Binary Duplicate Finder is a fast, deterministic Linux desktop utility for verifying exact binary duplicates byte-by-byte and detecting near-duplicate filenames across multiple folders. Independent open-source project, not affiliated with or endorsed by any third-party software vendor.

BYTE-BY-BYTE BINARY COMPARE ENGINE • Verifies exact duplicates through a 3-tier binary check: Exact Size bucket -> 4 KB Head + Tail signature -> Chunked Byte-for-Byte stream comparison. • Live telemetry displays scan throughput (MB/s), total files scanned, duplicate groups, and reclaimable bytes.

FILENAME SIMILARITY & HEX DIFF INSPECTOR • Optional SequenceMatcher filename similarity mode (adjustable 50% to 100% threshold) surfaces near-duplicate revisions and versioned documents. • Side-by-side inline inspector previews text, images, and hexadecimal byte dumps with highlighted first-64-byte binary differences between pairs.

SMART AUTO-CHECK, MOVE/DELETE & SCAN PROFILES • Auto-check copies with Keep Oldest, Keep Newest, or Keep Smallest Folder rules, then safely Move Checked to Folder or confirm deletion. • Save exclusion folder patterns, size bounds, similarity presets, and JSON scan history across sessions, with English and Vietnamese interface support.

SUPPORT & DONATE • Created by Thanh Nguyen — https://buymeacoffee.com/thanhnv128b