What is WordPress? It is a free, open-source content management system (CMS) that lets you build and manage a website without writing code. Today WordPress runs roughly 43% of all websites and more than 60% of sites that use a known CMS, which makes it the most widely used website platform in the world (W3Techs).
People use it for personal blogs, business sites, online stores, portfolios, news magazines, membership sites and online courses. You install the software, pick a theme for the design, add plugins for extra features, and publish content from an easy dashboard.
This guide explains what WordPress is, how it works behind the scenes, the difference between WordPress.org and WordPress.com, what it costs, its pros and cons, and exactly how to get started. If you are brand new, read it top to bottom; if you just need one answer, use the table of contents.
Quick Answer: Key Takeaways
- WordPress is a free CMS built with PHP and a MySQL/MariaDB database, released in 2003 under the GPL license.
- WordPress.org is the free self-hosted software; WordPress.com is a hosted service run by Automattic.
- The software is free, but a live site needs a domain and hosting.
- Themes control design, plugins add features, and the block editor lets you build pages visually.
- You do not need to code, but you do need to keep WordPress, themes and plugins updated for security.
What Is WordPress?
WordPress is an open-source CMS: software that stores your content in a database and turns it into web pages automatically. Instead of hand-coding every page in HTML, you write a post or build a page in a visual editor and WordPress handles the rest. It is written in PHP and uses MySQL or MariaDB to store content, and it is released under the GNU General Public License (GPL), so anyone can use, modify and share it for free.
Two things define WordPress: themes (the design layer) and plugins (the feature layer). The official directories alone hold tens of thousands of free options at WordPress.org/themes and WordPress.org/plugins, and thousands more premium ones are sold by independent developers.
Related reading: if you want to sell products, see our guide to what WooCommerce is, the free plugin that turns WordPress into a store.
A Brief History of WordPress
WordPress began in 2003 as a small fork of an older blogging tool called b2/cafelog. Its first release came from Matt Mullenweg and Mike Little. It started as a pure blogging platform, then grew into a full CMS as it added static pages, themes, plugins, custom post types and multisite networks.
- 2003: first public release as a blogging tool.
- 2005: pages and a theme system make it usable for ordinary websites.
- 2010: WordPress 3.0 merges multisite into core; see our guide to a WordPress multisite network.
- 2018: WordPress 5.0 introduces the Gutenberg block editor.
- 2022: WordPress 5.9 brings full site editing, so you can design headers, footers and templates with blocks.
Development is led by a worldwide community of volunteers and sponsored contributors, and the project is stewarded through WordPress.org. Automattic, the company co-founded by Mullenweg, runs the hosted WordPress.com service, but the open-source software itself is not owned by a single company.
How Does WordPress Work?
Every WordPress site has four moving parts that work together in about a second:
- A visitor types your address into a browser, which sends a request to your web host.
- The web server (Apache, Nginx or LiteSpeed) runs WordPress. Not sure which server is faster? Read Nginx vs LiteSpeed.
- WordPress uses PHP to fetch your content (posts, settings, menus) from the MySQL or MariaDB database.
- Your active theme’s templates combine that content with the design, and plugins add any extra features.
- The finished HTML page is sent to the visitor’s browser.
Because content is separated from design, you can change your whole look without rewriting a single post. If you want to try that, follow our guides on how to change a WordPress theme safely or install a WordPress theme.
Server requirements
WordPress runs on almost any modern host. The project recommends current, supported versions of PHP and MySQL or MariaDB, plus HTTPS support. Exact version numbers change over time, so always check the official WordPress requirements page before choosing a host. Most good hosts also include a free SSL certificate, and if yours does not, see how to install an SSL certificate.
WordPress.org vs WordPress.com
This is the most common point of confusion for beginners. They share the same software foundation but are very different products.
WordPress.org is the free software you download and install on your own hosting. WordPress.com is a commercial hosting service built on WordPress and operated by Automattic.
| Feature | WordPress.org (self-hosted) | WordPress.com (hosted) |
|---|---|---|
| Software cost | Free | Free and paid plans |
| Hosting | You choose and pay for it | Included |
| Themes and plugins | Install anything, from any source | Depends on the plan you buy |
| Custom code access | Full access to files and database | Restricted on lower plans |
| Monetization | Run any ads, sell anything | Rules and plan limits apply |
| Maintenance | You (or your host) handle updates and backups | Handled for you |
| Best for | Businesses, stores, developers, serious blogs | Simple blogs and small personal sites |
Which should you choose? For a business site, store or any site you plan to grow, choose self-hosted WordPress.org. Plans and limits on WordPress.com change from time to time, so check their current pricing page before you decide. The rest of this guide focuses on WordPress.org.
Key Features of WordPress
- Easy content editing: the block editor (Gutenberg) lets you build posts and pages with drag-and-drop blocks.
