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This is a playground to test code. It runs a full Node.js environment and already has all of npm’s 1,000,000+ packages pre-installed, including qrllib with all npm packages installed. Try it out:

qrllib lists no main file and has no index.js, so it can't be directly required. If this is a mistake, please let us know. It may however contain internal files that you can require manually:

// require("qrllib/[??]")

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qrllib v1.2.0

QRL Core Library

PyPI version npm version Build Status CircleCI Codacy Badge MIT licensed

QRL Core Library

WARNING: This is work in progress, changes might not be backward compatible.

This library currently exposes the following functionality:

  • XMSS, XMSS_fast
  • Shake128, Shake256, SHA2_256
  • Hashchain seeds, etc.
  • Helpers: seed generation, address generation, mnemonics

Platform support

Python 3:white_check_mark::white_check_mark::seedling:
Webassembly (JS):white_check_mark::white_check_mark::white_check_mark:



sudo apt -y install swig3.0 python3-dev build-essential cmake ninja-build pkg-config
pip3 install pyqrllib


If you dont have brew yet, we think you should :) Install brew following the instructions here:

Now install some dependencies

brew install cmake python3 swig
pip3 install pyqrllib




sudo apt -y install swig3.0 python3-dev build-essential cmake ninja-build
sudo pip3 install -U setuptools
sudo pip3 install -U pyqrllib


Golang and Java wrappers are currently experimental (By default they are disabled in cmake)

brew install go --cross-compile-common



In order to compile the webassembly and run node.js tests you first need to install CircleCI CLI:

Then run the following command

circleci build --job build_emscripten

This will compile and test the webassembly. Output files will be copied over to tests/js/tmp

You can then run node.js locally using npm.


This library is distributed under the MIT software license, see the accompanying file LICENSE or

Some of the code is based on the xmss-reference implementation that has been released in the public domain by their respective authors.

Most of third party code has been included as git submodules for future reference.

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