Record Once is a screen recording tool designed for creating professional video tutorials of web applications. It uses AI to automatically edit recordings by removing mistakes, filler words, and delays, and can translate both the voice-over and on-screen text into multiple languages. The tool records at the code/HTML level rather than as pixels, enabling resolution-independent, smooth playback up to 120+ FPS with small file sizes. Features include automatic voice-overs, drag-and-drop editing, background music, and instant publishing without rendering. Videos can be updated later, and changes propagate everywhere they are embedded. The platform also generates text guides with screenshots from the same recording. Record Once is used by teams at companies like the State of Michigan, AppSignal, and Cloudflare to reduce tutorial creation time from hours to minutes. It runs on Windows, Mac, and Linux, and offers a free tier to get started.