Replit is an American technology company founded in 2016, based in San Mateo, California. It specializes in an online integrated development environment (IDE) that supports multiple programming languages and enables real-time collaborative coding directly in the web browser. The platform is designed to make programming accessible to beginners while providing powerful tools for professional developers.

The Replit IDE allows users to write, run, and debug code without any local setup. It features collaborative tools that enable multiple users to code together simultaneously. In 2024, Replit introduced the Replit Agent, an AI-powered assistant that automates coding tasks and helps users build applications. The company serves a wide range of users, including individual developers, educational institutions, and businesses, with a growing community of over 20 million developers. Replit has achieved significant growth, reaching an estimated $100 million in annual recurring revenue by mid-2025 and forming strategic partnerships, including one with Microsoft.