The base64-bytestring package

[Tags:bsd3, library, test]

Fast base64 encoding and deconding for ByteStrings

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Dependencies base (==4.*), bytestring (==0.9.*) [details]
License BSD3
Copyright 2010 Bryan O'Sullivan
Author Bryan O'Sullivan <>
Maintainer Bryan O'Sullivan <>
Stability Unknown
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Source repository head: git clone
head: hg clone
Uploaded Sun Aug 7 04:44:14 UTC 2011 by BryanOSullivan
Distributions Arch:, Debian:, Fedora:, FreeBSD:, LTSHaskell:, NixOS:, Stackage:, Tumbleweed:
Downloads 129660 total (33 in the last 30 days)
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Status Docs uploaded by user
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Maintainer's Corner

For package maintainers and hackage trustees

Readme for base64-bytestring

Readme for base64-bytestring-

Fast base64 support

This package provides a Haskell library for working with base64-encoded data quickly and efficiently, using the ByteString type.


This library is written in pure Haskell, and it's fast:

  • 250 MB/sec encoding

  • 200 MB/sec strict decoding (per RFC 4648)

  • 100 MB/sec lenient decoding

Get involved!

Please report bugs via the github issue tracker.

Master git repository:

  • git clone git://

And a Mercurial mirror:

  • hg clone

(You can create and contribute changes using either Mercurial or git.)


This library is written and maintained by Bryan O'Sullivan,