Various JavaScript projects like hterm and Secure Shell

Clone this repo:
  1. 553ac55 nassh: FAQ: note CWS sign in requirement for dev versions by Mike Frysinger · 2 days ago master
  2. 691bd9b hterm: convert to POSIX shell by Mike Frysinger · 2 days ago
  3. 08bad43 hterm: add a user-css-text field by Mike Frysinger · 3 days ago
  4. 3c836e6 nassh: options: increase display string size by Mike Frysinger · 3 days ago
  5. 74b1931 nassh: FAQ: link in all the OSC 52 helper files by Mike Frysinger · 5 days ago


This repository contains the libdot JavaScript library and some web applications that make use of it.

The official copy of this repository is hosted at

There is also a mirror on github at Keep in mind that this mirror may occasionally be behind the official repository.

All changes must go through the Gerrit code review server on Github pull requests cannot be accepted. Please see the document in this directory for the details.

Top level directories

  • libdot/ is a small set of JS libraries initially developed as part of hterm, now available as shared code. It provides a base layer for web applications. The code is intended to work in any modern browser, in either a plain web page or a “privileged” environment such as a Chrome platform application or Firefox extension. In practice, it's only been put to use in Chrome platform applications so far.

  • hterm/ is a JS library that provides a terminal emulator. It is reasonably fast, reasonably correct, and reasonably portable across browsers.

  • nassh/ is the Secure Shell Chrome App (currently a “v1.5” app, soon to become a “v2” or platform app) that combines hterm with a NaCl build of OpenSSH to provide a PuTTY-like app for Chrome users.

  • ssh_client/ is the NaCl port of OpenSSH. It is used by nassh to create the Secure Shell App.

  • wash/ is a library for cross-origin virtual filesystems, similar to the Plan 9 filesystem. This directory also contains a simple bash-like shell environment for exploring these filesystems. The code in this directory is a work-in-progress.