ENCODE.GURU Forum

CHK Hash Tool

Description

CHK is an advanced file hashing and verification tool with a simple interface and a portable, no-install design. Verify file integrity, find duplicates, and compute checksums quickly — with full Unicode and drag-and-drop support.

Main Features

Verify the integrity of downloaded or transferred files.
Find and remove duplicate files.
Supports a wide range of algorithms: CRC-32, MD5, SHA-256, BLAKE3, xxHash3 and more.
Compute Shannon Entropy for any file (useful for spotting compressed or encrypted data).
Portable: run anywhere, no installation required.
Free to use.

Downloads

Program	Size	BLAKE2s-128
CHK v6.01 Win64 Portable	2.16 MB	53F3E0C9D4DFD37F0EB36F09586591D2
CHK v6.01 Win32 Portable	1.46 MB	65A7A8E4AE1539F0175D3EACE121C94F
Language Packs (Chinese Simplified, Chinese Traditional, English, French, German, Greek, Hungarian, Italian, Japanese, Korean, Spanish)	14 KB	714C6F87364C21F744FC97F1BD1253C0

Instructions: Download the ZIP package and extract to a folder of your choice. Launch chk.exe.

Data Compression Software

Selection of my proprietary software:

Program	Description	Used Algorithm(s)	Release Date	User Interface
BCM v2.03	The ultimate BWT-based file compressor	BWT+CM, preprocessing	2023-02-27	Command line
ULZ v1.02 BETA	An ultra-fast LZ77 compressor	LZ77	2021-03-14	Command line
LZPM v0.18	A highly asymmetric LZ77-based file compressor with Optimal Parsing	LZ77+ARI	2020-08-20	Command line
SQUID v0.03	A fast LZP-based file compressor	LZP+ARI	2018-10-03	Command line
PPMX v0.09	Original, small and fast PPM implementation	PPM	2014-03-24	Command line
BIM v0.03	A high performance lossless image compressor. Currently BIM supports 24-bit BMP, TGA and PNM/PPM images	LPC+CM	2013-09-13	Command line
PIM v2.90	A fully-featured file archiver with smart algorithm selection. In addition, PIM supports extraction for ZIP, JAR, QUAKE PAK, PK3, PK4, QUAD and BALZ archives	PPMD, BALZ, BZIP2, preprocessing	2009-01-01	Graphic
PIMPLE v1.43	Quite old, but extremely powerful compressor with many options to play with	LZP+CM, preprocessing	2006-04-24	Graphic

My open source projects:

CRUSH — An LZ77-based file compressor (Public Domain, 2013)
BALZ — A ROLZ-based file compressor (Public Domain, 2008)
QUAD — A ROLZ-based file compressor (LGPL, 2007)
LZPX — An LZP-based file compressor (GPL, 2005)

Benchmarks

Contact

Check out my professional profile and connect with me on LinkedIn: http://lnkd.in/AXRXBf