A lot of persons have asked of the different between a web designer and a web developer. Below is a clear dinstinction.

[size=20pt]Web Designer[/size]
A Web Designer should have an eye for clean and artful design, possess superior user interface design skills and be able to translate high-level requirements into interaction flows and artifacts, and transform them into beautiful, intuitive, and functional designs.​

Responsibilities
>> Execute all visual design stages from concept to final hand-off to engineering
>> Conceptualize original ideas that bring simplicity and user friendliness to complex design roadblocks
>> Create wireframes, storyboards, user flows, process flows and site maps to effectively communicate interaction and design ideas
>> Present and defend designs and key milestone deliverables to peers and executive level stakeholders
>> Establish and promote design guidelines, best practices and standards

Requirements
>> Proven Web Design experience
>> Demonstrable graphic design skills with a strong portfolio
>> Solid experience in creating wireframes, storyboards, user flows, process flows and site maps
>> Proficiency in Photoshop, Illustrator, or other visual design and wire-framing tools
>> Proficiency in HTML, CSS, and JavaScript for rapid prototyping
>> Excellent visual design skills with sensitivity to user-system interaction
>> Ability to solve problems creatively and effectively
>> Up-to-date with the latest Web trends, techniques, and technologies
>> BS/MS in Human-Computer Interaction, Interaction Design, or a Visual Arts subject an option
>> Experience working in an Agile/Scrum development process

[size=20pt]Web Developer[/size]
A Web Developer is responsible for the coding, innovative design and layout of website. He will build website from concept all the way to completion from the bottom up, fashioning everything from the home page to site layout and function.

Responsibilities
>> Write well designed, testable, efficient code by using best software development practices
>> Create website layout/user interface by using standard HTML/CSS practices
>> Integrate data from various back-end services and databases
>> Gather and refine specifications and requirements based on technical needs
>> Create and maintain software documentation
>> Be responsibile for maintaining, expanding, and scaling website
>> Stay plugged into emerging technologies/industry trends and apply them into operations and activities
>> Cooperate with web designers to match visual design intent

Requirements
>> Proven working experience in web programming
>> Top-notch programming skills and in-depth knowledge of modern HTML/CSS
>> Familiarity with at least one of the following programming languages: PHP, ASP.NET, Javascript or Ruby on Rails
>> A solid understanding of how web applications work including security, session management, and best development practices
>> Adequate knowledge of relational database systems, Object Oriented Programming and web application development
>> Hands-on experience with network diagnostics, network analytics tools
>> Basic knowledge of Search Engine Optimisation process
>> Aggressive problem diagnosis and creative problem solving skills
>> Strong organisational skills to juggle multiple tasks within the constraints of timelines and budgets with business acumen
>> Ability to work and thrive in a fast-paced environment, learn rapidly and master diverse web technologies and techniques.
>> BS in computer science or a related field optional

It is instructive to note that some persons are both a designer and a developer.