Cliprun is a browser-based Python code runner that allows users to execute code instantly on any webpage without requiring an environment setup. It integrates with ChatGPT, Claude, and GitHub, enabling users to run code with a right-click. The built-in editor supports syntax highlighting, autocomplete, and dark mode. Cliprun provides access to Python libraries like requests, pandas, and numpy, making it useful for web scraping, API integration, data analysis, and automation. Users can also schedule scripts to run at custom intervals and handle files directly within the browser. No sign-up is required, and it offers unlimited usage.