The Private Dictation AppWhere Voice Never Leaves Your Machine.
Built for professionals who handle sensitive ideas, privileged communications, and proprietary code. Zero cloud transcription, zero accounts, and zero telemetry.
The Problem with Cloud Dictation
Most voice typing tools stream unencrypted audio to cloud SaaS endpoints. Even with strict vendor privacy policies, data remains exposed to subpoena, cloud breaches, third-party sub-processors, and rogue employee access.
Physical Hardware Sovereignty
Murmur replaces policy promises with hardware isolation. Microphone audio is processed in local RAM and discarded immediately upon text insertion.
Local Architecture vs. Cloud SaaS
| Buyer Concern | Murmur (Local-First) | Cloud Alternatives (e.g. Wispr) |
|---|---|---|
Data Security Model Architecture cannot be breached remotely | Physical hardware boundary (Air-gapped) | Legal terms of service & policy controls |
Authentication & User ID No centralized user identity or activity logging | None (Works out of the box) | Mandatory email / Google SSO login |
Retention Controls Instant, deterministic erasure from your disk | 1-click wipe / Auto-purge (0-30 days) / Incognito | Cloud retention with remote database deletion queues |
Third-Party Sub-processors Compliance with strict enterprise NDAs and confidentiality | 0 sub-processors (100% local) | Multiple cloud hosting, LLM, and analytics vendors |
True privacy shouldn't be an expensive enterprise add-on.
While cloud providers gate privacy and retention controls behind expensive enterprise tiers, Murmur's local-first architecture makes complete data sovereignty the default for everyone.
“Finally a dictation tool that doesn't need an account or an internet connection. Tested with Little Snitch and it's completely silent.”
How to Verify This Claim Yourself
Run `pktmon filter add -n murmur && pktmon start --etw` on Windows while dictating. Verify 0 packets emitted.
Frequently Asked Questions
Do I need to create an account to use Murmur?
No. Murmur requires zero logins, email addresses, or API keys. You download the app and start dictating immediately.
Can I use Murmur in high-security air-gapped workstations?
Yes. Once the local model weight is on your machine, Murmur can run with network interfaces physically disabled.
Ready to dictate without cloud exposure?
Download Murmur for macOS and Windows. Free, open source, and 100% on-device.