- Themes: change your entire design in a few clicks. Browse our picks of free WordPress themes or the fastest WordPress themes.
- Plugins: add contact forms, SEO tools, caching, security, e-commerce and more. See our list of must-have WordPress plugins.
- SEO-friendly structure: clean permalinks, editable titles and meta descriptions, XML sitemaps (via plugins) and fast, lightweight themes. Start with our beginner’s guide to WordPress on-page SEO.
- User roles: Administrator, Editor, Author, Contributor and Subscriber, so teams can work safely together.
- Media library: upload, organize and optimize images, video, audio and documents. Learn how to serve smaller images with WebP in WordPress.
- Multilingual and multisite support: run several languages or an entire network of sites from one install.
- REST API: developers can connect WordPress to mobile apps and other software, or use it as a headless CMS. See the WordPress developer resources and our list of WordPress development frameworks.
The WordPress Dashboard Explained
After installing WordPress you manage everything at yourdomain.com/wp-admin. The left-hand menu is your control center.
| Menu item | What it does |
|---|---|
| Dashboard | Overview of your site, updates and quick drafts. |
| Posts | Time-based blog articles with categories and tags. |
| Pages | Static content such as Home, About, Services and Contact. |
| Media | Your library of images, videos and files. |
| Comments | Approve, reply to or delete visitor comments. |
| Appearance | Themes, menus, widgets and the Site Editor. See WordPress sidebars and displaying widgets. |
| Plugins | Install, activate, update and remove plugins. |
| Users | Manage accounts and roles. Locked out? Use our admin password reset guide. |
| Tools and Settings | Import/export, site health, site title, permalinks, reading and writing options. |
Posts vs pages: use posts for dated, regularly published content (news, tutorials) and pages for evergreen content that is not part of your blog feed.
Themes, Plugins and Page Builders
Themes
A theme controls layout, fonts, colors and templates. Good themes are fast, responsive and follow the official WordPress theme standards. Using a child theme protects your customizations from updates; see child theme plugins. For small tweaks you can also add custom CSS in WordPress. Looking for a trusted source? Compare WordPress theme providers.
Plugins
Plugins are like apps for your site. Popular examples include WooCommerce (e-commerce), Yoast SEO or Rank Math (SEO), Contact Form 7 (forms) and Jetpack (security and performance). Do not install too many: every extra plugin adds code that must be updated and can affect speed.
Page builders and the block editor
Besides the built-in block editor, many people use visual builders such as Elementor. See our recommended Elementor-ready themes, best Elementor addons and Gutenberg-compatible themes.
What Can You Build with WordPress?
WordPress is used by news publishers, universities, government agencies, global brands and millions of small businesses. Browse real examples in our lists of the most famous WordPress websites, best WordPress website examples and Fortune 500 companies using WordPress.
- Blogs and magazines: the original use case. See how to start your own blog.
- Business websites: services, agencies and corporate sites with corporate themes.
- Online stores: sell physical or digital products with WooCommerce and a free WooCommerce theme; see WooCommerce website examples.
- Portfolios: photographers, designers and freelancers; see best portfolio themes.
- Communities and membership sites: forums and social networks with BuddyPress themes.
- Job boards, directories and booking sites: see job portal plugins.
- Landing pages: use landing page plugins for campaigns.
- Mobile apps: explore WordPress mobile apps.
The share of the web that uses WordPress is covered in detail in our post on the percentage of websites using WordPress.
Why Is WordPress So Popular?
- It is free and open source. No license fee, no vendor lock-in, and you own your content.
- It is flexible. Blog, store, membership site or web app: the same core can do it all.
- The ecosystem is huge. Thousands of themes, plugins, developers, agencies and tutorials.
- It is beginner friendly. A visual editor and one-click installs at most hosts.
- It is built for search. Clean markup and strong SEO tooling; compare it in our post on the best platform for SEO.
- It scales. From a one-page site to high-traffic publications and stores.
- The community is active. Meetups, WordCamps and forums; read about women in WordPress and the best WordPress blogs to follow.
How Much Does WordPress Cost?
