oTranscribe - A free web app to take the pain out of transcribing recorded media
X-Minus.pro - X-Minus.pro is an artificial intelligence-based tool that allows you to separate vocals from a song.
Listen N Write - Listen N Write can be used to play and transcribe ordinary audio and video recordings (WAV, MP3...
Al Vocal Remover - Al Vocal Remover is an online audio editor that allows you to remove vocals and extract karaoke separately from a song.
Speechnotes - Dictation Notepad - Free Online Speech Recognition Text Editor Web App for Chrome
Vocal Extractor - Vocal Extractor- Karaoke Maker (iPhone) is an app that allows you to separate karaoke and vocals from a song or audio file.