index.html

---
title: Welcome
layout: default
index: active
description: "Signal K is about publishing a common modern and open data format for marine use. A format for the modern
  boat, compatible with NMEA, friendly to WiFi, cellphones, tablets, and the Internet. A format available to everyone,
  where anyone can contribute."
---

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    <h2>Who We Are</h2>
    <h3>The Free and Open Source universal marine data exchange</h3>
    <p>
      Signal K is about publishing a common modern and open data format for marine use. A format for the modern boat,
      compatible with NMEA, friendly to WiFi, cellphones, tablets, and the Internet. A format available to everyone,
      where anyone can contribute.
    </p>
  </header>
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    <h2>Open Source</h2>
    <p>
      Yup. We publish all source code under the <a href="https://www.apache.org/licenses/LICENSE-2.0"
      target="_blank">Apache License, Verison 2.0</a> and everything else, like protocols and interface descriptions,
      under the Creative Commons <a href="https://creativecommons.org/licenses/by-sa/4.0/" target="_blank">CC-BY-SA</a>
      license.
    </p>
    <p>
      That means that it is open source, but friendly to companies that want to use it in closed source applications or
      hardware. As long as you contribute back we're happy.
    </p>
  </header>
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    <h2>Getting started</h2>
    <ul class="check-list">
      <li>Read the <a href="{{site.baseurl}}/overview.html">overview</a></li>
      <li>Find <a href="{{site.baseurl}}/applications_solutions.html">applications and solutions</a></li>
      <li>Get the source code on <a href="https://github.com/signalk">GitHub</a></li>
      <li>Join the <a href="https://groups.google.com/forum/#!forum/signalk">discussion</a></li>
      <li>Join the <a href="http://slack-invite.signalk.org/">chat</a></li>
      <li>Contact the <a href="mailto:info@signalk.org">developers</a></li>
    </ul>
  </header>
  <header>
    <h2>Contributing</h2>
    <p>
      Interested? Join the discussion at the
      <a href="https://groups.google.com/forum/#!forum/signalk">Google Groups forum</a>!
    </p>
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