QuickLZ compression for ByteStrings http://github.com/thoughtpolice/hs-quicklz

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GPL-2 licensed by Austin Seipp
Maintained by mad.one@gmail.com

Fast compression for Haskell ByteStrings

This library implements Haskell bindings to QuickLZ, a fast compression library. The interface is very simple:

compress    :: ByteString -> ByteString
decompress  :: ByteString -> ByteString
decompress' :: ByteString -> ByteString -- overlapping decompression

As the name states, QuickLZ is fast - at both compression and decompression. Per their own benchmarks, at compression level 1, QuickLZ 1.5.0 has a compression speed of 308Mbyte/s, and a decompression speed of 358Mbyte/s (their benchmarks, Core i7 920.)

travis-ci.org results: Build Status


Just use cabal:

cabal install quicklz

Join in

File bugs in the GitHub issue tracker.

Master git repository:

  • git clone https://github.com/thoughtpolice/hs-quicklz.git


See AUTHORS.txt.


GPLv2. See LICENSE.txt for terms of copyright and redistribution.


This package has some benchmarks and tests associated - I would like to expand the benchmarks to include bigger data sets in the future.

There is currently only an interface for strict ByteStrings.

I would like to implement the streaming mode functionality sometime in the future, perhaps tying it to John Millikin's enumerator package.

Depends on 2 packages:
Used by 1 package:
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