Digital toolAvailable

Catch invoice differences before you pay.

Compare a purchase order with its supplier invoice, review exact item matches and spot quantity, price and net-total discrepancies. Your files stay in your browser.

Invoice review Purchase orders Browser tool

$29USD · base price
Paddle calculates the final total and applicable tax at checkout.

One-time purchase, online access.

The full version opens in your browser after server-verified payment; sign in on other browsers with an emailed link. Try the free demo first, and review the terms and refund policy before buying.

Buy with Paddle · $29 Try the free demo

Version 1.0.0

Actual Invoice Match Guard screen using synthetic data: purchase-order net 231.00 USD, calculated invoice net 247.50 USD, supplied invoice net 248.50 USD and five item groups to review.

Actual review screen · synthetic sample data

OVERVIEW

Catch invoice differences before you pay.

Load a CSV or supported XLSX purchase order and invoice, map their columns and compare exact unique item IDs. Review missing, extra and duplicate items, quantity and unit-price differences, and supplied-versus-calculated net line totals. An independent product in the BLZN Works collection; Supplier Update Guard purchases do not unlock it.

Load one purchase order and its corresponding invoice locally.
Map item IDs, quantities, unit prices and optional net totals; confirm one currency.
Review exact matches and discrepancies against your original documents.

CAPABILITIES

A working review, with clear limits.

Try the sample and read the guide to assess compatibility with your files.

Exact, case-sensitive unique item matching. Duplicate IDs are ambiguous and never arbitrarily paired.
Missing and extra items, quantity and unit-price differences, net line-total reconciliation.
Deterministic decimal arithmetic with documented per-line currency rounding.
Full edition CSV and PDF discrepancy reports; preview demo has no report downloads.

BEFORE YOU DECIDE

Clarity comes first.

Owned by Blue Horizen Technology, Armenia. Contact support. Read our privacy policy, refund policy and terms for the purchase conditions.

Compatibility

UTF-8 CSV with explicit comma, semicolon or tab delimiter. Single-sheet, values-only XLSX with text identifiers.
One selected currency: USD, EUR, GBP, CAD, AUD, CHF, JPY or KWD. Text decimal separator is explicit; typed XLSX numbers are locale independent. No currency conversion.
Current desktop Chrome, Edge, Firefox and Safari with JavaScript and WebAssembly.

Limits

5 MB per input, 64 columns, 16,384 characters per cell. Demo: 20 rows per file. Full: 10,000 rows per file. PDF: 200 pages; export CSV for larger reports.
No PDF intake, OCR, formulas, merged cells, hidden data, macros, external links or credit notes.
Net line amounts before tax, discounts and shipping only. Quantity/unit price up to 999999.999999, at most six decimals.
No accounting integration, automatic payments, goods-received verification or accounting decisions.

Good to know

Files and reports are processed in tab memory with no upload or file-content analytics. Clearing or closing the tab discards the session.
One-time USD 29 purchase plus applicable tax: permanent online access to version 1.x. Product 002 has separate licensing and uses the shared BLZN Works checkout, accounts and emailed sign-in links. Supplier Update Guard does not unlock this product.
Reports are for review against your original documents. They do not authorize a payment.