Free-tier documentation

JetBrains Datalore

JetBrains Datalore is a collaborative data science platform for working with Jupyter notebooks in the cloud or on-premises. It supports Python notebooks and also lists SQL, R, Scala, and Kotlin notebook support, along with notebook export, an API, and on-the-fly environment customization.

Savannah

Savannah is a free software hosting forge for GNU and non-GNU projects. It provides project registration and hosting for source code, issue tracking, support requests, tasks, patches, mailing lists, and project statistics.

Gradio

Gradio is a Python library for building web interfaces around machine learning models and other Python functions. It provides high-level components such as textboxes, images, audio, plots, chatbots, d...

GitHub Pages

GitHub Pages is a static website hosting service for content stored in a GitHub repository. A site is published by editing files in the repository and pushing commits; GitHub then serves the generated pages from the repository source.

Bump.sh

Bump.sh is an API documentation platform that publishes documentation portals from OpenAPI and AsyncAPI documents. It supports API reference pages, an API Explorer, automatic changelogs, versioning, governance, and documentation hubs for organizing multiple APIs.

Slite

Slite is an AI-powered knowledge base for team documentation and internal search. It provides a collaborative editor, document verification, recurring docs, templates, integrations, and an Ask feature...

Stoplight

Stoplight is an API design and documentation platform for creating OpenAPI and JSON Schema definitions, generating interactive documentation, and running mock servers from the same workspace. It supports code-based editing, schema reuse, design validation, Git sync, and OpenAPI export.

Apidog

Apidog is an all-in-one API platform for designing OpenAPI specifications, debugging requests against those specs, running automated API tests, publishing interactive documentation, and generating moc...

ToDiagram

ToDiagram is a data visualization and editing platform that turns structured data into interactive diagrams. It supports formats such as JSON, YAML, XML, CSV, JSON Schema, and Mermaid, and lets users inspect, edit, and export diagrams in a visual workspace.

Mermaid Chart

Mermaid Chart is a diagramming application that turns text, Markdown-style syntax, or natural-language prompts into rendered diagrams. It supports flowcharts, sequence diagrams, Gantt charts, ER diagr...

Mintlify

Mintlify is an intelligent knowledge platform for creating and maintaining documentation, knowledge bases, and help centers. It helps teams publish modern, AI-ready content that serves both human readers and AI systems.

ReadMe

ReadMe is a documentation platform for building and publishing interactive API docs. It combines a WYSIWYG editor with Git-backed workflows so teams can keep documentation synchronized as they write, review, and ship APIs.

Confluence is Atlassian’s AI-powered workspace for knowledge and collaboration. It gives teams a central place to create, organize, and share documentation, project information, and team knowledge in one connected environment.

Ilograph

Ilograph is an interactive diagramming platform for documenting and explaining system architecture with depth and clarity. It helps teams create zoomable, model-based diagrams that can move from high-level overviews to detailed component interactions in a single visual system.