I'm Andrew Walker, a freelance full stack web developer with over a decade of experience building web applications.

I'm available for any website or web app development and have a particular interest in tech for good. Take a look at the work I've done in the past, or get in touch and let's see how we can work together.

Portfolio (freelance)

Portfolio (employed)

Portfolio (other projects)


A tool for building SVG filters. SVG Filters are used to add special effects to SVG graphics. This playground lets you compose various SVG filters together and helps you understand how these filters work.


Svelte / SvelteKit Tailwind CSS


A Python library for generating image and video heat maps. Built whilst working at Lumen Research to visualise the results of eye tracking studies.



What the Press Say

A discontinued Twitter bot that compared how UK press covers breaking news online. Periodically grabbed news from BBC breaking news, found the closest story for each publisher, and made a collage with the results.



Community detection

My masters project at the University of Birmingham. A tool for visualising community structures (clusters) in graphs.



Get in touch

You can send me an email at [email protected].

Or reach me on LinkedIn.