Small as a mouse, fast as a cheetah and available for free. NetSurf is a multi-platform web browser for RISC OS, UNIX-like platforms (including Linux), Mac OS X, and more.

Found via "Some random thoughts on improving self-hosting of software at home"  http://notes.whatthefuck.computer/1493081100.0-note.html
We claim that Sandstorm mitigates most security bugs in apps, by default. We also claim that Sandstorm is the easiest way ever to deploy small-scale (personal, or corporate-internal) web services.
Understandably, people used to the status quo find these claims hard to believe. It sounds like magic.

On this page, we will explain the two main pieces of "magic" that make it all work:

Fine-grained Containerization
Capability-based Security

Emacs-like editor running in the web browser.

Just what it says.

WaveDrom draws your Timing Diagram or Waveform from simple textual description.
It comes with description language, rendering engine and the editor.
WaveDrom editor works in the browser or can be installed on your system.
Rendering engine can be embeded into any webpage.

A large quantity of published data is available only in the form of plots and it is often difficult to extract numerical data accurately out of these pictures. There are several softwares available to aid this process, but most are either paid, difficult to use or lack some essential features. Also, many of the existing programs work only on a few specific operating systems and require installation by the user. Most programs only support 2D X-Y plots and so it is not possible to work with polar diagrams, ternary diagrams, microscope images or maps. With these issues in mind, WebPlotDigitizer was developed to be an easy to use, free of charge and opensource program that can work with a variety of plot types and images. This program is developed using HTML5 which allows it to run within a web browser and requires no installation on to the user's hard drive.
Distributed under the GNU General Public License Version 3.

Found on John D. Cook's blog
http://www.johndcook.com/blog/2016/04/20/how-to-digitize-a-graph/

Changed URL from http://arohatgi.info/WebPlotDigitizer/ 2019-12-30

Forum discussion SDR hard- and software.

Asciinema (formerly ascii.io) is a free and open source solution for recording the terminal sessions and sharing them on the web.

Web simulation of a slide rule.

Animated web pages based on JavaScript, developed by Smalltalk legend Dan Ingalls.