Python 2 to 3 Converter

What is This Tool?

This free online converter makes it easy to upgrade your legacy Python 2 code to Python 3 instantly. It’s perfect for developers modernizing older projects, fixing compatibility issues, or preparing code for long-term maintenance.

How to Use

1. Paste or type your Python 2 code into the editor.
2. Click Convert to generate the Python 3 version.
3. Download, copy, or share the converted result instantly.

You can also sign in with Google or GitHub to save your conversion history and revisit it anytime.

Why Upgrade to Python 3?

Python 2 reached end-of-life in January 2020, meaning it no longer receives updates or security fixes. Python 3 is now the standard, offering:

• Better Unicode and string handling
• Cleaner, more consistent syntax
• Performance improvements and better libraries
• Ongoing community and package support

Migrating ensures your code remains secure, maintainable, and compatible with the latest tools and frameworks.

Key Differences Between Python 2 and 3

# Python 2: print is a statement
print "Hello, World!"

# Python 3: print is a function
print("Hello, World!")
    

# Python 2: Integer division
result = 5 / 2  # Outputs 2

# Python 3: True division
result = 5 / 2  # Outputs 2.5
    

Learn more about porting from Python 2 to 3 in the official Python porting guide.

Example Conversions

Basic Input Example

Python 2

print "Enter your name:"
name = raw_input()
print "Hello, " + name
    

Python 3

print("Enter your name:")
name = input()
print("Hello, " + name)
    

Dictionary Iteration

# Python 2
for key, value in my_dict.iteritems():
    print key, value

# Python 3
for key, value in my_dict.items():
    print(key, value)