The WordPress software is free, but a live website has real costs. Prices vary widely by provider and change often, so treat these as categories rather than quotes:
| Cost | What it covers | Typical range |
|---|---|---|
| WordPress software | Core, from WordPress.org | Free |
| Domain name | Your address, e.g. yoursite.com | Roughly $10-20 per year |
| Web hosting | Where your site lives; see cloud hosting providers and fast WooCommerce hosting | From a few dollars a month (shared) to much more (managed or VPS) |
| Theme | Design; many excellent free options | Free or one-time/annual premium fee |
| Plugins | Features such as SEO, forms, backups | Free or premium licenses |
| Developer or agency (optional) | Custom work; see WordPress development agencies and the web development quote guide | Varies by project |
Pros and Cons of WordPress
Pros
- Free, open-source software you fully own
- Huge choice of themes and plugins
- Easy to learn, no code required
- Strong SEO foundation
- Scales from tiny blogs to big stores
- Large community and documentation
- Works with WooCommerce, Elementor and many page builders
Cons
- You are responsible for updates, backups and security
- Too many or poor-quality plugins can slow a site down
- Popularity makes it a target; see how to recover a hacked WordPress site
- Quality varies across themes and plugins
- Beginners can feel overwhelmed at first; see common WordPress errors
- Hosting choice strongly affects speed
WordPress vs Other Platforms
WordPress is not the only way to build a site. Here is how it compares with the most common alternatives:
| Platform | Type | Best for | Main trade-off |
|---|---|---|---|
| WordPress.org | Open-source, self-hosted CMS | Almost any site; maximum flexibility | You manage hosting and maintenance |
| Wix | Hosted website builder | Quick small sites | Less portability and flexibility |
| Shopify | Hosted e-commerce platform | Stores without technical work | Monthly fees and platform limits; see Shopify competitors |
| Joomla | Open-source CMS | Complex structured content | Smaller ecosystem and steeper curve |
| Drupal | Open-source CMS | Large, complex developer-led sites | Needs more technical skill |
| Squarespace | Hosted website builder | Design-led small sites | Limited extensibility |
Deciding between store platforms? Read our e-commerce platforms comparison.
How to Get Started with WordPress
Step 1: Pick a domain and hosting
Choose a short, memorable domain and a reliable host with good uptime, daily backups, free SSL and one-click WordPress install. Beginners often start with shared or managed WordPress hosting and upgrade later.
Step 2: Install WordPress
Most hosts install WordPress for you from the control panel. You can also install it manually from WordPress.org. To practice before going live, set up a free local copy; see how to install WordPress on localhost or WordPress on Mac.
Step 3: Configure basic settings
Go to Settings > General to set your site title and tagline, and Settings > Permalinks to choose “Post name” for clean, SEO-friendly URLs.
Step 4: Choose a theme and add essential plugins
Activate a fast, lightweight theme, then add only the plugins you need: SEO, security, backups and caching. For stores, begin with essential WooCommerce plugins.
Step 5: Create pages and publish content
Create your core pages (Home, About, Services, Contact), set up your menu, then publish your first posts. Need ideas? See our content ideas for beginners. For a complete walkthrough, follow our guide to create a WordPress website.
Security, Speed and SEO Basics
- Keep everything updated: WordPress core, themes and plugins.
- Use strong passwords and two-factor authentication for all admin users, and follow our WordPress security checklist.
- Back up regularly and store copies off-site.
- Use HTTPS everywhere; see how to install an SSL certificate.
- Optimize speed: choose quality hosting, compress images, use caching and a lightweight theme; also see optimizing performance with Nginx.
- Follow SEO best practices: write helpful content, use descriptive titles, add alt text, and fix broken links. See fixing Yoast readability issues.
Frequently Asked Questions About WordPress
What is WordPress used for?
WordPress is used to build and manage websites: blogs, business sites, online stores, portfolios, membership sites, forums and online courses.
Is WordPress really free?
Yes, the WordPress.org software is free and open source. You still pay for a domain and hosting, and optionally for premium themes, plugins or services.
Is WordPress a CMS or a website builder?
It is primarily a CMS. With the block editor, Site Editor and page builders it also works like a visual website builder, but it gives you far more control and ownership than typical hosted builders.
Do I need coding skills to use WordPress?
No. You can build a complete site with themes, plugins and the visual editor. Coding in HTML, CSS and PHP only helps if you want deep customization.
What is the difference between WordPress.org and WordPress.com?
WordPress.org is the free, self-hosted software where you control hosting, themes and plugins. WordPress.com is a hosted service where the provider handles hosting and maintenance, with features depending on your plan.
Is WordPress good for SEO?
Yes. It offers clean URLs, editable metadata, mobile-friendly themes and excellent SEO plugins. Results still depend on content quality, speed and links, but the platform does not hold you back.
Is WordPress secure?
WordPress core is actively maintained and receives regular security updates. Most hacks come from outdated plugins and themes, weak passwords or poor hosting, so keep everything updated and follow security best practices.
Can I build an online store with WordPress?
Yes. Install the free WooCommerce plugin to add products, cart, checkout and payments. Learn more in what is WooCommerce.
Can I move my site away from WordPress later?
Yes. Because you own your content and database, you can export and migrate it, which is one reason many businesses choose self-hosted WordPress.
Summary
WordPress is a free, flexible and proven CMS that lets anyone build a professional website, from a simple blog to a full online store. Choose self-hosted WordPress.org for maximum control, pair it with reliable hosting, a lightweight theme and a few trusted plugins, and keep everything updated. Ready to build? Start with our step-by-step guide to creating a WordPress website, then explore our WordPress themes to give your site a professional look.
Have a question about WordPress? Leave a comment below and we will help you out.
