No. 01Privacy
Fully Local
Your voice never leaves your machine. Zero cloud, zero telemetry, complete privacy. Unlike Wispr Flow, we don't upload your audio snippets to remote servers. Your voice is yours — not a data asset.
MUMBLEFLOW
Voice to Text. Fully Local.
Sub-second transcription powered by whisper.cpp and Tauri+Rust. No cloud, no data leaves your machine. Pay once, own it forever
v1.0 / macOS · Windows · Linux · $5 one-time
01 / Features
WHY MUMBLEFLOW
02 / How It Works
SIMPLE BY DESIGN
Five steps from hotkey to text. No cloud. No subscription. Just your voice.
Step 1 — Activate
Press Hotkey
Press Fn anywhere. MumbleFlow starts listening instantly with a floating bar indicator.
Step 2 — Dictate
Speak Naturally
Talk like you normally would. The waveform shows your audio in real-time.
Step 3 — Transcribe
Instant Transcription
whisper.cpp transcribes your speech locally in sub-second time. No internet needed.
Step 4 — Polish
Smart Text Cleanup
Local LLM cleans up punctuation, grammar, and formatting automatically.
Step 5 — Output
Text Injected
Your transcribed text is pasted directly at your cursor position. Works in any app.
The Truth
vs. Wispr Flow
Wispr charges $15/mo to record your voice, upload your audio snippets to their servers, and store them. Your words, their database. MumbleFlow: $5 once, nothing leaves your machine. Ever.
03 / Principles
WHAT WE BELIEVE
PRIVACY FIRST
Your voice data never leaves your device. No cloud processing, no telemetry, no exceptions. Other tools like Wispr Flow store your audio recordings on their servers — every word you dictate, archived in someone else's infrastructure. MumbleFlow processes everything locally and discards audio immediately.
SPEED MATTERS
Sub-second transcription powered by whisper.cpp with Metal and CUDA acceleration. Faster than any cloud service.
OWN YOUR TOOLS
One purchase, yours forever. No subscriptions draining your wallet month after month. Wispr wants $180 a year for the privilege of sending your voice to their servers. We think that's backwards.
WORKS EVERYWHERE
macOS, Windows, Linux. Any app, any text field. Press the hotkey and speak. It just works.
04 / Colophon
CREDITS
Built by
- MumbleFlow Team
Tech
- Tauri 2.0
- Rust
- whisper.cpp
- llama.cpp
Platform
- macOS 14+
- Windows 10+
- Linux
Price
- $5 One-Time Purchase
- Not $180/yr like Wispr
Year
- 2025
- Ongoing
© 2025 MumbleFlow. All rights reserved.
Built with Rust. Designed for privacy.