DifCompare

A professional, lightweight file & folder comparison tool supporting line-by-line difference analysis for text files, Word, Excel, PDF and more formats. It helps developers, editors and proofreaders quickly locate content modifications. Core Features ▸ File Comparison Select two files for left and right panes, start comparison with one click. The app automatically parses file content, compares line by line and highlights all discrepancies: added lines, deleted lines and modified lines are clearly displayed. Character-level highlighting is available to pinpoint every inserted, deleted or revised character. ▸ Folder Comparison Recursively scan two folders and list the difference status of all files: identical, different, exists only on the left, exists only on the right. File size and modification timestamps are displayed, ideal for version comparison and backup verification. ▸ Supported Formats Plain text & code files: .txt, .md, .json, .xml, .csv, .yaml, .html, .css, .js, .ts, .swift, .java, .py, .c, .cpp, .h and over 50 other code & text formats Office documents: Word (.docx), Excel (.xlsx), PDF (.pdf) All formats support mixed Chinese & English text ▸ Difference Navigation Comparison results are displayed side-by-side with a dedicated sidebar navigation panel, featuring: Quick jump to Previous / Next difference Filter mode to show only differing content Difference counter (e.g., Diff 3 of 15) ▸ Premium Membership Benefits Free users may only compare plain text files with a 1MB single-file limit and 10 daily uses. Upgrade to Premium for unlimited access, unlock folder comparison, Word/Excel/PDF support, and remove all file size & usage caps. ▸ Internationalization Fully bilingual Chinese & English UI. Automatically follows system language, with manual language switching available in Settings. ▸ Privacy & Security All file comparison tasks run locally on your device; no file data is uploaded externally, and no network permission is required. Ad-free, zero tracking, no account registration mandatory. Use Cases Code Review – Rapidly inspect code changes Document Proofreading – Compare draft & final versions of contracts and copywriting Data Processing – Spot disparities in CSV, JSON datasets Version Management – Track content changes between folder versions Translation Proofreading – Line-by-line cross-check of source text and translations This file comparison tool makes every single difference instantly visible. Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://xiaobingliu2026.github.io/privacy-policy/compare-en.html