ABDiff helps you understand exactly what changed between files, then act on it. Compare text, PDFs, spreadsheets, images, videos, folders, and binary formats in one fast local tool, with no uploads and no cloud processing. A native macOS alternative to Araxis, Beyond Compare, DiffMerge, Kaleidoscope, Meld, and WinMerge—with support for PDFs, spreadsheets, images, videos, folders, and binary formats in a single application. Review code and text changes faster: - Spot edits in source code, documentation, configuration files, and other text with word-level highlighting. - Choose side-by-side, unified, or connector layouts to match the review. - Resolve Git merge conflicts safely in a dedicated three-way merge view. Compare documents and data: - PDF diff shows visual changes between document revisions and can compare extracted text. - Table diff makes CSV, TSV, TAB, TXT, XLS, and XLSX changes readable without manual inspection. - Bank statement diff verifies changes across CAMT.053 XML, OFX/OFC/QFX/QBO, QIF, MT940/STA, Norma 43, PDF, and spreadsheet exports. Understand binary changes: - Find exactly what changed inside binary files instead of treating them as opaque blobs. - Inspect supported formats as structure trees linked to raw hex bytes. - Analyze executables, archives, certificates, databases, PDFs, XLSX files, images, media files, and network captures. Review visual media: - Detect image changes with split, crossfade, change boxes, difference maps, SSIM, and Delta E color analysis. - Compare videos frame by frame on a synchronized timeline with shared playback, zoom, and pan. Compare entire projects: - Review folder trees by relative path and navigate changed files quickly. - Copy files left or right, move items to Trash, filter hidden files, and apply ignore patterns. Fit into your existing workflow: - Open comparisons from Finder, Git, or the abd command-line tool. - Use "abd integrate" to integrate ABDiff with Git, Fork, JetBrains IDEs, SourceTree, and Tower. - Keep work private: no telemetry, no file uploads, and no cloud processing.