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Best Liam ERD Alternatives in 2026

7 top Documentation tools you can use instead of Liam ERD, with pricing and key features.

Liam ERD

ER Diagrams, Reinvented for Simplicity

DocumentationOpen Source
  • Interactive Diagram Viewer
  • Collaborative Sharing
  • CI/CD Documentation
  • Multi-Format Support
Liam ERD screenshot

Liam ERD alternatives

Build your APIs as a team

DocumentationFrom $50 / month
  • Docs that match your API
  • Changelog & change detection
  • MCP platform & hosting

Where technical teams document

DocumentationFree plan available
  • AI-Optimized Documentation
  • User-Adaptive Rendering
  • API & Product Docs Support

A powerful, flexible, Markdown-based authoring framework

DocumentationOpen Source
  • Familiar syntax
  • Easily extensible
  • Built-in validation

The Intelligent Documentation Platform

DocumentationFree plan availableAI
  • AI Integration
  • Self-updating Knowledge Management
  • Intelligent User Assistance

Read the Docs

DocumentationFrom $50 / monthly
  • Build and versioning automation
  • Pull request previews
  • Docs-as-code workflow support

Beautiful, personalized, interactive docs

DocumentationFree plan available
  • Interactive Documentation
  • Versioning & Access Control
  • Customizable Pages & Theming

High-Quality, Interactive API Docs

DocumentationFree plan available
  • Docs on Autopilot
  • Collaboration
  • Branding & Customization

Frequently Asked Questions

What is Liam ERD?

Liam ERD is a Documentation tool: ER Diagrams, Reinvented for Simplicity. It is open source. Key features include Interactive Diagram Viewer, Collaborative Sharing, CI/CD Documentation and Multi-Format Support.

Are there free alternatives to Liam ERD?

Yes. GitBook, Mintlify, Readme and Theneo have a free plan.

Is there another open-source alternative to Liam ERD?

Yes. Liam ERD is open source, and so is Markdoc.

Which Liam ERD alternatives are paid-only?

Bump: From $50 / month. Read the Docs: From $50 / monthly.