Best Self-hosted Content & Publishing tools in 2026

Open-source flat-file CMS for PHP that uses Markdown, Twig templates and YAML configs with a package manager for fast, flexible sites.

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WordPress.com+13

Apache Answer is an open-source Q&A platform for community forums, help centers, and internal knowledge sharing with tagging, voting, and a plugin system.

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Stack Overflow+5

Open-source eCommerce platform for B2C and B2B with a modular architecture, headless APIs, and support for multi-store, multi-currency, and extensibility via extensions.

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Shopify+10

Git-backed wiki engine that supports multiple markup formats, an integrated editor, and features like diagrams, math rendering, citations, and RSS feeds.

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Atlassian Confluence+13

Modular, API-first ecommerce platform (Magento 2) for building customizable B2C and B2B storefronts with extensibility and rich commerce features.

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Adobe Commerce (Magento Commerce)+6

WooCommerce is an open-source ecommerce platform for WordPress, enabling customizable online stores with products, checkout, payments, shipping, taxes, and extensions.

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Wix eCommerce+5

KeystoneJS is an open-source headless CMS and application framework for Node.js that uses TypeScript, Prisma, GraphQL and React to provide customizable schemas, an Admin...

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KeystoneJS Cloud+19

Open-source TypeScript eCommerce platform for building customizable online stores with React and GraphQL, including catalog, checkout, orders, and an admin dashboard.

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WooCommerce+6

Leantime is an open-source, PHP-based project management system combining strategy, planning and execution with Kanban, Gantt, dashboards, wikis, time tracking and AI-ass...

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Asana+19

TiddlyWiki is a self-contained, highly customizable personal wiki that runs in the browser or on Node.js, enabling notes, knowledge bases, and documentation in one file.

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Notion+19

Headless, API-first commerce platform built with TypeScript, NestJS and GraphQL; plugin-based, multi-database support and customizable admin UI.

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Vendure Cloud+12

Open-source, web-based collaborative Markdown editor for real-time notes, diagrams, and slide presentations with revisions and access controls.

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HackMD+17

Moodle is an open-source LMS written in PHP that enables institutions and organisations to create, deliver, and assess online courses with extensible plugins and integrat...

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Canvas LMS+12

Canvas LMS is an open-source learning management system for course delivery, assignments, grading, communication, and integrations for schools and universities.

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Google Classroom+10

Open source web-based localization platform with tight Git/VCS integration, translation workflows, quality checks, and automation for continuous software localization.

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Transifex+5

Web-based interactive and collaborative notebooks for Elixir with data visualizations, integrations, reproducible workflows, and automation.

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Deepnote+9

Umbraco CMS is an open-source ASP.NET Core content management system with an editor-friendly backoffice, extensible architecture, and scalable deployment options.

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WordPress.com+13

WriteFreely is a clean, Markdown-based publishing platform for creating minimalist blogs and communities, with ActivityPub federation and low-resource Go deployment.

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Micro.blog+10

Joomla! is an open-source PHP CMS for building and managing websites with templates, extensions, multilingual support, and granular user permissions.

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WordPress.com+10

DokuWiki is a lightweight, file-based wiki engine with ACL, versioning, and a rich plugin/template ecosystem for documentation and knowledge bases.

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Atlassian Confluence+14

Self-hosted, browser-based personal knowledge management platform with Markdown pages, wiki-style links, tasks, queries, and Lua scripting for automation.

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Notion+19

Open-source full-stack CMS built with Node.js and MongoDB, featuring in-context visual editing and headless APIs for building modern websites and content apps.

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Contentful+19

Open-source, local-first Slack and Notion alternative combining team chat, rich docs, databases, and file management with offline-first sync and self-hosting.

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Notion+19

Self-hosted photo gallery for organizations and individuals; supports large libraries, albums, plugins, themes, permissions and a developer API.

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Piwigo Cloud+19

Pimcore is an open core data and experience management platform combining PIM/MDM, DAM, CMS/DXP, CDP and digital commerce with extensible APIs and modeling tools.

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Acquia DAM (Widen)+19

Open-source Laravel e-commerce platform providing headless commerce capabilities, extensible models, and an admin hub for managing products, orders, and storefronts.

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Shopify+6

Microweber is a drag-and-drop CMS and website builder for creating pages, blogs, and online stores with live editing, modules, and template-based design.

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Wix+19

Minimalistic document management and archiving platform for long-term storage, full-text search, tagging, and automated ingestion via email or folders.

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M-Files+11

MIT-licensed core of Shopware 6: an API-first, Symfony-based commerce platform with Vue storefront, visual page builder, extensibility and multi-channel support.

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Shopify+8

Raneto is an open-source, file-based Markdown knowledge base for Node.js with web editing, full-text search, theming, and optional login protection—no database required.

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GitBook+13