Join 300,000+ spreadsheet users

AI Excel VBA Code Debugger: Debug VBA With AI

AI excel vba debugger that repairs runtime errors, optimizes slow macros, and explains fixes in plain English—no manual breakpoint stepping, no Stack Overflow searches, no coding degree required. This vba code checker transforms broken automation into production-ready solutions through natural conversation.

Start free

No credit card required • Free requests • Cancel anytime

VBA Code Debugger

Fix VBA code errors instantly

Quick VBA Debug Examples (click to try)

My loop keeps skipping the first row of data and I don’t know why
My lookup formula shows an error when it can’t find a match
My macro crashes when it can’t find a file
My macro runs very slowly with lots of data

Fixed VBA Code AI Debugged


Sub FixLoopMissingFirstRow()
    Dim i As Long
    Dim lastRow As Long
    
    ' Find the last row with data in column A
    lastRow = Cells(Rows.Count, 1).End(xlUp).Row
    
    ' Loop through ALL rows starting from row 1
    For i = 1 To lastRow
        ' Make sure the cell isn't empty
        If Cells(i, 1).Value <> "" Then
            ' Your code to process each row goes here
            Debug.Print "Processing row: " & i
        End If
    Next i
End Sub


Sub FixLookupError()
    Dim lookupValue As String
    Dim result As Variant
    
    lookupValue = Range("A1").Value
    
    ' Try to find the value, but don't crash if it's not there
    On Error Resume Next
    result = Application.WorksheetFunction.VLookup(lookupValue, Range("B:C"), 2, False)
    
    ' Check if we got an error
    If Err.Number <> 0 Then
        Range("D1").Value = "Not Found"  ' Show friendly message instead
        Err.Clear
    Else
        Range("D1").Value = result  ' Show the found value
    End If
    
    On Error GoTo 0  ' Turn normal error handling back on
End Sub


Sub FixFileNotFoundError()
    Dim filePath As String
    Dim wb As Workbook
    
    filePath = "C:\Reports\MonthlyData.xlsx"
    
    ' Check if the file exists BEFORE trying to open it
    If Dir(filePath) <> "" Then
        Set wb = Workbooks.Open(filePath)
        MsgBox "File opened successfully!"
        ' Your code to work with the file goes here
    Else
        ' Show a friendly message instead of crashing
        MsgBox "We couldn't find the file. Please check the path: " & filePath, vbExclamation
    End If
End Sub


Sub FixSlowMacro()
    ' Turn off screen updates and automatic calculations to speed up
    Application.ScreenUpdating = False
    Application.Calculation = xlCalculationManual
    
    ' Your macro code here - this will run much faster now
    Dim i As Long
    For i = 1 To 1000
        Cells(i, 1).Value = i
    Next i
    
    ' Turn everything back on when done
    Application.Calculation = xlCalculationAutomatic
    Application.ScreenUpdating = True
    
    MsgBox "Macro completed!"
End Sub

Code Breakdown
This fix ensures your loop starts at the correct row. The original code likely started at row 2, which skipped your first row of data. We also added a check to skip empty cells so your macro doesn’t process blank rows.

Code Breakdown
This solution adds error handling around your lookup formula. When VBA can’t find a match, it throws an error and stops running. The fix catches this error and shows ‘Not Found’ instead of crashing your macro.

Code Breakdown
This fix checks if the file exists before trying to open it. The original code would crash with an error message if the file was missing. Now it shows a helpful message and continues running without breaking.

Code Breakdown
This fix speeds up your macro by turning off screen updates and automatic calculations. Excel was trying to redraw the screen after every single change, which makes macros very slow. These settings make it run much faster.

Debug any VBA code with AI Start here

Pro Tip

Be specific about the error message. Instead of “my code doesn’t work”, try “I get Run-time error 9 when opening a workbook”.

3 steps to debug your VBA code.

Insert buggy code, describe what’s failing, and receive repaired macro. No syntax manuals, no forum hunting, no computer science background needed.

1Insert your buggy code

Drop malfunctioning macros into the editor. The vba checker analyzes full project context: modules, references, and sheet structures without requiring you to isolate the problem.

excel vba code debugger - fix your code with ai

2Describe the errors you’re getting

Explain failures in plain language: “crashes on merged cells” or “loops infinitely on blank rows.” This ai for vba code interprets intent and error patterns simultaneously.

insert buggy code to ai vba debugger and describe the error

3Receive repaired code

Get a debugged, optimized macro with comments explaining root causes. Select accept or decline changes and iterate with follow-up prompts if needed.

get debugged code from ai to accept or decline the changes and chat further with ai if needed

The value professionals get from using Ajelix.

