WaveShop - Open source audio editor

Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.

TwistedWave - TwistedWave is one of the unique audio editors that allow you to edit your music file online without any installation.

Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!

Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.

Google Forms - Simple web forms from Google.