Compare Text & Documents
Paste two versions — or open two PDFs or Word files — and see exactly what changed, down to the word. Nothing is uploaded.
Find the change they did not mention
A contract comes back “with a few small fixes”. A policy is updated. A colleague sends the “final” version of a report. Reading both versions side by side is slow and unreliable; a diff shows every changed word in seconds, including the ones nobody pointed out.
Comparing PDFs works on their text, so the result is only as good as the extraction: for scanned documents, the OCR reading is what gets compared — see OCR vs text extraction. To keep a document's text for later comparison, save it with PDF to Text or Word to Markdown.
Frequently asked questions
Can I compare two PDFs?
Yes — by their text. Open a PDF on each side and its text is extracted (with OCR for scanned pages) and compared. This finds changed wording, numbers and dates; it does not compare layout, images or formatting. Word documents and Markdown files work the same way.
Why are some lines shown as changed rather than removed and added?
When a line is edited, it is shown once on each side with only the changed words highlighted, so “30 days” → “45 days” is obvious instead of hidden in two full lines. Lines that are genuinely new or deleted are shown as added or removed.
What do “Ignore case” and “Ignore spacing” do?
They decide what counts as a difference. Ignore case treats “Total” and “total” as the same; ignore spacing treats runs of spaces and tabs, and spaces at the ends of lines, as equal. The text itself is shown unchanged.
Is anything uploaded?
No. Both versions stay in your browser — useful when you are comparing drafts of a contract, a policy or anything confidential.
What is the .diff download?
A unified diff, the standard format used by Git and the diff command. It can be attached to a review, applied as a patch, or opened in any code editor with diff highlighting.
Is there a size limit?
There is a time limit: if two texts are so long and so different that comparing them would take more than a few seconds, the tool stops and says so rather than freezing the page. Documents of hundreds of pages with ordinary edits compare quickly.
Limitations
- PDFs and Word files are compared by their text only — not layout, images or formatting.
- Text that moved to another place shows as removed in one place and added in the other.
- Very long, very different texts may exceed the few-second comparison limit.
Related tools
- PDF to TextPlain text from any PDF, with OCR for scanned pages.PDF → Text (.txt)
- Word to MarkdownTurn a .docx into clean Markdown — headings, lists, tables, images.Word (.docx) → Markdown (.md), ZIP
- PDF to MarkdownClean Markdown from any PDF, with OCR for scanned pages.PDF → Markdown (.md)
- Markdown to HTMLClean, sanitised HTML from Markdown, with a live preview.Markdown (.md) → HTML
Guides
- OCR vs Text Extraction: Which One Does Your PDF Need?Some PDFs contain text, others only pictures of text. How to tell them apart in ten seconds, and which tool each one needs.
- PDF vs Word vs Markdown - Which Format to Use WhenPDF vs Word vs Markdown compared on fidelity, editability, longevity and collaboration - with head-to-head tables and clear recommendations by scenario.