hashio

hashio is a checksum and verification tool for files and directory trees.

It can recursively hash content, collect filesystem metadata, verify manifests, emit multiple output formats, and optionally persist results in a local SQLite cache for snapshots and diffs.

Highlights

• Multiple hash algorithms: c4, crc32, md5, sha256, sha512, xxh64
• Output formats: json, txt, and mhl
• Recursive hashing and manifest verification
• Configurable ignorable file patterns
• Metadata-only scans with the null algorithm
• Optional SQLite-backed cache and snapshot diffing

Installation

pip install -U hashio

If your Python build does not include sqlite3, either rebuild Python with SQLite support or install a pre-cache release:

pip install 'hashio<0.4.0'

Quick Start

hashio <PATH> -o hash.json
hashio --verify hash.json

You can also run it directly with uvx:

uvx hashio <PATH>

Documentation

Detailed documentation now lives under docs/:

• Overview
• Getting Started
• Usage
• Configuration
• Cache and Snapshots
• Python API