Callum Locke

Full stack web developer and open source contributor. This page shows selected projects from before 2018. I'm now now contracting as Technical Lead at Trainline.com. Contact for availability and references.

Visual journalism

FT.com stories

Data visualisations and interactive news stories made while working as a Senior Developer at the Financial Times. Created in collaboration with journalists and designers, and some with third parties including Chatham House and the IMF.

See more at ft.com/callum-locke.

Browser extension

JSON Formatter

Developer tool with 600,000 active users.