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What’s the difference between web design and web development?

Short answer

Web design decides how a site looks, reads and guides visitors to act. Web development builds the code, CMS, forms and integrations that make it work. Design owns the visitor's experience, and development owns the working product. A site needs both. A beautiful design with broken forms loses leads, and so does solid code nobody can use.

In this answer
  1. 01Who does what
  2. 02Where the two overlap
  3. 03What to put in a proposal
  4. 04How we work

Who does what

Design vs development
Web design
  • Page structure and navigation
  • Layouts for phone and desktop
  • Type, color and imagery
  • Where calls to action go
Web development
  • Code, templates and the CMS
  • Forms, booking and payments
  • CRM and analytics integrations
  • Speed, security and hosting

Think of a house. Design is the floor plan and finishes. Development is the framing, plumbing and wiring.

Where the two overlap

The line blurs in practice. Front-end developers handle spacing, responsive layouts and animation. Many designers know HTML and CSS. Speed belongs to both. A designer who specifies huge background videos creates a slow page that no developer can fully rescue.

User experience spans both roles. Nielsen Norman Group defines it as everything about a person's interaction with a company and its services, not just the screen.

Examples from local business sites

A dental site needs a booking flow that feels simple. That is design. It also needs a secure form, spam protection and a link to the scheduling system. That is development.

A law firm needs page layouts that build confidence. That is design. It needs fast pages, reliable forms and call tracking. That is development.

What to put in a proposal

Ask for two lists in writing.

  1. The pages and visitor actions the design will support.
  2. The CMS, integrations, speed targets and support the build includes.

Vague proposals often split these between vendors, and problems fall through the gap.

How we work

At Rathly, design and development sit on one team. Antony leads both, so the design we show you is the site we can build, at full speed. Read whether you need coding skills to run the site afterward.

Our web design projects cover both sides in one contract.

Keep reading

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