Codeflash

Codeflash - Code Editor & IDE Codeflash is a free, offline code editor and IDE for Android that lets you write, run, and preview code directly on your phone or tablet — no internet connection, server, or compiler setup required. Whether you're a student learning to code, a web developer testing a quick idea, or a professional who needs a mobile IDE on the go, Codeflash turns your device into a full-featured coding environment. Run and Preview Code Instantly Codeflash can execute and preview: HTML, CSS, JavaScript, TypeScript, Python, Ruby, Markdown, JSON, SVG, and plain text files — all offline, with real-time output. Build a web page, test a JavaScript snippet, run a Python script, or render Markdown, and see the result instantly with the built-in browser preview, emulator, desktop mode, and box model tools. Syntax Highlighting & Autocomplete for 200+ File Types Beyond the languages it can run, Codeflash provides syntax highlighting and smart autocompletion for more than 200 programming and markup languages, including Java, C, C++, C#, Kotlin, Swift, PHP, SQL, Go, Rust, Dart, Pascal, and many more — making it a versatile code viewer and editor for almost any file type y