Drop two invoices above to compare amounts, taxes and terms
Compare Invoices — Catch Every Price Change
Upload two invoices and instantly see every price change, quantity difference, and altered total — before you approve payment. A private invoice comparison tool that reads PDF and DOCX invoices entirely in your browser, so vendor and payment data never leaves your device. Included in Pro — €9.99/mo.
How to compare invoices
- Upload the first invoice (PDF or DOCX).
- Upload the second invoice.
- Every price change, line item difference, and total discrepancy is highlighted.
Key features
- PDF and DOCX invoice comparison
- Catches every price change, quantity difference, and line item discrepancy
- Page images tab: a pixel-level visual diff of each rendered PDF page, so a swapped logo, altered stamp, or reformatted total shows up even when the text reads the same
- Files never uploaded to any server
- Unlocks with Pro — €9.99/mo
Common uses
- Catch price changes between a vendor quote and the invoice they submit for payment
- Verify the invoice total and line items match the approved purchase order
- Spot unauthorized additions, quantity changes, or fee increases before approving payment
- Reconcile a revised invoice against the original before releasing funds
Frequently asked questions
How do I compare two invoices?
Upload the original invoice and the revised or resubmitted one — PDF and DOCX are both supported. Compare Files extracts the text locally and highlights every changed price, quantity, line item, and total, so you can approve payment knowing exactly what changed.
Can it catch a changed total or an added line item?
Yes. Every numeric change — unit price, quantity, subtotal, tax, and grand total — is highlighted inline, along with any line items that were added or removed between the two versions.
Can I compare invoices visually, page by page?
Yes. Beside the text diff there is a Page images tab that renders each PDF page and highlights pixel-level differences, so a swapped vendor logo, altered stamp, or reformatted total stands out even when the numbers read the same. Visual page diffs are available for PDF invoices; DOCX comparison is text-based.
Is my financial data kept private?
Completely. Invoices are read and compared inside your browser; nothing is uploaded to any server. Vendor names, amounts, and payment details never leave your device, so there is no data-handling risk.
What does it cost?
Invoice comparison is included in Pro — €9.99/mo, with no per-document limits. Comparing plain pasted text is always free.
No AI means no hallucinations
Compare Files uses a deterministic, logic-based engine — not a language model. It reports every change that is actually in your files, and never invents one.
Your files never leave your device. Everything runs in your browser — no uploads, nothing stored.
No AI, so no hallucinations. A deterministic engine reports every real change and never invents one.
No upload, no server wait. Comparisons run locally and keep working offline once the page has loaded.