c-blosc ☆

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Description:
Blocking, shuffling and loss-less compression library

Type: Formula | Latest Version: 1.21.6@0 | Tracked Since: Dec 17, 2025

Links: Homepage | @Blosc2 | formulae.brew.sh

Category: Developer tools

Tags: compression library big-data scientific-computing c-library

Install: brew install c-blosc

About:
C-Blosc is an extremely fast, multi-threaded, lossless data compression and decompression library. It features optimized shuffle and bit-shuffle filters that significantly improve compression ratios for numeric data. Its primary value is achieving high throughput, often approaching memory bandwidth limits, making it ideal for scientific and big data applications.

Key Features:

Extremely fast multi-threaded compression
Optimized shuffle filters for numeric data
Cache-friendly blocking mechanism
Pluggable codecs (LZ4, Zstd, Zlib)

Use Cases:

Accelerating I/O in scientific computing frameworks
In-memory compression for big data analytics
Optimizing storage for large numerical datasets

Alternatives:

Zstandard – Zstandard offers higher compression ratios but is generally single-threaded by default, whereas C-Blosc prioritizes multi-threaded throughput.
LZ4 – LZ4 focuses on extreme decompression speed, but C-Blosc adds blocking and shuffling layers specifically tuned for structured array data.

License: BSD-3-Clause

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

Version History

Detected	Version	Rev	Change	Commit