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https://github.com/jamaljsr/polar

One-click Bitcoin Lightning networks for local app development & testing
https://github.com/jamaljsr/polar

bitcoin bitcoind c-lightning docker electron lightning lightning-network lnd polar react

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One-click Bitcoin Lightning networks for local app development & testing

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README 

        
# Polar



> One-click Bitcoin Lightning networks for local app development & testing



[![Actions Status](https://github.com/jamaljsr/polar/workflows/CI/badge.svg)](https://github.com/jamaljsr/polar/actions)

[![codecov](https://codecov.io/gh/jamaljsr/polar/branch/master/graph/badge.svg)](https://codecov.io/gh/jamaljsr/polar)

[![Crowdin](https://badges.crowdin.net/polar/localized.svg)](https://crowdin.com/project/polar)

[![GitHub license](https://img.shields.io/github/license/jamaljsr/polar.svg)](https://github.com/jamaljsr/polar/blob/master/LICENSE)

[![GitHub release](https://img.shields.io/github/release/jamaljsr/polar.svg)](https://GitHub.com/jamaljsr/polar/releases/)





  

  

    View a short video demo

  




## Purpose



Polar was built to help Lightning Network application developers quickly spin up one or more networks locally on their computers.



With Polar you can:



- Create a regtest Lightning Network in just a few clicks

- Connect from your app to the lightning nodes via RPC

- Add more nodes using drag & drop

- Start and stop individual nodes

- Open & Close Channels

- Create & Pay Lightning Invoices

- Launch a terminal in each bitcoin/lightning node

- View streaming logs from each node

- Manually mine new blocks

- Deposit regtest coins into each Lightning node

- Mint, Send & Receive Taproot Assets

- Create & Pay Taproot Asset invoices

- Export and import networks, for sharing with other Lightning developers

- Create you own docker images to use as [custom nodes](https://github.com/jamaljsr/polar/blob/master/docs/custom-nodes.md) (ex: master branch, local fork)



Supported Network Node Versions:



- [LND](https://github.com/lightningnetwork/lnd) - v0.18.3, v0.17.5, v0.16.4, v0.15.5, v0.14.3, v0.13.1

- [Core Lightning](https://github.com/ElementsProject/lightning) - v24.08, v24.05, v24.02.2, v23.11.2

- [Eclair](https://github.com/ACINQ/eclair/) - v0.10.0, v0.9.0, v0.8.0, v0.7.0, v0.6.2, v0.5.0

- [Bitcoin Core](https://github.com/bitcoin/bitcoin) - v28.0, v27.0, v26.0, v25.0, v24.0, v23.0, v22.0, v0.21.1

- [Taproot Assets](https://github.com/lightninglabs/taproot-assets) - v0.4.1, v0.3.3

- [Terminal](https://github.com/lightninglabs/lightning-terminal) - v0.13.995



## Dependencies



Polar requires that you have Docker installed to create the local networks



- On Mac & Windows, you can just install [Docker Desktop](https://www.docker.com/products/docker-desktop)

- On Linux, you need to install [Docker Server](https://docs.docker.com/engine/install/#server).



You will be prompted to install Docker if Polar cannot detect it automatically



⚠️ **Important Docker Notes**



- On Linux, Docker Desktop is currently not supported due to a significant change in how it handles file sharing between host and container (See [#636](https://github.com/jamaljsr/polar/issues/636#issuecomment-1450201391))



## Download



Download Polar v3.0.0 for your OS



- Mac ([dmg](https://github.com/jamaljsr/polar/releases/download/v3.0.0/polar-mac-x64-v3.0.0.dmg))

- Linux ([deb](https://github.com/jamaljsr/polar/releases/download/v3.0.0/polar-linux-amd64-v3.0.0.deb), [AppImage](https://github.com/jamaljsr/polar/releases/download/v3.0.0/polar-linux-x86_64-v3.0.0.AppImage)), [RPM](https://github.com/jamaljsr/polar/releases/download/v3.0.0/polar-linux-x86_64-v2.1.0.rpm))

- Windows ([exe](https://github.com/jamaljsr/polar/releases/download/v3.0.0/polar-win-x64-v3.0.0.exe))



Alternative and older version binaries can be found in the [GitHub releases](https://github.com/jamaljsr/polar/releases)



## Help Translate



Polar's translations are managed on [Crowdin](https://crowdin.com/project/polar). The initial translations of 10 languages were done by machine (Google Translate) and are likely to not be 100% accurate. If you speak multiple languages and wish to help with translations, please feel free to head over to the [project page](https://crowdin.com/project/polar) on Crowdin and submit updated strings. This assistance would be greatly appreciated.



## Development



If you would like to learn how to package Polar from source code or want to fix a bug or add a new feature, please see [CONTRIBUTING](https://github.com/jamaljsr/polar/blob/master/CONTRIBUTING.md) for detailed instructions.



### Commands



| Command         | Description                                                       |

| --------------- | ----------------------------------------------------------------- |

| `yarn`          | install dependencies                                              |

| `yarn dev`      | run the app with react hot reloading and electron live restarting |

| `yarn test`     | run unit tests in watch mode                                      |

| `yarn test:e2e` | run e2e tests                                                     |

| `yarn lint:all` | run typescript and eslint syntax checking                         |

| `yarn package`  | package the app for your OS                                       |



### Tech Stack



- [Node.js](https://nodejs.org/en): nodejs version >= 20

- [Electron](https://github.com/electron/electron/): cross platform desktop app framework

- [Typescript](https://github.com/microsoft/TypeScript): increased productivity with a typed language

- [ReactJS](https://github.com/facebook/react/): declarative UI library for JavaScript

- [Create React App](https://github.com/facebook/create-react-app): minimize build configuration

- [easy-peasy](https://github.com/ctrlplusb/easy-peasy): Redux state management without the boilerplate

- [Emotion](https://emotion.sh/): simplified CSS style composition

- [Ant Design](https://github.com/ant-design/ant-design/): don't reinvent the wheel with UI design

- [react-i18next](https://github.com/i18next/react-i18next): support for multiple languages (english/spanish included)

- [electron-log](https://github.com/megahertz/electron-log): multi-level logging to console and file

- [Prettier](https://github.com/prettier/prettier): keep code format consistent

- [ESLint](https://github.com/eslint/eslint): follow code quality best practices

- [Github Actions](https://github.com/actions): automate builds and testing on Windows/Mac/Linux

- [Renovate Bot](https://github.com/renovatebot/renovate): automate dependency upgrades via GitHub bot

- [Jest](https://github.com/facebook/jest): delightful JavaScript testing

- [React Testing Library](https://github.com/testing-library/react-testing-library): React specific testing utilities

- [CodeCov](https://codecov.io/): maintain quality of unit tests

- [Testcafe](https://github.com/DevExpress/testcafe): End-to-end is important

- [commitlint](https://github.com/conventional-changelog/commitlint): standardize git commit messages

- [standard-version](https://github.com/conventional-changelog/commitlint): automate release versioning and changelog generation