cksfv ☆

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Description:
File verification utility

Type: Formula | Latest Version: 1.3.15@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: checksum verification integrity sfv crc32 file-validation

Install: brew install cksfv

About:
cksfv is a command-line utility for verifying file integrity using CRC32 checksums. It creates and checks SFV (Simple File Verification) files to detect corruption caused by transmission errors or storage issues. The tool provides a straightforward way to ensure data consistency across file transfers and archives.

Key Features:

Creates and verifies SFV checksum files
Fast CRC32 calculation for large files
Recursive directory processing support
Simple command-line interface
Cross-platform compatibility

Use Cases:

Verifying file integrity after downloads or transfers
Creating checksum manifests for archival purposes
Batch verification of multiple files using SFV lists

Alternatives:

md5sum – Uses MD5 instead of CRC32; built into most Linux systems but less efficient for simple verification
sha256sum – Provides stronger cryptographic hashing but slower than CRC32 for non-security-critical verification
par2 – Includes verification plus repair capabilities, but more complex and resource-intensive

License: GPL-2.0-or-later

Bottles available for: arm64_tahoe, arm64_sequoia, arm64_sonoma, arm64_ventura, arm64_monterey, arm64_big_sur, sonoma, ventura, monterey, big_sur, catalina, arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit
Sep 12, 2025 8:10pm		0	VERSION_BUMP	0a00ac92