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    SaltyRTC JavaScript Client

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    This is a SaltyRTC v1 implementation for JavaScript (ES5+) written in TypeScript.

    ⚠️ Note: The SaltyRTC client libraries are in maintenance mode. They will still receive bugfixes and regular maintenance, but if you want to start using these libraries, be prepared that you will need to take over maintenance at some point in time. (If you are interested in maintaining the libraries, please let us know, our e-mails are in the README, section "Security".)

    The library has been tested with Firefox 45+ and Chromium 49+.


    Via npm

    You can install this library via npm:

    npm install --save @saltyrtc/client msgpack-lite tweetnacl


    Alternatively, copy one of the following files to your project directly:

    • ES2015: dist/saltyrtc-client.es2015.js
    • ES5: dist/saltyrtc-client.es5.js
    • ES5 minified: dist/saltyrtc-client.es5.min.js

    Make sure to manually add the following external dependencies to your project:


    See Docs.


    Install dependencies:

    $ npm install

    To compile the TypeScript sources to a single JavaScript (ES5 / Minified ES5 / ES2015) file:

    $ npm run dist

    The resulting files will be located in dist/.


    1. Preparing the Server

    First, clone the saltyrtc-server-python repository.

    git clone https://github.com/saltyrtc/saltyrtc-server-python
    cd saltyrtc-server-python

    Then create a test certificate for localhost, valid for 5 years.

    openssl req \
       -newkey rsa:1024 \
       -x509 \
       -nodes \
       -keyout saltyrtc.key \
       -new \
       -out saltyrtc.crt \
       -subj /CN=localhost \
       -reqexts SAN \
       -extensions SAN \
       -config <(cat /etc/ssl/openssl.cnf \
         <(printf '[SAN]\nsubjectAltName=DNS:localhost')) \
       -sha256 \
       -days 1825

    You can import this file into your browser certificate store. For Chrome/Chromium, use this command:

    certutil -d sql:$HOME/.pki/nssdb -A -t "P,," -n saltyrtc-test-ca -i saltyrtc.crt

    Additionally, you need to open chrome://flags/#allow-insecure-localhost and enable it.

    In Firefox the easiest way to add your certificate to the browser is to start the SaltyRTC server (e.g. on localhost port 8765), then to visit the corresponding URL via https (e.g. https://localhost:8765). Then, in the certificate warning dialog that pops up, choose "Advanced" and add a permanent exception.

    Create a Python virtualenv with dependencies:

    python3 -m virtualenv venv
    venv/bin/pip install .[logging]

    Finally, start the server with the following test permanent key:

    export SALTYRTC_SERVER_PERMANENT_KEY=0919b266ce1855419e4066fc076b39855e728768e3afa773105edd2e37037c20 # Public: 09a59a5fa6b45cb07638a3a6e347ce563a948b756fd22f9527465f7c79c2a864
    venv/bin/saltyrtc-server -v 5 serve -p 8765 \
        -sc saltyrtc.crt -sk saltyrtc.key \

    2. Running Tests

    To compile the test sources, run:

    $ npm run rollup_tests

    Then simply open tests/testsuite.html in your browser!

    Alternatively, run the tests automatically in Firefox and Chrome:

    $ npm test

    3. Linting

    To run linting checks:

    npm run lint

    You can also install a pre-push hook to do the linting:

    echo -e '#!/bin/sh\nnpm run lint' > .git/hooks/pre-push
    chmod +x .git/hooks/pre-push


    Responsible Disclosure / Reporting Security Issues

    Please report security issues directly to one or both of the following contacts:

    Coding Guidelines

    • Write clean ES2015
    • Favor const over let


    MIT, see LICENSE.md.


    npm i @saltyrtc/client

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