Compare the Top Free Software Documentation Tools as of May 2025

What are Free Software Documentation Tools?

Software documentation tools are designed to help developers and technical writers create, manage, and share documentation related to software applications. These tools facilitate the writing of user guides, API references, installation instructions, and other types of technical content. They often include features like version control, templates, collaborative editing, and integration with code repositories to streamline the documentation process. Some popular tools offer support for various output formats, such as HTML, PDF, and Markdown, making it easier to distribute documentation to different audiences. By using these tools, teams can ensure that their documentation remains accurate, up-to-date, and accessible throughout the software development lifecycle. Compare and read user reviews of the best Free Software Documentation tools currently available using the table below. This list is updated regularly.

  • 1
    Docsie

    Docsie

    Docsie

    Docsie is an award-winning digital documentation and knowledge management platform based in Ontario, Canada. You can access Docsie through a SaaS web application to create & edit documentation from any location. Then, you can publish content to a dynamic knowledge portal that users can access whenever they need information! Docsie offers powerful business-grade features to write & manage product documentation: - Docsie Pilot onboarding - Custom portal design & optional training for paid plans - Internal & external portal for employees & end-users - Workspaces - Knowledge base analytics & user feedback collection - Free custom domain - Markdown import & export - WYSIWYG Editor - iFrame embed - SwaggerAPI import - Snippet, fragment, document & topic templates - Help center & in-app help interface - Guided tour builder - Version & language management - Webhooks - AI translation & content generation - Project management - RBAC/JWT/SSO for security
    Starting Price: $39 per month (annual)
  • 2
    Nuclino

    Nuclino

    Nuclino

    Nuclino works like a collective brain, helping teams bring all their knowledge, docs, and projects together in one place. It's a modern, simple, and blazingly fast way to collaborate, without the chaos of files and folders, context switching, or silos. Nuclino is trusted by over 12,000 teams and companies across the world.
    Starting Price: $5.00/month/user
  • 3
    Bit.ai

    Bit.ai

    Bit Tech Labs

    The World's Most Powerful Workplace and Document Collaboration Platform. Built for teams and individuals to create, collaborate, and organize all your work in one place from anywhere in the world. Create fast dynamic notes, documents, wikis, knowledge bases, projects, client deliverables, training guides and client portals, while integrating across the apps you work with. Organize all your work in one place. Use Bit for smart notes, research, freelance work, client deliverables, classwork & more in one beautiful place. Work with your team, clients, partners or students, regardless of where they are located and collaborate on projects together in real-time. Utilize guest access to bring clients, partners and contractors into your world. Bit scales across your entire organization, regardless of whether everyone is in one location or distributed across the globe. Keep all your company knowledge across departments, teams, projects, and clients organized in one central hub.
    Starting Price: $8 per user per month
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