Most document comparison tools upload your files to their servers. DocxLens runs 100% in your browser — your contracts, legal files, and sensitive documents stay completely private.
Drop your files here
or click to browse · PDF, DOCX, XLSX, CSV, JSON, TXT, code
No account. No upload to servers. Works offline once loaded.
Loading PDF · DOCX · XLSX processors…
All major document formats supported. No plugins, no extensions, no signup.
Compare PDF files including scanned documents. Tesseract OCR automatically extracts text from image-based PDFs.
Full text extraction from .docx and .doc files. Compare contract versions, reports, policies and more.
Compare spreadsheets sheet by sheet. Cell values, formulas results, and all data columns are compared.
Syntax-aware line diff with word-level highlights. Supports JS, TS, Python, Go, Java, PHP and more.
All documents displayed as synchronized columns with scroll lock. Differences visible at a glance.
Every file is processed in your browser using WebAssembly. Zero data sent to any server. Works offline.
Drag and drop up to 5 files, or click to browse. PDF, Word, Excel, CSV, JSON, and code files all supported.
Select which document is the baseline. Every other document will be compared against it.
Added lines highlighted in blue, removed lines in red, word-level changes marked inline across all columns.
Download a plain-text diff summary with line numbers and change types for record-keeping or sharing.
Whether you compare contracts, spreadsheets, or config files — DocxLens handles it.
Yes, completely free with no hidden limits. No account required.
Absolutely. All processing happens in your browser using WebAssembly. Your files are never uploaded to any server.
Yes. DocxLens uses Tesseract OCR to automatically extract text from image-based or scanned PDFs when no text layer is detected.
Each file can be up to 20MB. You can compare up to 5 documents at a time.
Once the page has loaded and processors initialized, yes — PDF, Word and Excel extraction will work without an internet connection.
DocxLens uses the Myers diff algorithm (the same used by Git) for line-level differences, and word-level diff for inline changes within lines.
Yes — up to 5 documents simultaneously. You choose which document is the reference baseline.
PDF, DOCX, DOC, XLSX, XLS, CSV, JSON, TXT, MD, and 15+ code file types including JS, TS, Python, Go, Java, PHP and more.
No account. No upload. 100% private. Works in your browser.
PDF · DOCX · XLSX · CSV · JSON · Code · and more