Leather is the most popular and trusted wallet for apps built on Bitcoin. Connect to apps and manage assets secured by Bitcoin and Bitcoin L2s with battle-tested wallet for the Stacks blockchain.

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Please see our contribution guide

This application is a Web Extension. There is no ability to run it as a standalone web application.

Each child of the src directory represents the script context in which it is ran.

pnpm i

pnpm dev

We bundle a test app to use along with the extension. It gives easy access to the various functions that the extension can do.

In a separate terminal, run:

pnpm dev:test-app

You'll need to add it to your browser of choice. Leather only supports Chromium and Firefox browsers. When you run pnpm dev, it will compile the application to the /dist folder

• Chrome instructions
• Firefox instructions

Several testing scripts are available in package.json.

The integration tests expect the extension to be built prior to running. The extension can be built for tests with the command below.

pnpm build:test

The integration tests use Playwright, which requires the system to have the browsers it needs. The following command installs everything Playwright needs.

pnpm playwright install --with-deps

Note that the installed browsers are tied to the version of Playwright being used, and it may be necessary to run the above command again in some situations, such as when upgrading Playwright or switching branches. Read the documentation for more information.

All integration tests can be run using:

pnpm test:integration

To run a suite of tests you can use:

pnpm playwright test specs/TEST.spec.ts
pnpm playwright test tests/specs --shard=3/8

To get more information when running tests you can pass the --debug flag or the --ui flag to playwright.

When running tests locally you must add the following to your .env file:

WALLET_ENVIRONMENT=testing

Unit tests can be run with vitest using:

pnpm test:unit

Code checks and unit tests can be run simultaneously:

pnpm checks

See instructions on Leather.io to install from source

Alternatively, the following steps can be taken by technical users with the latest version of node installed on their machines.

Run the following from within this repository's root directory if you've pulled it with Git:

pnpm && pnpm prepare && pnpm build

The extension is now built in the ./dist folder.

To build the extension in Firefox mode, the TARGET_BROWSER=firefox variable needs to be set.

pnpm && pnpm prepare && TARGET_BROWSER=firefox pnpm build

Note that when building in a clean environment, some code may vary between this and the submitted build. This is because some variables are set within the scope of the production build's CI.

We consider the security of our systems a top priority. But no matter how much effort we put into system security, there can still be vulnerabilities present.

If you discover a security vulnerability, please use one of the following means of communications to report it to us:

• Report the security issue to our HackerOne program
• Report the security issue directly at security@leather.io

Please note this email is strictly for reporting security vulnerabilities. For support queries, contact contact@leather.io. Your efforts to responsibly disclose your findings are sincerely appreciated and will be taken into account to acknowledge your contributions.

In Q1 2021, Leather partnered with Least Authority, a leading security consultancy with experience in the crypto space, to audit Leather. On April 29th 2021, after addressing the major concerns described in the initial findings, as well as a concluding sign off from the Least Authority team, a final report was delivered.

Download and read the full report here