Vox

Vox is an on-device AI dictation tool that transforms speech into text directly on your Mac or Windows machine. It belongs to the productivity category of voice-to-text applications, designed for anyone who types frequently—from writers and developers to busy professionals. Its core value lies in absolute privacy and speed: by processing everything locally without cloud uploads, Vox eliminates latency, account requirements, and data exposure while delivering clean, formatted text ready to paste.

The primary pain point Vox addresses is the inefficiency and privacy risk of traditional dictation services. Cloud-based dictation tools require an internet connection, often demand account creation, and send audio to remote servers where it may be stored, analyzed, or leaked. This creates friction for users who want quick transcription without sacrificing control over their data. Vox solves this by running entirely on-device, ensuring audio never leaves the machine, no telemetry is collected, and the app works even in airplane mode—turning a privacy concern into a productivity advantage.

Vox leverages local AI models for both transcription and cleanup. For transcription, it uses OpenAI's Whisper or NVIDIA's Parakeet model, which run on the Apple Neural Engine or Metal GPU on Mac, or any DirectX 12 GPU on Windows with CPU fallback. For cleanup—removing filler words, correcting self-corrections, and formatting text—it uses Apple Intelligence on macOS 26+ or a local Gemma 4 model. This dual-model architecture ensures high accuracy while keeping everything on-device, meaning no internet is required after the initial one-time model download. Users can verify the absence of network calls with tools like Little Snitch or GlassWire.

Vox includes context-aware voice modes that adjust the cleanup engine based on the target application. The General mode provides balanced cleanup for any app, dropping fillers and enumerating lists. The Email mode produces formal, fully punctuated text suitable for mail clients like Gmail or Outlook, without inventing salutations. Chat mode tailors output to casual platforms like Slack or Discord, preserving fragments and contractions. Code Comment mode uses present-tense third-person and preserves identifiers verbatim, ideal for Xcode or VS Code. Notes mode generates full sentences with bullets on enumeration. Additionally, users can create custom modes with their own system prompts and auto-trigger rules.

Vox's architecture ensures complete privacy during dictation. No audio, transcripts, or telemetry are ever sent to a server; the only network calls are the one-time model download and an optional update check. This makes Vox a verifiably privacy-first tool, independently checkable with network monitors. After the initial download, Vox works entirely offline, including on a plane. The app requires no account to use—no sign-up, no login. For commercial use, a license requires only a billing email at Stripe. This combination of privacy and offline functionality sets Vox apart from every cloud-dependent dictation alternative.