Online integrated development environments

Replit (), formerly Repl.it, is an American technology company. Founded in 2016, Replit developed an online integrated development environment (IDE) also named Replit that supports various programming languages. In September 2024, it released the first version of Replit Agent, an AI agent for automating software development, with which users can interact in natural language.

CodePen is an online community for testing and showcasing user-created HTML, CSS and JavaScript code snippets. It functions as an online code editor and open-source learning environment, where developers can create code snippets, called "pens," and test them. It was founded in 2012 by full-stack developers Alex Vazquez and Tim Sabat and front-end designer Chris Coyier. Its employees work remotely, rarely all meeting together in person. CodePen is a large community for web designers and developers to showcase their coding skills, with an estimated 330,000 registered users and 14.16 million mont

online integrated development environment

open-source IDE