CHK Hash Tool

CHK v3.83 Screenshot


CHK is an advanced hash tool — a simple application designed to help you verify the integrity of your files, find duplicates and much more!

Main Features

  • Verify the integrity of downloaded/transferred files
  • Find and get rid of duplicate files on your computer
  • Calculate Shannon's Entropy of files
  • Support for all the hashes you'll ever need:
    • Adler32
    • BLAKE2b, BLAKE2bp, BLAKE2s, BLAKE2s-128, BLAKE2sp, BLAKE3
    • CRC16, CRC32, CRC32C, CRC64
    • MD4, MD5
    • RIPEMD-160
    • SHA-1, SHA-1 (Base32)
    • SHA-224, SHA-256, SHA-256 (Base64), SHA-384, SHA-512, SHA-512/224, SHA-512/256
    • SHA3-224, SHA3-256, SHA3-384, SHA3-512
    • Tiger
    • Whirlpool
    • xxHash32, xxHash64
  • Simple interface with full Unicode and Drag&Drop support
  • It's portable - run anywhere without any installation
  • And last but not least - it's FREE!


Program Size BLAKE2s-128
CHK v3.83 Win64 Portable 2 MB 75B48A67EDB2CB07D729C1B55D93B670
Language Packs (German, Italian) 3 KB 1C76D9F051C5539D4F3C67AEDE988F1E
Instructions: Download the ZIP package and extract to a folder of your choice. Launch chk.exe
100% CLEAN award granted by Softpedia

Data Compression Software

Selection of my proprietary software:
Program Description Used Algorithm(s) Release Date User Interface
BCM v1.65 The ultimate BWT-based file compressor BWT+CM 2021-05-22 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


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)




Check out my professional profile and connect with me on LinkedIn:
© 2003—2022 Ilya Muravyov