It also depends what &quot;browser&quot; means to you.  If &quot;Chrome&quot;, then there&#x27;s an entire UNIX toolchain you can run inside Chrome:<p><a href="https:&#x2F;&#x2F;chrome.google.com&#x2F;webstore&#x2F;detail&#x2F;nacl-development-environm&#x2F;aljpgkjeipgnmdpikaajmnepbcfkglfa?hl=en-US" rel="nofollow">https:&#x2F;&#x2F;chrome.google.com&#x2F;webstore&#x2F;detail&#x2F;nacl-development-e...</a>