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Windows NativeAuditable Architecture

Offline Voice to TextOptimized for Windows 10 & 11.

Universal push-to-talk dictation running locally on your NVIDIA, AMD, or Intel GPU via DirectML. Zero cloud streaming, sub-200ms latency.

GPU AccelerationDirectML / CUDANVIDIA, AMD & Intel
HotkeyAlt + SpaceConflict-free system hook
Memory Usage~350 MBLightweight Rust Tauri core
Windows CompatibilityWin 10 & 11Native Win32 & UWP
The Cloud Compromise

The Problem with Cloud Dictation

Windows Speech Recognition and cloud alternatives either provide poor accuracy, upload voice data to remote servers, or fail to paste properly into elevated Win32 and developer applications.

Target Profile: Windows developers, enterprise analysts, gamers, and PC power users
The Local-First Solution

Physical Hardware Sovereignty

Murmur integrates DirectML and native Windows SendInput/UIAutomation APIs to deliver smooth, reliable dictation into Cursor, PowerShell, Word, and Slack without cloud lag.

✓ 0 bytes outbound · GPU accelerated
Substantiated Architectural Comparison

Local Architecture vs. Cloud SaaS

Buyer ConcernMurmur (Local-First)Cloud Alternatives (e.g. Wispr)
Windows Hardware Acceleration
Decodes 5x faster with minimal CPU overhead
DirectML & CUDA GPU offloadingCPU-only or cloud streaming
Elevated App Text Injection
Reliable text paste across all your desktop tools
Native SendInput with UIPI elevation fallbackFails silently in Task Manager / IDEs
Windows System Menu Conflicts
Smooth, frustration-free Alt+Space experience
Suppresses SC_KEYMENU conflicts automaticallyTriggers Windows system menus inadvertently
Offline Functionality
Dictate in secure enterprise environments
100% offline (No Microsoft cloud telemetry)Dependent on cloud connection
Pricing Narrative

Harness your discrete or integrated GPU without cloud subscriptions.

Whether you run an NVIDIA RTX GPU, AMD Radeon, or Intel Iris Xe, Murmur runs Whisper directly on your hardware at full speed without monthly fees.

Real Workflow Outcome (Product Hunt & Reddit)

“Finally a Windows dictation app that handles code terms and doesn't route my mic through cloud servers. Alt+Space is instant.”

Windows 11 software engineer review

How to Verify This Claim Yourself

Open Windows Task Manager. Dictate for 30 seconds. Verify 0% network bandwidth usage from Murmur.exe.

Frequently Asked Questions

Does Murmur support Windows 11 arm64 devices (Snapdragon X Elite)?

Yes. Murmur runs on x64 and arm64 Windows devices with DirectML hardware acceleration.

How do I trigger dictation on Windows?

Press Alt + Space from any active window. Speak naturally, release, and your formatted text will be typed at the cursor.

Ready to dictate without cloud exposure?

Download Murmur for macOS and Windows. Free, open source, and 100% on-device.