Fileduel - Compare files

About Fileduel - Compare files

FileDuel puts two files side by side and shows you exactly what changed — every added line, every deleted word, every modified cell. No guesswork, no scrolling back and forth manually.

Whether you're reviewing a contract redline, reconciling two Excel reports, tracking changes in a code file, or comparing scanned documents — FileDuel handles it in seconds.

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WHAT YOU CAN COMPARE
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📄 Text & Documents — .txt, .docx, .md, XML, code files, EDI, and more
📊 Excel Spreadsheets — compare cells, formulas, and sheet structure across .xlsx files
📑 PDF Files — extract and compare text content across pages (Beta)
📷 Photos & Scans — photograph a printed document and compare against another

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HOW IT WORKS
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1. Pick File A and File B — from your device or paste text directly
2. Tap Compare
3. See every change highlighted — added lines in green, removed in red, modified in amber

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KEY FEATURES
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✦ Word-level and character-level diff — see exactly which words changed, not just which lines
✦ Split view and unified view — choose the layout that works for you
✦ Portrait and landscape support — full screen real estate in any orientation
✦ Excel sheet mapping — match sheets across two files, column-by-column comparison
✦ Formula diff — see what Excel formulas changed, not just cell values
✦ PDF page navigation — jump to changed pages instantly
✦ Find in diff — search within your comparison results
✦ Export results — share as HTML, CSV, or JSON
✦ Scroll sync — both panes move together for easy line-by-line review
✦ Dark mode — full dark theme that's easy on the eyes

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100% ON-DEVICE PRIVACY
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Your files never leave your phone. FileDuel runs entirely on-device — no uploads, no cloud processing, no accounts required. What you compare stays on your device, period.

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BUILT FOR
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→ Legal & compliance teams reviewing contract versions
→ Finance teams reconciling Excel reports
→ Developers comparing config files and code
→ Writers tracking document revisions
→ Anyone who needs to know exactly what changed between two versions of anything

FileDuel. Two files. Every change.