Every hour spent manually tracing VBA errors is an hour competitors dedicate to strategic analysis and process innovation.

Data Analysts

Stop troubleshooting macros and start delivering insights. Fix dashboard automations that fail on edge cases and data cleaning scripts that break with inconsistent formats.

Result

Deliver reliable reports 5x faster

Operations Managers

Repair legacy macros without escalating to IT. Scale department workflows by eliminating manual Excel processes that depend on fragile vba code.

Result

Triple process capacity with zero new hires

Business Owners

Remove yourself as the Excel emergency hotline. Fix invoicing generators and inventory trackers without learning VBA or hiring contractors at $150/hour.

Result

Reclaim 15+ hours weekly for growth initiatives

How Ajelix outperforms generic AI.

Purpose-built excel vba debugger versus general-purpose chatbots

Feature	Ajelix	General AI
Code Quality	Debugged macros with error handling	Basic snippets, often incomplete
Excel-Specific Knowledge	Fine-tuned skills for Excel	Limited model skills
Debugging Process	AI traces execution flow and pinpoints root causes	Manual troubleshooting required
Optimization	VBA-specific performance tuning	Generic suggestions
Learning Curve	Zero coding required	Requires knowledge to refine prompts
Optimization	VBA-specific performance tuning	Generic code cleanup tips

From broken macros to working automation.

Ajelix doesn’t just patch code, it transforms you into someone who ships reliable workflows without the debugging grind.

Explain errors in plain English

The ai code debug understands Excel’s object hierarchy, execution contexts, and common VBA pitfalls, translating cryptic error messages into actionable fixes without manual code tracing.

Reduce debugging time by 90%

Resolve runtime errors in minutes. Reclaim time previously wasted on breakpoint stepping, variable watching, and scouring decade-old forum posts for matching scenarios.

Prevent crashes before deployment

The vba code cleaner proactively identifies hidden issues, type mismatches, unqualified references, memory leaks. When errors occur, paste the description and receive context-aware solutions that preserve your business logic.

Build a library of proven solutions

Every debug session creates reusable knowledge. Save fixed patterns and apply them to future projects without reinventing the wheel.

Recover 10h+ every week

Stop being the Excel firefighter. Redirect that energy toward high-impact work: process design, stakeholder collaboration, and revenue-driving analysis.

Frequently Asked Questions

How does Ajelix differ from ChatGPT for VBA debugging?

ChatGPT provides generic coding suggestions. Ajelix’s excel vba debugger uses models fine-tuned for VBA, understands Excel’s COM object model, and maintains project-wide context across multiple modules.

Does Ajelix handle complex multi-module Excel projects?

Yes. The vba code checker ai tracks variable scope, custom functions, and inter-module dependencies automatically.

What if the AI’s fix introduces new errors?

Every suggestion includes a before/after difference view and one-click rollback.

Can I trust AI with mission-critical Excel macros?

Ajelix processes code client-side and never stores your macros. The debug vba code functionality includes automatic backups and a sandbox mode for testing fixes on copies of your workbooks. Over 300,000 professionals trust it with production automations.

Is this better than Excel’s built-in debugger?

Excel’s debugger shows where code breaks. Ajelix’s ai code debugger explains why it broke and writes the fix for you. It’s like having a senior VBA developer pair-programming with you 24/7, except it never sleeps and costs 95% less.

Quality control

Accounting

Sales

Tutorials and Guides

Excel Formulas and Functions

Release Notes

AI Excel VBA Code Debugger: Debug VBA With AI

3 steps to debug your VBA code.

1Insert your buggy code

2Describe the errors you’re getting

3Receive repaired code

The value professionals get from using Ajelix.

Data Analysts

Operations Managers

Business Owners

How Ajelix outperforms generic AI.

From broken macros to working automation.

Explain errors in plain English

Reduce debugging time by 90%

Prevent crashes before deployment

Build a library of proven solutions

Recover 10h+ every week

Frequently Asked Questions

The Choice Is Simple

Resources

Top Articles

Services

Products

Company

Our Brands

The easiest way to get expert-level analysis with AI