Two documents. Traceable evidence.
Document Contradiction Checker
Compare two documents and review where their claims may conflict, with quotes and source locations.
Compare short English text PDFs, Word .docx files, or pasted text. No account required.
Compare your documents
Try sample documents ↗See a cited finding before you upload
This prepared AcmePay example uses fictional documents. It does not run live AI analysis or represent a customer audit.
Preview the sample report: fees
Potential contradiction: A marketing promise of no fees conflicts with a fee in the terms for the same service.
Document A · Paragraph A002
Send money worldwide with no fees, ever.
Document B · Paragraph B002
A currency conversion fee of 1.5% applies to international transfers. An inactivity fee of $5 per month applies after 12 months without a transfer.
Review the scope and exceptions in both documents before deciding whether these claims conflict.
Read the full fictional report and source documentsHow it works
Find the claim. Check the context.
Add two documents that describe the same service, policy, offer or obligation. Upload text-based PDFs or Word .docx files, paste text, or combine formats. Your documents are checked for readability and limits before payment. Pay US$9 once to start AI analysis; if analysis fails or no report is delivered, you receive a full refund. WikiFix reads the supplied content and looks for statements that may not fit together.
Review each finding alongside its source quotes. A finding includes an explanation and the page or paragraph where each statement appears. You decide whether it represents a real conflict, an unclear definition, or a difference that makes sense in context.
Download the report if you want to keep it. Reports are temporary, and this version does not provide a permanent document archive. The expiry time is shown with your result. You can delete a check before it expires.
Which documents can you check?
Start with two short English documents about the same subject. Compare a marketing statement with service terms, an offer with its accompanying policy, or two departmental descriptions of a shared process. Include relevant definitions and exceptions in the submitted text.
A refund window of thirty days and a limit of fourteen days may conflict when they apply to the same purchase. Different products, effective dates, currencies or jurisdictions can explain a difference. An instant transfer and later settlement may describe separate stages rather than incompatible promises.
The report distinguishes potential contradictions from ambiguities. Source excerpts let you check what was actually written. A suggested fix identifies what needs clarification; it does not change your documents or provide a legal opinion.
Scanned pages, images, password-protected PDFs and complex layouts are unsupported. If the text cannot be read reliably, the check stops instead of producing a report from incomplete input. Live availability and the current limits are shown above the submission button.
Questions before you compare
What is a document contradiction checker?
It compares statements for possible conflicts in meaning. Different wording alone is not a contradiction. WikiFix shows potential conflicts with source quotes for human review; an AI check can miss issues or flag compatible statements.
Does a finding prove a contradiction?
No. AI-generated candidates need review. Exact quotes verify the source location, not the correctness of the model’s interpretation. This is not legal advice.
What if no conflicts are found?
No findings does not establish that the documents are fully consistent. The tool can miss conflicts.
Can I upload a scan or a URL?
English text PDFs, Word .docx documents and pasted text are supported. Older .doc files need conversion to .docx. No OCR, URL fetching or document scripts are run.
Are my documents processed locally?
No. WikiFix processes uploaded files on its server and uses third-party AI services to analyze extracted text. Only submit content you have permission to share. The privacy notice explains processing providers and their data policies.
How long is content kept?
Uploaded PDF and Word files are removed after parsing. Reports expire up to 30 minutes after completion and all temporary content has a maximum age of 45 minutes. Restarting the service can remove reports earlier. AI processing providers have separate retention policies described in the privacy notice. Download any report you wish to keep.
Read the privacy notice before submitting a real document.