Best Free Software Documentation Tools of 2025

Interfacing's Digital Twin Organization software offers transparency and governance to improve quality, efficiency, and ensure regulatory compliance. A single platform allows you to map, analyze, and automate your processes, manage regulatory compliance, and assess risks. Interfacing's digital twin solution (Enterprise Process Center-EPC) is an enterprise management platform that allows companies to digitally transform their processes. It helps them streamline operations, improve productivity, and make things more efficient. Interfacing's digital platform - Rapid Application Development Tools (RAD) Tools, with its Low Code Development methodology, will optimize your technical resources and maximize transparency to allow for continuous improvement. Discover how our Low-Code Rapid Application Development module gives you all the tools needed to create and deploy custom, scalable, secure, mobile-ready applications in days vs. months!

FlowShare runs in the background, records every step you take in any software, then delivers a detailed guide on how to complete your task. You can focus on what really matters instead of wasting time with documentation. And get your staff trained in on complex tasks and processes in hours, instead of days or weeks. You get easy to distribute accurate information with all of your guides looking great - no matter who creates them! FlowShare AI-Powered assistant provides 24/7 instant help, ready to guide your end-users through troubleshooting and problem-solving independently. FlowShare Portal provides a Central Knwoledge Hub, making the solutions and step-by-step guides readily accessible, fostering an environment of continuous learning and collaboration.

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: - Pilot onboarding service w/ portal design support and workforce training - Internal & external knowledge base options - Create multiple workspaces - Portal analytics & feedback with Docsie Vocally - Custom domain on free tier - Markdown compatible - Docsie Editor with rich formatting and content embeds - iFrame - SwaggerAPI import - Built-in and custom document templates - Help center deployment & in-app help sidebar - Share guided tours & create with our builder Chrome extension - Manage multiple versions, languages, and view change history - Webhook support in Mattermost, Slack, and more - Ghost AI language translation (available) & generative AI (in-progress) - Project management with kanban and task creation - RBAC/JWT/SSO for security, user management, and data protection

GitHub stands as the leading platform for developers globally, renowned for its security, scalability, and community appreciation. By joining the ranks of millions of developers and businesses, you can contribute to the software that drives the world forward. Collaborate within the most inventive communities, all while utilizing our top-tier tools, support, and services. If you're overseeing various contributors, take advantage of our free GitHub Team for Open Source option. Additionally, GitHub Sponsors is available to assist in financing your projects. We're thrilled to announce the return of The Pack, where we’ve teamed up to provide students and educators with complimentary access to premier developer tools throughout the academic year and beyond. Furthermore, if you work for a recognized nonprofit, association, or a 501(c)(3), we offer a discounted Organization account to support your mission. With these offerings, GitHub continues to empower diverse users in their software development journeys.

ProProfs Knowledge Base serves as a powerful knowledge management tool designed to create easily searchable online FAQs, enhancing customer service and minimizing ticket volumes. This platform centralizes access to a wide array of files, documents, and instructional articles, allowing users to reach them from various devices and platforms. Organizations can seamlessly disseminate crucial information to train their sales, customer service, and support personnel effectively. Furthermore, it acts as a valuable resource for onboarding new employees, familiarizing them with company protocols and procedures. By significantly boosting productivity, ProProfs Knowledge Base enables both employees and customers to swiftly locate the information they seek, regardless of time or location. Additionally, this software alleviates the repetitive task of answering frequently asked questions, streamlining communication and efficiency within the organization. Ultimately, it enhances overall operational effectiveness by ensuring that knowledge is readily available when needed.

Tettra is an internal knowledge database that uses smart workflows to answer repetitive questions. Tettra allows you to centrally document important policies, processes, and procedures. This makes it easier to onboard new colleagues and reduces the time spent answering questions. Cloud apps consume most of our time. Software continues to consume the world. As a result, we continue to create more information and use more tools. There are downsides to all this information. This fragmentation of tools makes it difficult to share context and agree upon the best decisions, especially cross-functionally. Your best employees should not be asked the same repetitive questions when growing your team. Everyone needs to have access to the same information and principles in order for them all move quickly. Your internal knowledge base is only as good as the contributions of everyone. Tettra makes it easy to share knowledge by referencing content from other systems.

Nuclino acts as a collective brain and helps teams bring together all their knowledge, documents, and projects in one place. It's simple, modern, and fast. Over 12,000 companies and teams around the globe trust Nuclino.

