Turn messy legacy VBA into reviewable Python.
Interactive converter is live: paste VBA, upload modules, or run batch conversions. Start with a compatibility check, view pricing, then review every change before you ship.
Prefer a quick look first? Read our guides or see real VBA to Python example conversions before you test.
Designed for Excel worksheet automation macros.
Best results for data prep, reporting, and workbook-driven workflows.
Macros that rely on Windows APIs, proprietary add-ins, or complex UI event systems are flagged during audit and may require manual follow-up.
Modernize legacy Excel VBA into reviewable, deterministic Python
VBAtoPython helps finance, payroll, and analytics teams safely migrate fragile Excel macros into maintainable Python — without hallucinations, hidden changes, or code retention.
Built for reviewable modernization
Not a demo toy. This is a controlled migration path designed for teams that need auditability.
Example conversions
See side-by-side VBA and Python with notes on what changed and why.
Risk flagged, not guessed
GoTo, On Error, resizing arrays, and complex flow are explicitly flagged for review.
Privacy-first processing
In-memory conversion. No code retention. No training on your macros.
Micro-case study: a real-world macro cleanup
This is what a typical legacy macro looks like when modernized. The goal is not ‘pretty code’ — it’s reviewable logic and visible risk.
Example stats from a typical legacy module — yours will vary.
What was flagged
- ⚠GoTo-driven retry loop refactored into structured flow
- ⚠ReDim Preserve used in a loop (array growth)
- ⚠Implicit Variant conversions made explicit
What you get
- ✓Deterministic Python draft you can diff and review
- ✓A list of flagged blocks with suggested refactor patterns
- ✓Conversion stats so you know where the risk lives
Why legacy VBA becomes a liability
Excel VBA powered automation for decades — but today it’s a maintenance risk. Legacy macros are hard to test, hard to version properly, and often understood by only one person who no longer works here.
When something breaks, teams face a bad choice: rewrite everything by hand, or paste proprietary logic into generic AI tools and hope for the best. Neither option is acceptable in regulated, high-trust environments.
Not a chatbot — a modernization tool
VBAtoPython analyzes real-world Excel VBA and produces deterministic Python drafts that preserve logic, expose risk, and are meant to be reviewed — not blindly executed.
- ✓Clean Python 3 drafts mapped to appropriate libraries (pandas, openpyxl, xlwings)
- ✓Plain-English explanations of what changed and why
- ✓Flags for risky or complex constructs (GoTo, On Error, Select Case)
- ✓A clear boundary between what is safe and what needs human review
Deterministic output — not generative guesswork
If you work in finance, payroll, or accounting, silent hallucinations are unacceptable. VBAtoPython uses a deterministic parsing engine: identical VBA input produces identical Python output. Complex constructs are explicitly flagged so you can review and refactor safely.
Designed for modern Excel and beyond
Converted Python is structured to support multiple execution targets, including:
- Python in Excel (where available)
- pandas / openpyxl scripts
- Excel automation via APIs (xlwings)
You’re not locked into a single runtime. The goal is future-safe Excel automation — not novelty.
Built for teams maintaining real spreadsheets
- • Analysts inheriting decade-old macros
- • Finance and payroll teams under audit pressure
- • Organizations reducing VBA dependency without breaking workflows
It’s not for learning Python syntax. It’s for making Excel automation survivable.
Example: summing a column in VBA vs Python
VBA → Python (illustrative)VBA input
Sub SumColumn()
Dim total As Double
Dim i As Long
total = 0
For i = 2 To 100
total = total + Cells(i, 3).Value
Next i
MsgBox "Total: " & total
End SubPython output
def sum_column(ws, start_row: int = 2, end_row: int = 100, col: int = 3) -> float:
"""Sum numeric values in a single worksheet column."""
total: float = 0.0
for row in range(start_row, end_row + 1):
value = ws.cell(row=row, column=col).value
if isinstance(value, (int, float)):
total += float(value)
return totalThe live app will let you paste your own macros, inspect the generated Python, and export it into your projects.
Convert VBA to Python — the safe way
If you need to migrate Excel VBA macros into Python without risking logic errors, privacy leaks, or unreviewable output, VBAtoPython gives you a controlled path forward.
Converter UI coming next
This will become the interactive editor: paste VBA on the left, inspect Python on the right, and export code into your repo.