Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.
LipSurf - "Siri for Chrome" Completely control the browser without your hands -- say "google...
Hidden Markov Model Toolkit - Hidden Markov Model Toolkit (HTK) is a portable toolkit used for speech recognition research, speech synthesis, character recognition and DNA sequencing.
Express Dictate Digital Dictation Software - Express Dictate software is a voice recording program that works like a dictaphone.
Speechmatics - The most accurate and inclusive speech-to-text API ever released.
TextFromToSpeech - Free online speech recognition tool that will help you write text with your voice without typing.