Xano offers a fully-managed, scaleable infrastructure that powers your backend. You can also quickly create the business logic that powers your backend with Xano without writing a single line or use one our pre-made templates to launch quickly and without compromising security or scale. You can quickly create custom API endpoints with just one line of code. Our out-of-the box CRUD operations, Marketplace extensions and templates will accelerate your time to market. Your API is "ready-to use" so you can connect to any frontend immediately and concentrate on your business logic. Swagger automatically documents everything so that you can connect to any frontend easily. Xano uses PostgreSQL, which offers the flexibility of a relational and the Big data needs that a NoSQL solution. You can add features to your backend with just a few clicks. Or, you can use pre-made templates and extensions to jumpstart the project.

Dubble monitors your work and converts it into written guides, tutorials and videos. Dubble instantly creates tutorials, step-by-step guides and onboarding resources to help you with your processes. Once you're done, press record. The docs will be ready for you. You can quickly edit the descriptions, markup, redact, and edit screenshots. Or, you can pick entirely new screenshots from a video record. You can share your guide with just one click. You can quickly record and send your customers, clients, or mum a Dubble. Copy and paste your guides wherever you have knowledge - Notion, Google Docs or Trainual - anywhere rich content or markdown works are supported by Dubble

Process Street is a modern process management platform for teams. We help teams share their core processes, then transform them into powerful no-code workflows.

Focus your efforts on creating exceptional documentation instead of getting bogged down with the tools needed to manage it. Read the Docs streamlines the documentation process by taking care of building, versioning, and hosting your documentation automatically. We offer free and permanent hosting for your documentation with no hidden fees. Our platform supports over 100,000 open source projects in sharing their documentation, complete with options for custom domains and themes. Each time you update your code in popular version control systems like GitHub, BitBucket, or GitLab, we automatically build your documentation, ensuring that it remains synchronized with your code. While we prepare your documentation for the web, you can also access it as PDFs, single-page HTML, and formats suitable for eReaders. There’s no need for complex configurations, making the process seamless. Additionally, we can manage and host various versions of your documentation effortlessly, allowing you to maintain both 1.0 and 2.0 versions simply by using separate branches or tags in your version control setup. With Read the Docs, you can concentrate on content while we handle the technical aspects of documentation management.

WackoWiki - Small, lightweight, handy, expandable, multilingual Wiki-engine. It is designed for speed and extensibility. WackoWiki is completely free and open source, and it is BSD licensed. It features a WYTIWYG editor, section edit, thumbnail creation and easy installation. There are many localizations. Links can be CamelCase, or you can create them using an intuitive two-character markup. Compatible with PHP 8.0-8.4 and MariaDB/MySQL Correction of punctual typos and spec. characters. Access control via per-page access control list. Automatic table of contents generation. Page monitoring and email notification of changes/comments. Powerful diff between revisions.

Create a centralized repository of styles, tokens, guidelines, code, components, and patterns, integrated and synced between the tools you already use. zeroheight makes maintaining consistency across different products easier and reduces the time and effort needed to stand up new brands and products confidently. We offer features that suit teams from startup to enterprise, from governance to analytics to automation.

Stop struggling with outdated documentation by seamlessly incorporating it into your CI/CD processes, allowing for quicker scaling. Connect your documentation to pertinent code snippets and designate ownership to ensure accountability. Monitor for instances when documentation becomes outdated due to code modifications or shifts in user interaction. Set up alerts to receive notifications when documentation needs upkeep. Whether you utilize internal platforms like Notion or external sites such as ReadMe, we offer integrations to facilitate this process. Stay informed when documentation is outdated and efficiently resolve alerts once updates have been made. Analyze user engagement with your documentation to enhance its clarity and overall readability. Additionally, improve your code's readability without overwhelming your codebase with excessive comments. Assign documentation ownership to the appropriate individuals responsible for the code, or enable automatic detection for efficiency. This holistic approach not only streamlines your workflow but also fosters a culture of continuous improvement within your team.

