as a core feature, purpose-built for documentation workflows. includes slack integration as a core feature, purpose-built for documentation workflows.

Watch out for: With Docusaurus, users commonly note that requires developer setup and maintenance. With Tettra, the main complaint is that free plan exists but key features are locked behind the paid upgrade.

Choose Docusaurus if...

You need a tool built for open-source projects and teams that want full control over their docs site
You need self-hosting, data sovereignty, or the ability to audit source code
You specifically need MDX Support and Plugin System
You care about full customization with react components and plugins
Your team size fits the any size profile Docusaurus is designed for

Choose Tettra if...

Your profile matches its sweet spot: teams wanting a simple internal knowledge base
You specifically need AI Answers and Slack Integration
You care about includes slack integration as a core feature, purpose-built for documentation workflows
Your team size fits the small teams profile Tettra is designed for
The free tier works for you: free for up to 5 users