Differino vs XKit Document Compare

Differino compares PDF, DOCX, and TXT documents and displays changes side by side. Users can review revisions in visual or text comparison modes. For scanned or image-based PDFs, OCR-assisted extraction and rendered page differences help surface changes. Each file can be up to 45 MB. The free plan includes one comparison, 24-hour share links, watermarked PDF exports, and 14-day retention for uploads and results. One-time credit packs provide additional comparisons with no-expiry credits and watermark-free exports; Pro items are retained for 365 days. The service also offers a REST API and an MCP server for Claude, Cursor, and other compatible clients. Differino states that data in transit is encrypted with TLS 1.3 and stored data with AES-256. It describes use cases including contract review for legal and business teams, and report review for finance, audit, and operations. The finance page says it focuses on document comparison rather than native spreadsheet diffing.

XKit Document Compare is a free web tool for comparing Word, PDF, and text files. It places original and revised documents side by side, highlighting additions in green and deletions in red. Word-by-word comparison can reveal small edits inside paragraphs. Users can upload files or paste text, including DOCX, DOC, text-based PDF, and TXT, and can compare different supported formats. The page says Mammoth.js extracts Word text and PDF.js extracts PDF text in the browser, so files are not uploaded for processing. XKit’s privacy policy says tool inputs, files, and processed data are not collected or stored, although anonymous website usage information and cookies may be used. The tool compares text rather than visual formatting and does not produce redline output. Scanned PDFs need OCR first; tables and lists become text, and documents over 100 pages may take longer.