



The best open source alternative to Nuance Dragon is Speech Note. If that doesn't suit you, our users have ranked more than 50 alternatives to Nuance Dragon and 12 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Nuance Dragon are FluidVoice, Simon Speech Recognition, AIgrator Scribe and CMU Sphinx.




Processes voice-to-text instantly on Mac with privacy-first local AI, zero delay, no subscriptions, open-source code, optional context-enhanced transcription, direct input into any app, hardware-optimized performance, and full offline control.




Simon is an open source speech recognition program that can replace your mouse and keyboard. The system is designed to be as flexible as possible and will work with any language or dialect.

Free, open-source desktop assistant for offline speech-to-text and computer voice control, using Python and Vosk engine, offering real-time dictation, fuzzy matching, extensive hotkey support, dual input modes, and deep customization, all with strict data privacy.

CMU Sphinx is a speaker-independent large vocabulary continuous speech recognizer released under BSD style license. It is also a collection of open source tools and resources that allows researchers and developers to build speech recognition systems.

Work by Speech is the first program in the world that allows efficient work on a computer by speech without needing a keyboard and mouse.




WhisperWriter is a small speech-to-text app that uses OpenAI's Whisper model to auto-transcribe recordings from a user's microphone to the active window.
Mimic is a powerful TTS tool. Mimic is low-latency and has a small resource footprint. Its range of high quality voices also set it apart from other open source text-to-speech projects.




Gespeaker is a GTK+ frontend for espeak. It allows to play a text in many languages with settings for voice, pitch, volume, speed and word gap. The text played can also be recorded to WAV file.


This is more toward developing