Diff Pro Max - File Compare

About this app

Diff Pro Max is a professional-grade file comparison tool designed to be easy for anyone to use — no technical expertise required. "What changed?" — answered in seconds. Manually comparing files line by line is slow and error-prone. Diff Pro Max detects and highlights every change automatically. Just drag and drop two files. Text, images, audio, video, PDF, Excel — whatever the format, differences are instantly visible. Sound familiar? • You edited the code, but can't remember exactly what changed • The designer says "I updated it" but you can't spot the difference • You need to verify which version of a document was sent to the client • You're about to deliver, but want to double-check everything Diff Pro Max lets you compare, review, and merge — all in one place. 【Key Features】 ■ Text Compare - Syntax highlighting for 150+ languages - Hunk View and Split View modes - Inline diff for character-level changes - Regex search and quick navigation - Merge mode: select left or right per hunk and save the result [New] ■ Folder Compare - Hierarchical directory tree view - Color-coded file status (added, changed, deleted) - Exclusion patterns to skip unwanted files - Date range filtering for specific periods - Fast performance with 1000+ files ■ Image Compare - Side-by-side visual comparison - Overlay mode for detailed diff - Synced zoom and pan controls ■ Audio Compare - Waveform visualization for visual comparison - Synchronized playback to hear differences - Metadata comparison (format, bitrate, sample rate, etc.) - Supports MP3, WAV, AAC, FLAC and more ■ Video Compare - A/B switching for instant comparison - Synchronized playback mode - Supports MP4, MOV, WebM, AVI, MKV and more ■ Document Compare [New] - Visual comparison for PDF, Word, and PowerPoint - Page-level diff detection with overlay view - Page sync and scroll sync ■ Excel Compare [New] - Cell-level diff for spreadsheets - Color-coded additions, changes, and deletions - Multi-sheet comparison ■ Change Groups (Version Management) [New] - Save file snapshots for version tracking - Organize versions by group - Instantly compare with past versions - Supports all file types: text, image, audio, video, documents, Excel ■ Delivery Package - Extract files for FTP upload efficiently - Preserve directory structure - Auto-detect updated files by date range - Save and reuse settings with presets 【Additional Features】 - Bilingual support (English / Japanese) - Dark mode and Light mode - Intuitive drag & drop interface - Preset manager for frequently used settings - History for quick replay of past comparisons - Multiple export formats (TXT, CSV, HTML, PDF) 【Perfect For】 - Software Engineers — Code diffs, config file merging - Web Designers — Compare design mockups - Video & Audio Creators — Compare edits and mixes - Writers & Editors — Track manuscript revisions - Business Professionals — Manage contract and proposal changes - Students & Researchers — Version control for papers and reports - Project Managers — Delivery data creation and management - Everyone — Track changes in important documents and files 【Pro】$17 one-time purchase - Unlimited comparisons for all modes - Unlimited text merge - Export to CSV, HTML, PDF - Advanced filtering and presets - No watermark Free version includes unlimited text comparison. Other modes allow 3 uses per day.

Major update: the comparison engine has been significantly upgraded. ■ New - OCR for scanned PDFs: scanned documents without a text layer can now be analyzed with on-device OCR to detect differences (fully offline; English, Japanese, German, French). - Tracked-changes view for Word: a redline view showing deletions with strikethrough and insertions with underline, inline in a single document. - Pixel diff for images: visualize the actual differences between two images with red highlights, with an adjustable threshold and fullscreen support. - Comparison report export: save text comparison results as a shareable HTML report. ■ Improved - Excel: inserting a row no longer marks every following row as "changed" (row matching rebuilt). - Fixed Excel dates being displayed as serial numbers (e.g. 44927). - Removed remaining Japanese text from English, German, and French screens. ■ Fixed - Change Review: could not create a second group even after purchase. - Restore Purchases could fail to re-enable the add-on. - Audio comparison: the results panel was not displayed. - Text comparison: "Ignore whitespace" corrupted the displayed text. - Many additional bug fixes and stability improvements.

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1. First observed Aug 8, 2026 · 5:27 PM Free