OpenAI's Whisper is the most accurate open-source speech-to-text model ever built. But using it requires the command line. Mumbl wraps Whisper in a native desktop app with a global hotkey, filler word cleanup, text formatting, and paste-anywhere convenience.
macOS & Windows · iOS coming soon — Whisper AI, zero setup
One hotkey. One app. No cloud, no setup, no complexity.
Whisper-powered. Fully local. Built for developers who care about privacy.
"alright so the new API endpoint is returning a 403 on authenticated requests, I think it's a CORS issue or maybe the token isn't being passed in the header correctly, need to check the middleware"
Bug Report: 403 on Authenticated API Requests Observed behavior: Authenticated requests to the new API endpoint are returning a 403 Forbidden response. Suspected causes: CORS misconfiguration blocking preflight requests, or auth token not being attached to request headers correctly. Next steps: Inspect middleware for token injection logic, check CORS headers in the API response, verify token format matches expected schema. Priority: High — blocks authenticated flows.
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
This is the simplest way to 10X your productivity.
I can finally talk to Claude Code with only two keys.
My favorite thing about Mumbl is its simplicity. There aren't any loops you have to go through to make it work and it's intertwined with my device really well. Right now I mainly use Mumbl for school work!
I was unsure on how I would feel talking to my computer, but I figured I'd give it a try. Turned out 10x better than I had expected. It's crazy how much time has already saved me!
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
I've been running Whisper from terminal for a year. Mumbl is everything I wanted to build myself. Same model, same local processing, but with a clean UI and filler word cleanup.
Tried whisper.cpp, Buzz, MacWhisper. Mumbl nailed the workflow: hotkey to record, automatic cleanup, paste at cursor. No file management, no export step.
As a developer who cares about privacy, I vetted the pipeline. Everything runs on-device. No network calls, no telemetry. Exactly what I'd build if I had the time.
"For years, I relied on transcription tools that were almost good, but they were all closed-source...leaving me wondering where my audio really went."
Whisper is incredible but requires Python, command line, and technical setup. Most people can't use it even though it's free.
"I'll reconsider when local or self-hosted AI is available." — It's available now, in an app.
Mumbl packages Whisper into a native app. Download, install, hit a hotkey, speak. No terminal, no Python, no setup. Just works.
Mumbl processes everything locally using Whisper AI. No cloud uploads. No servers. No data collection. Your words stay yours.
Start free with 10 transcriptions per week. Upgrade anytime for unlimited.
10 transcriptions per week. Perfect to get started.
Unlimited transcriptions. Best value.
Pay once, use forever. All future updates included.
Yes. Mumbl runs OpenAI's Whisper model locally on your device. The model is downloaded once during setup, then all processing happens on your machine. Same Whisper, packaged in a real app.
No. Mumbl handles everything. Download the app, install it, and you're ready. Hit a global hotkey from any app, speak, and formatted text appears. No terminal, no dependencies, no configuration.
Global hotkey from any app, automatic filler word removal, text formatting and style options, paste-anywhere convenience, and a native menu bar/system tray app. It turns Whisper from a developer tool into something anyone can use.
Join thousands who've stopped typing and started talking. Download Mumbl for free today.
Download for FreemacOS & Windows • iOS coming soon • Free forever