A webapp which uses WebRTC and Javascript to test wether or not your STUN or TURN server is working.
Github: https://github.com/webrtc/samples/tree/gh-pages/src/content/peerconnection/trickle-ice
An online server that generates different kinds of random data for testing and development - integers, sequences, phone numbers, credit card numbers, names... you name it, they generate it. Has a REST API, 1k hits/month, request a free API key.
Mimesis is a package for Python, which helps generate big volumes of fake data for a variety of purposes in a variety of languages. The fake data could be used to populate a testing database, create beautiful JSON and XML files, anonymize data taken from production and etc.
This python package provides a template for other python packages. The aim is to serve as a live, working template that can be explored visually by humans to understand and perhaps copy/paste from. In other words, this rain serves as a living, dynamic alternative to static documentation. This template covers these topics.
An open source speed testing web app written in HTML5 and PHP.
testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as some cryptographic flaws. Clear human-readable and machine-readable outputs. No installation needed, uses only bash. Test any SSL/TLS enabled service on any port.
SipChip™ detects most common date rape drugs including roofies, xanax, and valium in as fast as 30 seconds, with 99.3% accuracy. Two lines means you’re in the clear. One line means your drink is drugged. Don't drink it.
Scans webpages for dead hyperlinks. Can analyse unlimited number of pages. Use this to figure out which of my bookmarks are 404?
A website that answers a single question: is website /foo/ down for everyone on the Net, or is it just you?
Determines what version of a web app that it already knows about is run by comparing hashes of certain files with precomputed hashes from known versions. Designed to be low-bandwidth, fast, and automatable. Runs as a stand-alone tool or can be included as a Python module in other software.
A basic framework for forcing heap overflow vulnerabilities in the Linux kernel. This is for the purpose of learning to write heap overflow exploits in the Linux kernel as well as for developing the techniques to find and exploit them. It is entirely possible that this library may destabilize the kernel so practice on a virtual machine that you can revert to a known-stable state when you're done.
This company sells conductive fabrics, woven not out of fiber but very, very fine wires. They seem ideal for sourcing primary components for building shielding - say, you're constructing an RF testing facility and you want to minimize leakage (or intrusive external signals). Or you're building yourself a Faraday cage for some reason.
Enter a regular expression and some test data, and you can interactively debug and develop regular expressions in realtime for just about any programming language.
XML XPath development formatting correctness validation debugging extraction testing
This website generates random JSON documents, suitable for use as test data or learning how to write and interface with various APIs.
A website that takes the entire William Gibson corpus and generates cut-up style lorem ipsum text.
The Test Call is the homepage of a free (and legal!) service that offers some telephony debugging services, such as echoback (say something, it records it and plays it back), DTMF identification, a 4KHz sweep for audio quality, and caller ID checking.