Structurizr
Enterprise Architecture Tools
Simon Brown's tool for diagramming and documenting software architectures using the C4 model.
Price$5 / workspace / month
Price position: below the category median.Platforms for creating and managing technical documentation and developer guides.
Enterprise Architecture Tools
Simon Brown's tool for diagramming and documenting software architectures using the C4 model.
Price$5 / workspace / month
Price position: below the category median.
Documentation Hosting
Documentation hosting platform that builds and publishes docs from Git repositories with version management.
Price$50+ / month
Starting price: above the category median.
Technical Documentation Platforms
Collaborative markdown editor for technical teams with real-time co-editing, presentations, and knowledge graph visualization.
Price$5+ / seat / month
Starting price: below the category median.
AI Documentation Generators
Swimm is an AI-powered code documentation platform that automatically generates and maintains internal documentation that stays coupled to the codebase as it evolves.
Price$18+ / user / month
Starting price: at the category median.Documentation Tools
Popular Material design theme for the MkDocs documentation generator used by thousands of open-source projects.
Price$25+ / month
Starting price: above the category median.
Developer Portal Platforms
Bump.sh turns OpenAPI specifications into polished API documentation portals with changelogs, previews, and version-aware publishing workflows.
Technical Documentation Platforms
Documentation framework providing a systematic approach to creating technical documentation with four quadrants.

Documentation Tools
Documentation generator powered by Markdown with custom components, search, and beautiful default theme.

AI Documentation Generators
AI platform for generating and maintaining documentation automatically from code.

Documentation Tools
Documentation framework powered by Nuxt for building beautiful documentation sites with Vue components.
Documentation Tools
Interactive tutorial and documentation tool.
Documentation Tools
Community-driven documentation repository with cheat sheets for 56+ programming languages and tools.

Technical Writing
Vale is an open-source prose linter that enforces writing style guides, detecting issues in documentation, README files, and technical content against configurable rules.

Aviation Maintenance Software
Ultramain provides electronic technical logbook and MRO software for airlines and MROs with paperless maintenance documentation.
PriceContact sales

Technical Documentation Platforms
GitBook is a modern documentation platform for technical teams providing collaborative editing, Git sync, API docs, and customizable published documentation.
Documentation Tools
Command-line tool to create books with Markdown used extensively by the Rust community.
Developer Documentation
Documentation tool powered by Gatsby for creating MDX-based component documentation with live code editing.
Technical Documentation Platforms
Open-source documentation website generator by Meta with versioning, translations, and search optimized for technical project documentation.