Bump.sh is a platform that helps you create a single source of truth. It documents and catalogs all APIs. Now, teams have a single point of reference for building and consuming APIs with OpenAPI or Swagger. You can now get the API documentation you want, easy, fast, and elegant. You only need to deploy your API definitions and you will get the best-of-breed developer documentation. Integrate with Git. Every time your API code changes Bump detects the change and notifies your team. They can then access the diff directly from their documentation. Bump Hubs allows you to quickly create API catalogs and build powerful developer portals. We can integrate into any existing development process. We support both message-driven and RESTful APIs. Automate your GitHub deployments to ensure that you stay on top of everything. You can validate or deploy your documentation at any stage of your CI workflow. All of your ecosystem on one page. API changes are detected automatically.

Docuo is a platform for tool documentation. It is a SaaS-based platform that allows you to create a great knowledge base for internal and external users (public or closed knowledge bases). It can elevate your team's capability with one powerful document tool. Eliminate fragmented workflows, consolidate tasks, and boost efficiency. Docuo has many benefits: --AI-Assisted Writer: Docuo Copilot automates the documentation writing process so that developers can concentrate on coding and not writing. Cross-Team Collaboration: Facilitate seamless collaboration between your developers and technical writers to create stellar documentation. --Easy to use Editor: Intuitively insert images, videos, codes and more. Content can be rearranged easily with blocks that are customizable. --Hassle Free Doc Management: Centralize documents for all products to enable effortless version control. Docuo optimizes sites for responsiveness, mobile friendliness, and SEO

Introducing the ultimate platform for workplace and document collaboration that empowers both teams and individuals to create, collaborate, and manage their work seamlessly from any corner of the globe. This tool allows users to swiftly generate versatile notes, documents, wikis, knowledge bases, project plans, client outputs, training manuals, and client portals, all while ensuring smooth integration with the applications you already use. Centralize your work efficiently in one location, utilizing Bit for smart notes, research endeavors, freelance tasks, client outputs, academic work, and much more, all presented in an aesthetically pleasing format. Collaborate with team members, clients, partners, or students, no matter their geographical location, and engage in real-time project collaboration. With guest access features, you can easily invite clients, partners, and contractors into your workspace to enhance productivity. Bit is designed to scale with your organization, whether your team is centralized or spread out internationally. Maintain a well-organized repository of company knowledge that spans across various departments, teams, projects, and clients, all housed within a single, easily accessible hub for ultimate efficiency and collaboration. This all-encompassing platform not only boosts productivity but also fosters a cohesive working environment, essential for modern teams.

Create documentation without the need for technical jargon and enjoy seamless hosting. Write in a familiar style that feels just like using a word processor! There’s no need to worry about complex syntax if you prefer simplicity. Publish your work instantly with just one click. Organize your content into chapters, sections, and pages with ease, allowing you to focus fully on your product. You don’t need any coding skills, making it possible for anyone to contribute to the writing process! Our documentation software offers hassle-free hosting solutions. You can either use your own custom domain or set one up through our platform. Select a theme, upload your logo, and tailor everything to align with your brand or website. Collaborate with your team by allowing them to assist in the documentation process. Control access by assigning roles and user privileges to ensure security. You can easily make your documentation private and password-protected for personal or internal use. Publish with confidence, knowing that your previous work is secure and has been backed up. You can download or restore your documents at any time, ensuring peace of mind. This documentation software is designed to simplify the process of creating and managing your documents. Furthermore, it empowers users to enhance their workflow while fostering collaboration across teams.

HelpNDoc offers a comprehensive set of features designed for crafting thorough help files and documentation. The platform encompasses everything from the table of contents to the final layout of the documentation, ensuring a complete solution. Its user interface is thoughtfully designed for clarity and efficiency, utilizing the familiar ribbon layout first established by Microsoft Office, while contextual editing tools, like those for images and tables, appear only when relevant, enhancing usability. With essential tools embedded within the software, including a table of contents editor, a WYSIWYG topic editor, a keywords editor, and a library, HelpNDoc streamlines the process of creating outstanding documentation. Additionally, the inclusion of a robust word processor allows users to feel instantly comfortable as they navigate through their writing tasks, making the overall experience even more enjoyable and productive. This makes HelpNDoc not just a tool, but a supportive environment for anyone looking to produce high-quality documentation.

