Web development is the process of creating websites and web applications and keeping them working afterwards. It covers everything from a five-page site for a local electrician to an online store or a customer portal: planning what is needed, writing the code, testing it, putting it live and maintaining it.
The stages of a web development project
- Planning. Deciding pages, features, content and who the site is for. Often a sitemap and a wireframe.
- Design. Visual layout, branding and user experience, usually agreed before coding begins.
- Frontend build. Turning the design into HTML, CSS and JavaScript that work across browsers and screen sizes. See frontend.
- Backend build. Databases, logins, payments and integrations, if the site needs them. See backend.
- Testing. Forms, checkout, mobile layouts, speed and accessibility.
- Launch. Connecting the domain, setting up SSL and deploying.
- Maintenance. Security updates, content changes, fixes and new features.
Ways a site gets developed
There is no single method. Hand-coding with frameworks such as React gives full control and needs a developer. Content management systems like WordPress combine ready-made themes with custom code where needed. Hosted builders such as Squarespace and Wix let owners assemble sites with no code, within the platform's limits. AI builders generate a site from a written description; We.Inc, for example, builds sites from a chat description and lets you edit them visually or in code. Most real projects mix approaches.
A realistic small-business scenario
A landscaping company needs a site with services, a gallery, a quote request form and a way to track where leads come from. The development work is modest: a few templates, a form that emails the owner and stores submissions, analytics, and local SEO basics like a correct business address. Choosing a hosted builder might cover all of it; adding automatic quotes based on garden size would push it into custom development.
How much of this you need to know
You do not need to code, but understanding the stages helps you budget and spot gaps in a quote. A proposal that skips testing or says nothing about maintenance is incomplete. Ask what happens after launch, who owns the code and accounts, and how changes will be made.
Common web development mistakes
- Building before writing the content. Designs made around placeholder text rarely survive real copy.
- Treating launch as the finish line. Unmaintained sites break as browsers, plugins and APIs change.
- Over-building. Custom features cost money to maintain; use proven tools for standard needs like bookings.
- Ignoring mobile and speed until the end. Fixing them late costs far more than planning for them.
Related terms
- Web developer: the person doing the work.
- Full stack: development across every layer.
- No-code: building sites without writing code.
- Deployment: the launch step of development.