Awesome Open Source
Awesome Open Source

⚠️ This application is not actively maintained any more.

Fether was originally developed on top of Parity Ethereum which transitions to Open Ethereum, more info here. As a result, Parity Technologies will not maintain actively Fether anymore.

Parity Fether

Parity Fether - a decentralised, light client-based wallet

» Download the latest release «

About Parity Fether

Parity Fether aims to be the lightest and simplest decentralized wallet. It supports Ether and ERC-20 tokens, and runs on top of Parity Ethereum light client. This allows smooth synchronization and interaction with the Ethereum blockchain, in a decentralized manner.

By default, Fether will launch its embedded Parity Ethereum light client. You can also separately launch your Ethereum client and Fether will automatically connect to it, as described in the Fether FAQ.

Parity Fether interacts with the light node using @parity/light.js, a Javascript library specifically crafted for wallets to connect with light clients.

Parity Fether is licensed under the BSD 3-Clause, and can be used for all your Ethereum needs.

If you run into problems while using Parity Fether, first check out the FAQ on our wiki and feel free to file an issue in this repository or hop on our Gitter or Riot chat rooms if you have any question. We are glad to help!

For security-critical issues, please refer to the security policy outlined in


Parity Fether

Join the chat!

Get in touch with us on Gitter: Gitter

Official website: | Be sure to check out our Wiki for more information.

Install and start Parity Fether using binaries


  • Download the .dmg file.
  • Double click on it to install Fether.


  • Download the .exe file.
  • Double click on it to install Fether.
  • Fether will be added to the program menu.


Using the AppImage (any distro)

  • Download the .AppImage file.
  • Make it executable chmod +x /path/to/fether-x.x.x-x86_64.AppImage.
  • Launch it /path/to/fether-x.x.x-x86_64.AppImage.

Using the binary (any distro)

  • Download the .tar.xz file.
  • Unarchive it tar xf fether-x.x.x.tar.xz.
  • Launch it ./fether-x.x.x/fether.

Debian installer (Ubuntu, Linux Mint..)

  • Download the .deb file.
  • Double click on the file to install Fether.
  • Fether will be added to the program menu.

Security warning

  • Don't run Fether as root

  • Beware of suspicious symlinks called fether-x.y.z-x86_64.AppImage.home

This attack vector applies to any AppImage application. It consists of crafting a .home file/folder to be used as the home folder by an AppImage application. The danger resides in the fact that this .home file could be a symlink somewhere on the user's computer. The AppImage would be using this new location as a home folder, in a non-transparent way. Running the application as root might damage a system, for example, by overflowing the /boot partition.

Build from sources

Install dependencies


Install Xcode Command Line Tools, NVM, Node.js latest LTS, Yarn, and Git

xcode-select --install;
curl -o- | bash;
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/" ] && \. "$NVM_DIR/"  # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"  # This loads nvm bash_completion
echo -e "Installing Node.js latest LTS version";
nvm install --lts
echo -e "Switching to use Node.js latest LTS version";
nvm use --lts;
brew install yarn --without-node;
brew install git --verbose;
brew upgrade git --verbose;

Linux and Windows (Git Bash)

Install Node.js 10.x, Yarn, Git, and increase amount of inotify watchers

sudo apt update;
sudo apt install -y git nodejs npm curl;
curl -sL | sudo -E bash -;
apt-get install -y nodejs;
sudo ln -s /usr/bin/nodejs /usr/bin/node;
curl -sS | sudo apt-key add -;
echo "deb stable main" | sudo tee /etc/apt/sources.list.d/yarn.list;
sudo apt-get update && sudo apt-get install yarn;
sudo ln -s /usr/bin/yarn /usr/local/bin/yarn;
yarn global add windows-build-tools;

Clone this repo

git clone
cd ./fether
yarn install

Build and run

Build this repo and run

yarn electron

Build binaries

yarn package

Run with live reload for development

yarn start

Build binaries for production

General Notes:

  1. Alternative to yarn; yarn build; DEBUG=electron-builder yarn release --mac; is to just run yarn package and then run the open "./packages/fether-electron/dist/mac/Parity" (i.e. no need to install)

  2. Publishing a new release to GitHub is performed by a maintainer of the repository. In this case you need to obtain the GH_TOKEN from GitHub settings and add it using export GH_TOKEN="..." to ~/.bashrc and then run source ~/.bashrc. If you get an error that the GH_TOKEN is missing and you are only building the binary but not publishing, then just ignore the error.


Build and run binaries (i.e. .dmg) for production on Mac of a specific remote branch

git checkout INSERT_BRANCH_NAME;
rm -rf ./packages/fether-electron/dist/
rm -rf /Applications/Parity\
yarn; yarn build; DEBUG=electron-builder yarn release --mac;
open ./packages/fether-electron/dist/Parity\ Fether-0.3.0.dmg


Build and run binaries (i.e. .deb) for production on Linux

Note: If you want to save time building, then first edit electron-builder.json so that it only builds a single binary like .deb instead of all of them

sudo rm -rf /opt/Parity\ Fether;
rm -rf ~/.config/Electron;
rm -rf ~/.config/fether;
rm -rf ./packages/fether-electron/dist/;
sudo rm /usr/local/bin/fether;
sudo apt remove -y fether;
yarn; yarn build; DEBUG=electron-builder yarn release --linux
sudo apt install -y ./packages/fether-electron/dist/fether_0.3.0_amd64.deb


Build and run binaries (i.e. .exe) binary for production on Windows

rm -rf /packages/fether-electron/dist;
yarn; yarn build; DEBUG=electron-builder yarn release --win;
./packages/fether-electron/dist/Parity\ Fether-0.3.0.exe

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