Deepgram - Search engine for speech
Tesseract - Tesseract is an optical character recognition engine for various operating systems
Cassette - Transcribe, record & share conversations
Prizmo - Prizmo is a scanning application for Mac with Optical Character Recognition (OCR) in over 40 languages with powerful editing capability, text-to-speech, and iCloud support.
Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.
GOCR - GOCR homepage. GOCR is an OCR (Optical Character Recognition) program, developed under the GNU Public License.