Building a Browser Based Code Editor - Jo Franchetti - NDC London 2025

This talk was recorded at NDC London in London, England. #ndclondon #ndcconferences #developer #softwaredeveloper Attend the next NDC conference near you: https://ndcconferences.com https://ndclondon.com/ Subscribe to our YouTube channel and learn every day: / @NDC Follow our Social Media! https://www.facebook.com/ndcconferences https://twitter.com/NDC_Conferences https://www.instagram.com/ndc_conferences/ #javascript #web #api #typescript #code Want to demonstrate your cool SaaS product directly in the browser? Or just curious about how things like CodePen or CodeSpaces could be built? Interactive sandboxes are one of the best ways to entice and onboard developers to your APIs and services. One of the most difficult parts of creating and running a sandbox is building an environment to execute third party code safely and securely. We’ll level up your developer experience with a demonstration of how to build a browser based code editor with TypeScript and Deno Subhosting. You’ll learn how to make a sandbox that can execute code in a controlled, affordable and secure way right in your browser.