Code Converter
Browser-based multi-language code converter powered by LLMs.
Overview
Problem
Developers frequently need to convert code between languages for migrations, learning, or prototyping. Existing tools handle single files but fail on multi-file projects — losing directory structure, naming conventions, and cross-file references.
Solution
Built a browser-based tool that accepts entire project directories, preserves their architecture during conversion, and provides a side-by-side diff view. The converted output can be exported as a ready-to-use ZIP archive.
Tech Stack
Architecture
Features
- Multi-file project upload with directory structure preservation
- Side-by-side comparison of original and converted code
- Support for multiple source and target languages
- Architecture-aware conversion that maintains naming and references
- Export converted project as ZIP
- Syntax-highlighted code editor with line numbers
Technical Decisions
Used Vite + TypeScript for fast development iteration and type safety
Client-side file tree parsing to avoid uploading user code to a server
Streaming LLM responses to show conversion progress in real time
Tailwind CSS for consistent, responsive UI without custom stylesheet overhead
Challenges
- Maintaining cross-file import references when converting between language ecosystems
- Handling large projects without exceeding LLM context windows — implemented chunked conversion
- Building an intuitive file tree UI that maps original to converted structure
Outcomes
- Fully client-side architecture — no user code leaves the browser
- Supports conversion between 10+ programming languages
- Clean project export with correct directory hierarchy