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Code Transformer

Convert code between languages and frameworks

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

  1. Navigate to ReformCode
  2. Click the Transformer tab
  3. Paste or load your source code
  4. Select the source language/framework
  5. Select the target language/framework
  6. Click Transform

Transformation Types

Language Conversions

Convert between any supported languages:

FromToCommon Use Cases
JavaScriptTypeScriptAdd type safety
PythonJavaScriptBrowser compatibility
JavaKotlinModern Android
RubyPythonMigration projects
PHPNode.jsBackend 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

ModelCreditsBest For
Gemini Flash2Simple transformations
Gemini Pro4Complex conversions
Claude Sonnet5Framework 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

  1. Include imports: Helps AI understand dependencies
  2. Add comments: Context improves accuracy
  3. Use standard patterns: Avoid obscure syntax
  4. Keep it focused: Transform one module at a time

Review Output

  1. Check logic: Verify transformations are correct
  2. Test edge cases: Ensure behavior matches
  3. Validate types: For typed languages
  4. 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

  1. Load code in the Editor tab
  2. Click Send to Transformer
  3. Code appears in Transformer
  4. Select target language
  5. Transform

Send to Editor

  1. Complete transformation
  2. Click Open in Editor
  3. 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

TransformationFlashProSonnet
Simple (< 50 lines)245
Medium (50-200 lines)357
Complex (200+ lines)4610

Best Practices

  1. Start small: Transform and verify in chunks
  2. Keep originals: Don't overwrite source files
  3. Test thoroughly: Run transformed code
  4. Iterate: Re-transform problem sections
  5. Learn patterns: Note common transformation needs

Next Steps: