Code Transformer
The Code Transformer uses AI to convert code between programming languages, frameworks, and paradigms while maintaining functionality and following best practices.
Overview
Access the Transformer from the ReformCode page by selecting the Transformer tab. Transform your code across:
- Languages: JavaScript to Python, TypeScript to Go, etc.
- Frameworks: React to Vue, Express to FastAPI
- Paradigms: Class-based to functional, callbacks to async/await
- Versions: Modernize legacy code to current standards
Getting Started
- Navigate to ReformCode
- Click the Transformer tab
- Paste or load your source code
- Select the source language/framework
- Select the target language/framework
- Click Transform
Transformation Types
Language Conversions
Convert between any supported languages:
| From | To | Common Use Cases |
|---|---|---|
| JavaScript | TypeScript | Add type safety |
| Python | JavaScript | Browser compatibility |
| Java | Kotlin | Modern Android |
| Ruby | Python | Migration projects |
| PHP | Node.js | Backend modernization |
Framework Migrations
Transform between popular frameworks:
Frontend
- React to Vue.js
- Vue.js to Svelte
- Angular to React
- jQuery to vanilla JS
Backend
- Express to FastAPI
- Django to Express
- Spring Boot to NestJS
- Rails to Django
Code Modernization
Upgrade legacy patterns:
- ES5 to ES6+: Arrow functions, destructuring, modules
- Callbacks to Promises: Async/await patterns
- Class to Functional: React components, utilities
- CommonJS to ESM: Import/export syntax
Style Transformations
- OOP to Functional: Remove classes, use pure functions
- Imperative to Declarative: Map/filter/reduce patterns
- Verbose to Concise: Reduce boilerplate
Using the Transformer
Basic Workflow
1. Paste source code
2. Set source language: "JavaScript (React)"
3. Set target language: "TypeScript (Vue)"
4. Click Transform
5. Review generated code
6. Copy or send to Editor
Configuration Options
Preserve Comments: Keep or strip comments Strict Mode: Enforce strict type checking (TypeScript) Modern Syntax: Use latest language features Preserve Formatting: Maintain code style
AI Model Selection
| Model | Credits | Best For |
|---|---|---|
| Gemini Flash | 2 | Simple transformations |
| Gemini Pro | 4 | Complex conversions |
| Claude Sonnet | 5 | Framework migrations |
Example Transformations
JavaScript to TypeScript
Source (JavaScript):
function calculateTotal(items) {
return items.reduce((sum, item) => {
return sum + item.price * item.quantity;
}, 0);
}
Result (TypeScript):
interface CartItem {
price: number;
quantity: number;
}
function calculateTotal(items: CartItem[]): number {
return items.reduce((sum, item) => {
return sum + item.price * item.quantity;
}, 0);
}
React to Vue
Source (React):
function Counter() {
const [count, setCount] = useState(0);
return (
<button onClick={() => setCount(c => c + 1)}>
Count: {count}
</button>
);
}
Result (Vue 3):
<script setup>
import { ref } from 'vue';
const count = ref(0);
</script>
<template>
<button @click="count++">
Count: {{ count }}
</button>
</template>
Callbacks to Async/Await
Source:
function fetchUser(id, callback) {
fetch(`/api/users/${id}`)
.then(res => res.json())
.then(data => callback(null, data))
.catch(err => callback(err));
}
Result:
async function fetchUser(id) {
const response = await fetch(`/api/users/${id}`);
return response.json();
}
Supported Languages
Full Support (All Features)
- JavaScript / TypeScript
- Python
- Go
- Rust
- Java
- C#
Good Support (Most Features)
- PHP
- Ruby
- Swift
- Kotlin
- C / C++
Basic Support
- Perl
- Scala
- Haskell
- Lua
Tips for Best Results
Prepare Your Code
- Include imports: Helps AI understand dependencies
- Add comments: Context improves accuracy
- Use standard patterns: Avoid obscure syntax
- Keep it focused: Transform one module at a time
Review Output
- Check logic: Verify transformations are correct
- Test edge cases: Ensure behavior matches
- Validate types: For typed languages
- Run linters: Catch style issues
When to Use Each Model
- Simple syntax changes: Gemini Flash
- Full file conversions: Gemini Pro
- Framework migrations: Claude Sonnet
- Complex refactoring: Claude Opus
Integration with Editor
Send from Editor
- Load code in the Editor tab
- Click Send to Transformer
- Code appears in Transformer
- Select target language
- Transform
Send to Editor
- Complete transformation
- Click Open in Editor
- Continue editing and analyzing
Troubleshooting
"Transformation incomplete"
- Code may be too long; split into smaller sections
- Try a more powerful model
- Add more context comments
"Syntax errors in output"
- Review and fix manually
- May need language-specific tweaks
- Report as feedback for improvement
"Logic changed unexpectedly"
- Review transformation closely
- Provide more context in comments
- Use a higher-tier model
Credit Usage
| Transformation | Flash | Pro | Sonnet |
|---|---|---|---|
| Simple (< 50 lines) | 2 | 4 | 5 |
| Medium (50-200 lines) | 3 | 5 | 7 |
| Complex (200+ lines) | 4 | 6 | 10 |
Best Practices
- Start small: Transform and verify in chunks
- Keep originals: Don't overwrite source files
- Test thoroughly: Run transformed code
- Iterate: Re-transform problem sections
- Learn patterns: Note common transformation needs
Next Steps:
- AI Builder - Generate complete applications
- Code Editor - Edit and analyze code
- Universal Search - Find code examples