quick-md5check 1.0.0

Multi-threaded MD5 checksum generator and verifier

Quick_md5check

Multi-threaded MD5 checksum generator and verifier. Computes and verifies MD5 hashes for many files in parallel — significantly faster than single-threaded md5sum on multi-core systems.

Features

• Multi-threaded — configurable thread count via -j/--jobs
• Generate mode — scan a directory and compute MD5 for every file
• Check mode — verify files against an md5sum-format file
• Cross-platform — Windows, Linux, macOS
• Standard output format — compatible with GNU md5sum and md5sum -c
• Progress bar — real-time feedback via tqdm
• Recursive scan — optionally disable with --no-recursive

Installation

pip

pip install quick_md5check

conda

conda install -c your-channel quick_md5check

From source

git clone https://github.com/lg10is1/quick_md5check.git
cd md5check
pip install -e .

Usage

Generate checksums

# Use all available CPU cores
md5check generate ./myfiles -o checksums.md5

# Use 8 worker threads
md5check generate ./myfiles -j 8 -o checksums.md5

# Non-recursive (top-level files only)
md5check generate ./myfiles --no-recursive -o checksums.md5

# Print to stdout
md5check generate ./myfiles

Verify checksums

# Verify using checksum file, auto-detect base dir
md5check check checksums.md5

# Use 8 worker threads
md5check check checksums.md5 -j 8

# Specify base directory for relative paths
md5check check checksums.md5 -C ./myfiles

Compatible with GNU md5sum

# Generate (GNU md5sum format)
md5sum myfiles/* > checksums.md5

# Verify with md5check
md5check check checksums.md5

# Generate with md5check, verify with GNU md5sum
md5check generate ./myfiles -o checksums.md5
md5sum -c checksums.md5

Output format

Standard md5sum format — one entry per line:

d41d8cd98f00b204e9800998ecf8427e  path/to/empty.txt
900150983cd24fb0d6963f7d28e17f72  path/to/hello.txt

Development

Run from source

python -m md5check generate ./tests/data -j 4

Build

# Install build dependencies
pip install build

# Build wheel and source distribution
python -m build

License

MIT