Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.

Free Lossless Image Format

Free Lossless Audio Codec

JNI binding for Zstd

CD image processing suite with optimized lossless encoders in C#

SimplE Lossless Audio

JPEG XL image format reference implementation

JavaScript FLAC encoder, decoder

A C++ compression program based on Huffman's lossless compression algorithm and decoder.

Data Compression using Arithmetic Encoding in Python

Java rewrite of Sela lossless audio codec

An arithmetic coder for Rust.

compute entropy of an image, text; encode/decode text with huffman coding, LZW, LZ77; quantizatize image, signal

🔧 Arithmetic coding algorithm implemented in Node.js, both API and CLI support. 算术编码 npm 包，支持 API 调用和 CLI。

Lossless compression implementation in Java

A clone of TTA Lossless Audio Codec

A Java program that implements (4) four lossless text compression techniques for ASCII Text and compares compression ratio.

Huffman coding applied on images to obtain lossless image compression

Image compression and decompression using LZW written in java

A streaming LZ predictor compression tool

Reversible permutation of the characters of a string, which can be used for lossless data compression based on block sorting.

Lossless Image Compression and Transmission in Matlab

A small web app for lossless text compression

Lossless compression using Run-Length

Ravdec is a module written in python, which is based on a Lossless Data Compression Algorithm designed by Mr. Ravin Kumar on 19 September, 2016.This compression algorithm have a fixed compression ratio of 1.1429 in all possible cases, It accepts data of following format: alphabets,numbers, and symbols.It can be used where the machine generates data at a very fast rate, that it became difficult for other algorithms to calculate the probability of a symbol, as data keeps on getting large, and is transmitted over the network with a much faster rate. In this case also, the above module, and algorithm gives the same compression ratio.

LZS lossless compression algorithm with match search using hash table

University Project ( Class: Audio Video Coding )

ImageCodec

Assignments for the Audio Video Codification course.