Refraction

Refraction is an AI-powered code generation tool built for developers who want to speed up everyday engineering tasks without switching contexts. Instead of starting from scratch, you can paste an existing block of code into the Refraction website, select the correct programming language, and choose what you want the AI to do—then click “Generate” to get results you can copy back into your project. It’s designed to be practical for real codebases: generating unit tests, producing inline documentation, refactoring functions, explaining code, or even converting snippets between languages.

Refraction supports 56 programming languages, including C#, C++, Go, Java, JavaScript, PHP, Python, R, Ruby, Swift, and TypeScript. This broad coverage makes it useful for teams working across multiple stacks or for developers who maintain legacy systems alongside modern services.

Beyond test and documentation generation, Refraction can help with code improvements and style checking, identifying bugs, adding debug statements, separating hardcoded literals, and enriching code with types. It also includes generators for more specialized outputs such as SQL queries, regex patterns, CI/CD pipelines, diagrams, and function scaffolding. For developers learning unfamiliar code or new concepts, the code explanation and improvement tools provide a faster way to understand intent and iterate safely. more