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CK
CompressKitLossless Compression Library
CompressKit provides classic lossless compression algorithms in C++17. Read the implementations, run the same inputs through each algorithm, and verify round-trip correctness.
C++17CMake
Algorithms
Huffman Coding
Optimal prefix codes based on symbol frequency. The classic approach to lossless compression.
Learn MoreFast Speed
Arithmetic Coding
Entire message encoded as a single number. Achieves entropy limit for maximum compression.
Learn MoreHigh Compression
Range Coder
Integer-based arithmetic coding. Production-ready balance of speed and compression.
Learn MoreFast + High
Run-Length Encoding
Simple and fast compression for repetitive data. Often used as preprocessing.
Learn MoreVery Fast
📊 Benchmarks
Performance benchmarks across all algorithms. Compare speed and compression.
Quick Start