HelpSmith is a comprehensive help authoring tool that enables users to generate CHM HTML Help files, Web Help systems, printed manuals, Adobe PDF documents, Microsoft Word documents, and ePub eBooks from one source. For those in search of a solution to create a CHM help file, an online Web Help system, or a PDF manual, HelpSmith offers an extensive array of features, including a robust word processor for drafting help topics and a built-in screenshot utility that can automatically capture help for dialog windows. With HelpSmith, you can effortlessly produce a CHM help file, a responsive Web Help system that works seamlessly on both desktop and mobile devices, a printed manual, a PDF document, an ePub eBook, and a Microsoft Word document all from a single source project. Additionally, the included word processor has a spell checker and supports dictionaries in various languages, making it easier to write clear and accurate content. This versatility makes HelpSmith an ideal choice for anyone needing to create comprehensive help documentation in multiple formats.

Avoid being hampered by onboarding challenges, knowledge silos, or context switching by utilizing Swimm to create and modify documents that are seamlessly integrated with your code, automatically updated, and embedded in your workflow. With a language-agnostic editor and features like Smart Tokens and Snippet Studio, Swimm provides a robust foundation for contemporary documentation practices. Craft engaging, media-rich documents that are closely tied to your codebase with ease. The Auto-sync algorithm ensures your documentation remains aligned with any refactoring or structural changes, sparing you from the hassle of updating file names, function names, or implementations. Swimm actively monitors your documentation as your code changes, alerting you to any discrepancies that arise. You can conveniently access documents alongside the relevant code, maintaining your focus within your IDE. When you click a link, a new tab opens with the documentation rendered flawlessly from Markdown, ensuring a smooth and uninterrupted workflow. This streamlined approach not only enhances collaboration but also maximizes productivity, allowing teams to work more efficiently together.

Japedo analyzes source code and databases and generates documentation for the persistence layer of a Java program. The documentation is a dynamic HTML page that includes tables, diagrams and mappings. It also lists flaws and inconsistencies.

Stay updated with your documentation, minimize meetings and distractions, and reclaim hours each week. Our tool will effortlessly generate a comprehensive guide featuring well-cropped screenshots, relevant links, and helpful annotations. You can obscure any sensitive data, insert notes, sketch freely, or personalize your branding with logos and colors. With a single click, you can publish your guide across various knowledge bases, share a direct link, or export it in formats like PDF, HTML, or Markdown. As you navigate through your process, Tango takes care of the documentation for you. In fact, you can create ten how-to guides in the same amount of time it once took to produce a single one. Bid farewell to lengthy videos and extensive text blocks, as Tango transforms any procedure into an aesthetically pleasing, easily shareable guide. Document tasks across any software or website while enjoying compatibility with all your favorite tools. Emphasize key elements using arrows, rectangles, circles, or text, or let your creativity flow with the freehand pen. You can also adjust image sizes to ensure the focus is on what truly matters while eliminating unnecessary details for a streamlined presentation. This innovative approach to documentation not only saves time but also enhances the clarity of your processes.

Produce visual documentation that both your customers and team will appreciate at lightning speed. Simply click to capture using our browser extension as you navigate through your workflow, and hit stop when finished; we'll handle the rest. Each document will consistently reflect your brand and stay on point. You can record or incorporate text-to-speech voiceovers, modify steps within your workflow, obscure sensitive data, and include text, annotations, and custom branding, all as effortlessly as editing a presentation. Distributing your guide is a breeze—share it with a single click across any platform. You have the ability to share it internally or externally while managing access permissions. Instantly create a visual article enriched with video, images, and text, which can be integrated into your existing tools like Notion, Zendesk, Salesforce, and more. Provide your customers with a personalized experience through straightforward, step-by-step guides that they can easily watch and follow rather than wading through extensive documentation. Empower your entire team to swiftly produce engaging video-rich guides to effectively showcase your product. This streamlined process not only enhances productivity but also fosters a deeper connection with your audience.

Easily create, oversee, and host smart documents that dynamically answer user inquiries while boosting engagement and encouraging self-service. Quickly design impressive user manuals and allow users to access answers instantly through our advanced Q&A functionality. Generate FAQs in no time, and enable our intelligent chatbot to deliver immediate responses to frequently asked questions. Utilize the private workspace for jotting down daily notes, tasks, and additional information. Transform your documentation into an interactive experience with the Q&A feature, enhancing its depth and usability. Develop visually appealing product documentation for your users and stakeholders, and improve understanding with our innovative instant answers widget. By integrating these features, you will ensure that information is readily available and easily digestible for all users.