---
home: true
heroText:
tagline:
# Bringing JavaScript to the Polkadot world.
# actionText: Repository Overview
# actionLink: /REPOS.md
features:
- title: Keyring
  details: Manage user keys allowing for signing, encryption and decryption.
- title: Utilities
  details: Various user utilities to work with data and perform check on it.
- title: Crypto
  details: A thin and easy-to-use wrapper around cryptographic and hashing libraries.

footer: Apache-2 Licensed | Copyright © 2017-2019 polkadot-js authors and contributors
---

## Welcome

Various useful utility functions that are used across all projects in the [@polkadot](https://polkadot.js.org) namespace. It provides utility functions with additional safety checks, allowing not only for consistent coding, but also reducing the general boilerplate.

::: tip Examples
In a rush and just want examples? [Jump right in](/examples/keyring/) and get a handle on using the various components in your projects.
:::

## Available packages

It is split up into a number of internal packages, namely utilities -

- [keyring](keyring/README.md) Keyring management
- [util](util/README.md) General utilities
- [util-crypto](util-crypto/README.md) Crypto and hashing utilities

## The Polkadot Project

You can read more about the Polkadot Network at [https://polkadot.network/](https://polkadot.network/)

## Github repositories

You can find the Polkadot repositories at:

- [https://github.com/polkadot-js](https://github.com/polkadot-js)
- [https://github.com/paritytech/polkadot](https://github.com/paritytech/polkadot)
- [https://github.com/paritytech/substrate](https://github.com/paritytech/substrate)

This documentation is generated from [https://github.com/polkadot-js/common](https://github.com/polkadot-js/common)

## Contributing

Contribution to Polkadot JS Common are more than welcome. You can [report issues](https://github.com/polkadot-js/common/issues/new) and [log feature requests](https://github.com/polkadot-js/common/issues/new).