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DevToolKit

File Tools

13 tools

File management tools for compression, extraction, comparison, and file operations. All files are processed locally in your browser.

Professional Hex Dump Viewer

Analyze binary files in a virtualized hex viewer with a real-time data inspector, endianness toggle, and byte-type color coding — fully local.

Reverse File

Reverse files byte-by-byte, line-by-line, or word-by-word with 1MB chunked streaming that handles huge files without loading them fully — local.

Random Binary File Generator

Generate cryptographically random binary files up to 100MB via Web Crypto with entropy histogram, byte distribution, and Shannon score — local.

GZIP Compress & Decompress

Compress and decompress GZIP files via the native Compression Streams API with original filename extraction and ratio stats — all fully local.

LZMA Compress & Decompress

Compress and decompress LZMA files at adjustable levels 1-9 using the Lempel-Ziv-Markov algorithm for tighter ratios than GZIP — fully local.

XZ Compress & Decompress

Compress and decompress XZ files powered by LZMA2 with presets 0-9, CRC64 integrity checks, and magic-byte auto-detection — all processed fully in your browser.

Split & Merge Files

Split large files into parts by byte size or line count and merge them back, with HJSplit-compatible naming and ZIP export — all fully local.

ZIP Split & Reassemble

Split oversized ZIP archives into byte-level parts sized for email, FAT32, or cloud limits, then reassemble them losslessly — all fully local.

TAR Archive & Extract

Create and extract TAR archives including .tar.gz and .tgz with a file explorer view, per-file downloads, and batch ZIP export — fully local.

RAR Extractor

Extract RAR4 and RAR5 archives in your browser via the official unrar WASM engine — preview contents, unlock passwords, save files or all as ZIP.

File Type Detector

Identify a file's true format from magic bytes, not its extension, with confidence scoring, MIME lookup, and hex signature display — fully local.

ZIP Compress & Extract

Create ZIP archives from multiple files or extract existing ones with Deflate levels 0-9, per-file downloads, and structure preview — local.

Bzip2 Compress & Decompress

Compress and decompress files with the Bzip2 Burrows-Wheeler block-sorting algorithm for better ratios than GZIP on text-heavy data — fully local.