YapYapOS is the autonomous operating system behind YapYap, the free, open-source voice-to-text app that processes everything on-device. Zero cloud. Zero subscriptions. Zero compromises.
Every feature designed around one principle: your voice, your machine, your data.
YapYap detects your active app and adapts. Dictate into VS Code and get clean code comments. Speak into Slack and get casual messages. Email gets professional prose. Automatic.
WhisperKit and Parakeet TDT v3 run natively on Apple Silicon. Local LLMs via MLX handle text cleanup. Your audio is transcribed, cleaned, and discarded without ever leaving your Mac.
Push-to-talk for quick bursts. Hands-free for long dictation sessions. Command mode for rewriting selected text with your voice. Pick the mode that matches your workflow.
Technical jargon, proper nouns, brand names. Add custom vocabulary so YapYap recognizes the words that matter to your work. Your dictionary, your rules.
Built by an engineer who processes 100TB of data daily at his day job, and still believes your dictation should stay on your machine. That's YapYap.