Free Tools April 22, 2026 · 5 min read

Free AI Code Humanizer Online — Clean Up AI Code in Your Browser

Code Humanizer runs in your browser: paste AI-generated code, choose a style preset and copy a version that fits your project. Here is how to use it and what the free plan includes.

How to use it

  1. Paste your code — anything from ChatGPT, Copilot, Claude or Gemini
  2. Choose your language and style preset — Idiomatic, Minimalist, Documented or Enterprise
  3. Set the intensity — 20% only tidies whitespace and scaffolding; 60% adds naming conventions; 80–100% also simplifies needless temporaries
  4. Copy the result and review it like any other change

What you get on the free plan

Example

AI draft
public class OrderService { // Method to apply a discount to an order public double applyDiscount(double orderTotal, double discountPercent) { // Step 1: Validate the input if (discountPercent < 0 || discountPercent > 100) { throw new IllegalArgumentException("Discount must be between 0 and 100"); } // Step 2: Calculate the discount amount double discount_amount = orderTotal * discountPercent / 100; double discounted_total = orderTotal - discount_amount; return discounted_total; } }
After Code Humanizer (Idiomatic, 100%)
public class OrderService { public double applyDiscount(double orderTotal, double discountPercent) { // Validate the input if (discountPercent < 0 || discountPercent > 100) { throw new IllegalArgumentException("Discount must be between 0 and 100"); } double discountAmount = orderTotal * discountPercent / 100; return orderTotal - discountAmount; } }

Is my code stored?

No. Code is processed in memory to produce the result and is not saved to our database. See the Privacy Policy for details.

Clean up AI code online, free

No install and no credit card. 3 free tries without an account.

Open Code Humanizer

A note on coursework

Code Humanizer is a readability and style tool. It isn't designed to hide who wrote code, and using it to break a course's academic integrity rules is against our Terms of Service. If your course allows AI assistance, comparing an AI draft with a cleaned-up version is a good way to learn idiomatic style.