Convert VBA to Python Safely

Why migrate from VBA?

VBA has powered finance and operations for decades, but it lacks modern software engineering features like version control, unit testing, and scalable performance. Migrating to Python allows you to:

• Process millions of rows significantly faster with pandas.
• Integrate with modern APIs, databases, and cloud services.
• Write clean, readable code that doesn't hide inside a binary .xlsm file.

Our converter engine uses a deterministic approach to parse your VBA logic and reconstruct it as Python, offering optional AI refinement for edge cases. It's designed to be a "copilot" for migration—doing the heavy lifting so you can focus on architecture.

How to Convert a Macro

1. Export your VBA: Open the VBA Editor in Excel (Alt+F11), right-click your module, and select "Export File" to save it as a .bas file.
2. Run the Converter: Upload the file to our converter tool. The engine will generate a Python equivalent.
3. Review Dependencies: The output will likely suggest libraries like pandas or openpyxl. Ensure these are installed in your Python environment.
4. Validate Logic: Run the Python script against a sample dataset to ensure output parity with the original Excel sheet.

Before & After Examples

Dim i As Integer
For i = 1 To 100
    If Cells(i, 1).Value > 50 Then
        Cells(i, 2).Value = "High"
    End If
Next i

import pandas as pd

df = pd.read_excel("data.xlsx")
# Vectorized operation (much faster)
df.loc[df['A'] > 50, 'B'] = 'High'

Function CleanText(txt As String)
    CleanText = Trim(UCase(txt))
End Function

def clean_text(txt: str) -> str:
    return txt.strip().upper()

Related Conversions

• VBA Dictionary to Python dict — Translate Scripting.Dictionary patterns like Add, Exists, Keys, Items, and For Each loops.

Security & Privacy

Code security is paramount. When running VBA, you execute macros locally. When converting with us:

• Logic only: We analyze code structure, not your actual data rows.
• Transient Processing: Uploaded files are processed in memory and discarded immediately after conversion.
• No Training: Your code is not used to train public AI models.

Frequently Asked Questions