Type at the speed of thought. 100% offline.
Press Ctrl + Space anywhere on Windows—Chrome, Word, Notepad, Slack, or VS Code. Powered by local CPU-accelerated OpenAI Whisper. Zero audio ever leaves your PC.
Windows 11 / 10 (64-bit) • Single installer (~25 MB) • Download as .zip
Why VoiceFlow is the Ultimate Dictation Tool
Designed from the ground up to replace expensive cloud subscriptions with pure, local, private computing power.
Zero Cloud Audio Processing
All speech-to-text inference runs locally in memory on your PC using OpenAI Whisper. Zero audio recordings, zero transcripts, and zero telemetry ever leave your device.
Global Ctrl + Space Hotkey
A seamless low-level Windows keyboard hook lets you dictate into any focused application: Notepad, Word, Slack, Chrome, VS Code, or WhatsApp.
AVX2 CPU Acceleration
Compiled with AVX, AVX2, and FMA vector math instructions. Transcribes 3x faster than real-time speech on modern Intel & AMD CPUs without heavy GPU power drain.
Self-Contained Runtime
Requires zero developer tooling. No Node.js, Python, or Git needed on your laptop. Includes everything inside a single lightweight installer.
Silent Tray & Auto-Start
Closes silently to the Windows System Tray and registers with Windows Registry to start automatically on system boot with minimal RAM footprint (~80 MB idle).
Cryptographic Auto-Updater
Receive future models and improvements automatically. Signed cryptographically with Minisign and checked at most once every 12 hours from GitHub Releases.
Up and Running in 3 Steps
No command-line setup, no configuration files, and no cloud accounts required.
Download & Launch
Run the single setup wizard. VoiceFlow opens and automatically downloads the optimized 140 MB Whisper base model on first launch.
Press Ctrl + Space
Click into any application where you can type. Press Ctrl + Space and the dictation pill appears floating above your cursor.
Speak & Instant Insert
Speak your thoughts naturally. Press Enter or wait for silence; VoiceFlow simulates instant keystrokes right where your cursor is blinking.
VoiceFlow vs. Cloud Dictation Services
Why pay monthly subscription fees to companies that listen to your private audio when your CPU can do it for free?
Seeing "Windows protected your PC"?
Standard Windows SmartScreenWhen installing VoiceFlow on Windows 10 or 11, Microsoft Defender SmartScreen may display a blue warning screen. This happens with all newly published open-source tools because Microsoft requires indie developers to purchase a costly $300-$500/year EV Code Signing certificate. VoiceFlow is 100% free and community-driven, so we have not purchased an enterprise certificate yet.
Click "More info"
Click the small underlined text beneath the paragraph.
Click "Run anyway"
A new button will appear at the bottom right. Click it to launch.
Frequently Asked Questions
Everything you need to know about VoiceFlow privacy, offline AI, and performance.