01REFERENCE
Purchase order
Upload the items you agreed to buy (PDF, Excel or CSV)
Choose order fileText PDF, Excel (.xlsx, .xls), CSV PRIVATE-BY-DESIGN · FREE BETA
Find invoice mistakes.
Before you pay.
Drop your purchase order and supplier invoice. InvoiceGuard checks line items, quantities and prices — right in your browser.
✓ No account needed✓ Your files stay on your device✓ Downloadable report
YOUR WORKSPACE
Compare documents
Start with two files. Use the sample to see a real result instantly.
Want real example files? Download sample order · Download sample invoice
02DOCUMENT TO VERIFY
Supplier invoice
Upload the invoice you want to check
Choose invoice filePDF (selectable text), Excel, CSVPRO WORKFLOW
Match one order against multiple invoices
Combine up to 10 supplier invoices and compare their total quantities and line values against a single purchase order. Processed locally.
Pro account required · Subscriptions not active yetCheck your column mapping
We detected the headings below. Change them if needed, then compare again.
Matched lines0
Needs review0
Invoice lines0
Unexplained difference0.00
Line-by-line findings
| Item | Order qty | Invoice qty | Order price | Invoice price | Status |
|---|
Check results against the original documents. PDF layout and ambiguous item names can require manual review. InvoiceGuard is not accounting or tax advice.
FREE TOOLS & GUIDES
Check supplier invoices without expensive software.
Invoice price difference calculator
Quickly calculate the unit-price, quantity and total billed differences.
Open price calculator →Purchase order vs invoice
Learn what to check before approving the supplier payment.
Read reconciliation guide →Invoice discrepancy checker
Understand duplicate entries, missing items and unit price mistakes.
See common invoice issues →THE PROCESS
Three steps. No spreadsheets to compare manually.
Add your files
Use text-based PDFs or spreadsheets for both the purchase order and invoice.
Catch discrepancies
Detect missing and unexpected lines, changed quantities, price differences and potential duplicate rows.
Export the findings
Download a CSV report with the exact lines that need a second look.
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PRIVACY FIRST
Your invoices don't leave your browser.
Document parsing and comparison happen locally in your browser. The app does not upload, store or transmit document contents to a server. Don't use this beta as the sole approval for a payment.
SIMPLE PRICING
Start free. Upgrade when it makes sense.
The core comparison tool is free during beta. Pro billing is prepared but not active until the payment provider is connected.
BETA
Free
$0
Spreadsheet and text PDF comparison, discrepancy checks, CSV exports.
Compare documents →COMING SOON
Pro
$19 / month
Combine up to 10 invoices against one purchase order and generate a consolidated report. Subscriptions are currently disabled.
We'll enable subscriptions after checkout testing.