Open Source Website Builder
Every visual website builder writes markup you never see, and that hidden output - not the drag-and-drop canvas - decides whether the finished site stays fast, accessible, and portable. The label also stretches across very different models: database-backed content systems, flat-file setups with no database at all, desktop apps that publish static files, and code-first builders aimed at developers. Open source changes the calculus because the builder generates code and stores content in formats you can read, host anywhere, and move later. You keep the convenience of editing visually without surrendering the actual files your site is made of, or tying its future to one company's admin panel.
Ghost
Open source publishing platform with built-in newsletters, memberships, and paid subscriptions
GrapesJS
Free and open source web builder framework for creating HTML templates inside CMS and other apps
WordPress
Open source CMS for creating a self-hosted website, blog, or app with a plugin API
Grav
Flat-file CMS for building and managing websites with zero installation
Webstudio
Open source visual website builder with hosting you can run yourself and full CSS property support
Webiny
Self-hosted headless CMS that runs on AWS serverless and is extended with TypeScript
Publii
Desktop static CMS for privacy-focused, SEO-optimized websites with offline editing and one-click publishing
Joomla
Free and open source content management system for building websites and online applications
Microweber
Drag-and-drop website builder and Laravel CMS for websites, online stores, and blogs
Our picks
These cover different models, so match the pick to how the site is edited and what it needs to output.
Publishing platform with built-in newsletters: Ghost A platform for blogs, newsletters, and membership sites, so one install handles articles, email distribution, and paid subscriptions without bolting on separate systems. It offers a Content API and a Handlebars theme layer, and you can self-host it with the official CLI or use the managed service.
General-purpose CMS with a large plugin ecosystem: WordPress The default for good reason: a plugin API extends the core without touching it, and import tools bring content over from other systems. It runs on ordinary PHP and MySQL hosting, so almost any host supports it, which matters when you need a specific integration to already exist.
Static sites edited from the desktop: Publii A desktop app that builds static sites with no database, so pages stay fast and have little to attack. You edit locally, even offline, then publish with one click to plain HTTPS hosting, Netlify, Amazon S3, GitHub Pages, or SFTP.
Visual builder with full CSS control: Webstudio A visual editor that exposes every CSS property and value, plus reusable styles and design tokens, so designers get precise control without writing classes. It connects to any headless CMS and can run on infrastructure you control, keeping the data and components yours.
Choosing a website builder by what it outputs
What a visual builder writes on save matters more than how the editor feels while you drag boxes around a canvas. The first split is what the tool produces. Static builders like Publii, Grav, Bludit, and Silex output plain files that are cheap to host, easy to cache, and safe by default, while database-backed systems like WordPress, Joomla, Concrete CMS, and Microweber make logins, forms, live preview, and frequent admin edits easier at the cost of a running application to secure and update. Look at where pages, media, menus, and reusable blocks actually live, because a proprietary block format is what makes a later migration painful.
Match the editor to whoever changes the site after launch. A free-form drag-and-drop canvas is quick for marketing pages but can produce inconsistent spacing and inaccessible markup without guardrails, which is why tools like Webstudio expose real CSS control and Silex exports clean HTML you can host anywhere. Ghost is less a page builder than a publishing platform, with newsletters and paid memberships built in, while GrapesJS is a framework meant to be embedded inside another app rather than run on its own. If nontechnical editors will own the site, weigh the draft, preview, and rollback workflow above raw flexibility.
Plan deployment and the exit path before you theme anything. A builder has to handle image processing, forms, redirects, SEO metadata, and sometimes ecommerce, so confirm it fits your hosting and that backups capture both files and database state. The cleanest insurance is readable output: clean HTML, editable templates, and content you can export as Markdown, HTML, or documented tables, rather than a site that only renders correctly inside one admin interface.
Related categories
Frequently asked questions
Should I pick a static or a database-backed website builder?+
Static builders like Publii, Grav, and Bludit produce plain files that are cheaper to host, easy to cache, and have little server-side code to attack. Database-backed systems like WordPress, Joomla, and Concrete CMS are better when editors need live preview, user accounts, complex forms, or frequent changes through an admin UI. The right answer depends on whether your site is mostly published content or an application.
Can a nontechnical team run the site after launch?+
Only if the builder has a real editorial layer, not just templates in a repository. Concrete CMS offers in-context point-and-click editing with version history, and WordPress and Joomla have mature admin areas. Before choosing, test the everyday edits: replacing a hero image, adding a landing page, changing navigation, and updating metadata. A developer-focused tool can be excellent technically yet frustrating for a marketing team.
Do any of these publish a static site without running a server?+
Yes. Publii is a desktop app that builds a static site with no database and publishes with one click to plain hosting, Netlify, Amazon S3, GitHub Pages, or SFTP. Grav and Bludit are flat-file systems that store content in files rather than a database, and Silex exports clean static HTML and CSS you can host anywhere. Each keeps the site fast and low-maintenance.
What is a flat-file CMS, and when does it make sense?+
A flat-file CMS stores content in files - Markdown, YAML, or JSON - instead of a database, so setup can be as simple as extracting an archive. Grav uses Twig templates and Markdown, and Bludit stores everything as JSON. It suits smaller sites, developers who want version-controlled content, and anyone who prefers no database to install, back up, or keep patched.
Can I build an online store with a website builder?+
Some include it, but ecommerce raises the bar. Microweber has drag-and-drop editing with built-in shop features, and WordPress reaches stores through plugins. Simple product blocks are fine for a small catalog, but variants, tax rules, shipping, refunds, and order emails are a different problem. If commerce is central rather than incidental, weigh a dedicated ecommerce platform instead of a general builder.
How do these tools handle SEO and page performance?+
A capable builder lets you control titles, descriptions, canonical URLs, headings, image alt text, redirects, and sitemap output without editing raw templates for every page. Performance depends on the generated markup, image handling, and caching, and visual editors can add heavy wrappers or inline styles. Test real pages with production images and any tracking scripts, not an empty demo, before you judge speed.
Will my content move cleanly if I switch builders later?+
Only if the builder stores content in a format you can read and export. Markdown, HTML, JSON, and documented database tables travel far better than opaque page blobs. Check that media paths, internal links, slugs, redirects, and metadata export with the content. Also inspect template coupling: if every page depends on builder-specific shortcodes or block IDs, the content may export but still need heavy cleanup.
What is the difference between a website builder and a headless CMS here?+
A traditional builder owns both the content and the rendered pages. A headless system stores structured content and serves it through an API to a frontend you build. Webiny is a self-hosted headless CMS that also ships a drag-and-drop page editor, and Webstudio can connect to any headless CMS. Choose headless when you need multiple frontends or full control of the output, and accept more integration work.