CodePen Radio Podcast
1) #225: Learning New Things
Cassidy and Marie talk about their journey to keep learning new things, while also not stressing about trying to keep up with all the things in web development.
AUDIO REMOVED: The podcast creator has removed the audio for this episode.2) 410: Trying to help humans in an industry that is becoming increasingly non-human
Chris & Marie jump on the podcast to talk about just how drastically customer support has changed over the last few years. We still exclusively do customer support over email. Incoming email from real...Show More
3) 409: Our Own Script Injection
Chris and Stephen talk about how we use a Cloudflare Worker & HTMLRewriter to inject a very special <script> tag into the previews of the Pens you work on. This script has a lot of important jobs so i...Show More
4) 408: Proxied Third-Party JavaScript
Chris and Stephen hop on the podcast to discuss the concept of a proxy. Possibly the most "gray hat" thing that CodePen does. We use a third-party analytics tool called Fullres. We could just put a li...Show More
5) 407: Our Own CDN
Robert and Chris jump on to talk about own own little CDN project. Maybe that's not the right term, but we struggled with naming it. Truth be told, it's the /public/ folder in our monorepo, where the ...Show More
6) 406: Hot Trends of 2025
Marie and Chris jump on to discuss some of the trends of what people are building on CodePen here, approximately halfway through 2025. New CSS! Custom @functions (just landed) if() function...Show More
7) 405: Elasticsearch → Postgres Search
Alex & Chris get into a fairly recent technological change at CodePen where we ditched our Elasticsearch implementation for just using our own Postgres database for search. Sometimes choices like this...Show More
8) 404: Preventing Infinite Loops from Crashing the Browser
Stephen and Chris hop on to talk about how we're saving everyone from crashed browser tabs in CodePen's 2.0 editor. One simple: Executing JavaScript can cause a browser tab to entirely lock up, p...Show More
9) 403: Privacy & Permissions
Chris & Rachel hop on the show to talk about the expanded privacy (access) model in the 2.0 editor (in Private Beta as we speak). Private Pens have always been a big deal, but as private as they are, ...Show More
10) 402: Bookmarks
Pins are dead! Long live bookmarks! Pins was never a good name for the feature we have on CodePen where you can mark a Pen or Collection to more quickly jump back to it from anywhere on the site...Show More