Capture the source
Select text or focus a filled field, then capture it from the popup, context menu or keyboard shortcut.
A second check in one click
Paste with confidence.
PasteProof helps you catch copy, paste and typing mistakes before you submit a form, send information or finish an important task.
Local comparisonTemporary captureNo analytics
PasteProofComparison result
Exact match
CapturedINV-2048-AX
DestinationINV-2048-AX
Compared locally in your browser
Oneactive capture at a time
Zeroexternal network requests
Fourclear comparison outcomes
How it works
A tiny workflow for avoiding costly mistakes.
Move to the destination
Paste or type the value wherever it needs to go, even on another tab or website.
Verify in one click
PasteProof reports an exact match, formatting-equivalent match, uncertain comparison or mismatch.
Private by design
Your values stay in your browser.
PasteProof reads a selected value or focused field only after you activate it. The active capture is temporary, comparisons happen locally, and the current version contains no advertising, analytics or external data transfer.
Read the complete privacy policy →✓Explicit activationNothing is captured until you ask.
✓Automatic expiryYour active capture removes itself.
✓Sensitive-value blockingCommon passwords, OTPs and card numbers are refused.
Made for everyday accuracy
Useful whenever a small value matters.
PasteProof compares common text, numbers, currencies, dates, email addresses, phone numbers and identifiers.
Invoice totalsReference numbersEmail addressesDates and phone numbersBusiness identifiersForm-to-form transfers
PasteProof for Chrome