Data compression is the process of storing data in a format that uses less space than the original representation would use. Compressing data can be very useful particularly in the field of communications as it enables devices to transmit or store data in fewer bits. Besides reducing transmission bandwidth, compression increases the amount of information that can be stored on a hard disk drive or other storage device.
There are two main types of compression. Lossy compression is a data encoding method which reduces a file by discarding certain information. When the file is uncompressed, not all of the original information will be recovered. Lossy compression is typically used to compress video, audio and images, as well as internet telephony. The fact that information is lost during compression will often be unnoticeable to most users. Lossy compression techniques are used in all DVDs, Blu-ray discs, and most multimedia available on the internet.
However, lossy compression is not appropriate where the original and the decompression data must be identical. In this situation, the user will need to use lossless compression. This type of compression is employed in compressing software applications, files, and text articles. Loseless compression is also popular in archiving your music. This article focuses on lossless compression tools.
To provide an insight into the quality of software available for Linux, we have compiled a list of 14 best free compression tools. Hopefully, there will be something of interest here for anyone who wishes to maximize their computer and network resources.
Here’s our recommendations. They are all open source goodness.
Let’s explore the 14 compression tools. For each title we have compiled its own portal page, a full description with an in-depth analysis of its features, together with links to relevant resources.
|LZ4||Focused on compression and decompression speed|
|Zstandard||Fast compression algorithm, providing high compression ratios|
|brotli||Generic-purpose lossless compression algorithm|
|lzop||File compressor favoring speed over compression ratio|
|pigz||Parallel implementation of gzip|
|pixz||Parallel, indexed xz compressor|
|gzip||Provides the standard GNU file compression utilities|
|bzip2||Freely available, patent free, high-quality data compressor|
|pbzip2||Parallel implementation of bzip2|
|Lrzip||Achieve very high compression ratios and speed when used with large files|
|lbzip2||Multi-threaded implementation of bzip2, suited for serial and parallel processing|
|XZ Utils||Successor to the Lempel-Ziv/Markov-chain Algorithm compression format|
|plzip||Massively parallel lossless data compressor|
|7-Zip||File archiver with a high compression ratio|
Read our complete collection of recommended free and open source software. The collection covers all categories of software.
The software collection forms part of our series of informative articles for Linux enthusiasts. There's tons of in-depth reviews, alternatives to Google, fun things to try, hardware, free programming books and tutorials, and much more.