mumbl
Your audio never leaves your device

Transcription that stays
on your computer.

Every major transcription tool uploads your audio to the cloud. Otter.ai just got hit with a class-action lawsuit for secretly recording conversations. Your voice deserves better.

Download for Free

macOS & Windows — 100% private

"I just don't trust any of these apps with my data like who knows who's listening on the other end""my company's security team would lose it if they knew I was sending recordings to some random cloud service""I read the privacy policy and it basically says they can do whatever they want with your recordings which is insane""so apparently otter was sued for recording people without telling them and that's the tool my whole team was using""I'm not comfortable with a stranger in the Philippines listening to my voice memos to help train some AI model""every time there's a data breach it's some company that swore they were keeping your stuff safe and then whoops""I just want to talk and have it transcribed without it going through seventeen servers in three countries first""my therapist recommended voice notes for processing stuff but I'm not putting personal thoughts on someone else's server""I just don't trust any of these apps with my data like who knows who's listening on the other end""my company's security team would lose it if they knew I was sending recordings to some random cloud service""I read the privacy policy and it basically says they can do whatever they want with your recordings which is insane""so apparently otter was sued for recording people without telling them and that's the tool my whole team was using""I'm not comfortable with a stranger in the Philippines listening to my voice memos to help train some AI model""every time there's a data breach it's some company that swore they were keeping your stuff safe and then whoops""I just want to talk and have it transcribed without it going through seventeen servers in three countries first""my therapist recommended voice notes for processing stuff but I'm not putting personal thoughts on someone else's server""I just don't trust any of these apps with my data like who knows who's listening on the other end""my company's security team would lose it if they knew I was sending recordings to some random cloud service""I read the privacy policy and it basically says they can do whatever they want with your recordings which is insane""so apparently otter was sued for recording people without telling them and that's the tool my whole team was using""I'm not comfortable with a stranger in the Philippines listening to my voice memos to help train some AI model""every time there's a data breach it's some company that swore they were keeping your stuff safe and then whoops""I just want to talk and have it transcribed without it going through seventeen servers in three countries first""my therapist recommended voice notes for processing stuff but I'm not putting personal thoughts on someone else's server"
"I need a transcription tool that guarantees no third-party access to my audio data.""Our security policy prohibits transmitting audio data to external cloud services. I need a fully local solution.""The vendor's privacy policy grants broad rights over user recordings, which is unacceptable for our use case.""Our team's current transcription tool faces a class-action lawsuit over unauthorized recording practices. We need to transition to a privacy-first alternative immediately.""I require a transcription solution that does not use human reviewers or my data for AI model training.""Data breaches consistently affect companies that claim strong security practices. The only reliable protection is ensuring data never leaves the device.""I need direct, on-device transcription without any data routing through external servers.""I want to use voice-to-text for personal reflection, but I need complete assurance that my thoughts remain entirely on my device.""I need a transcription tool that guarantees no third-party access to my audio data.""Our security policy prohibits transmitting audio data to external cloud services. I need a fully local solution.""The vendor's privacy policy grants broad rights over user recordings, which is unacceptable for our use case.""Our team's current transcription tool faces a class-action lawsuit over unauthorized recording practices. We need to transition to a privacy-first alternative immediately.""I require a transcription solution that does not use human reviewers or my data for AI model training.""Data breaches consistently affect companies that claim strong security practices. The only reliable protection is ensuring data never leaves the device.""I need direct, on-device transcription without any data routing through external servers.""I want to use voice-to-text for personal reflection, but I need complete assurance that my thoughts remain entirely on my device.""I need a transcription tool that guarantees no third-party access to my audio data.""Our security policy prohibits transmitting audio data to external cloud services. I need a fully local solution.""The vendor's privacy policy grants broad rights over user recordings, which is unacceptable for our use case.""Our team's current transcription tool faces a class-action lawsuit over unauthorized recording practices. We need to transition to a privacy-first alternative immediately.""I require a transcription solution that does not use human reviewers or my data for AI model training.""Data breaches consistently affect companies that claim strong security practices. The only reliable protection is ensuring data never leaves the device.""I need direct, on-device transcription without any data routing through external servers.""I want to use voice-to-text for personal reflection, but I need complete assurance that my thoughts remain entirely on my device."
100% local AI
No audio uploads
No data collection

The problem with cloud transcription

"I don't want to be sending any audio to a remote API, it all has to be local."

You can't reset your voice. Unlike a password, once your voice data is on someone else's server, it's there forever.

Data breaches aren't accidents — they're architectural inevitabilities of storing sensitive data on third-party infrastructure.

Mumbl processes everything locally. Audio that never leaves your device cannot be part of a server-side breach.

Three steps. That's it.

1

Hold down Option + Space

Or customize your own hotkey

2

Talk naturally

Say what you're thinking, ramble, use filler words. Mumbl cleans it all up.

3

Release

AI formats it instantly in your chosen style and pastes it wherever your cursor is.

Your voice never leaves your device

Mumbl processes everything locally using Whisper AI. No cloud uploads. No servers. No data collection. Your words stay yours.

What people are saying

"

This is the simplest way to 10X your productivity.

D
My Dad
"

I can finally talk to Claude Code with only two keys.

F
My Fiance
"

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!

LF
Luke Fitch
Coming soon
"

I verified it myself with a packet sniffer. Zero outbound connections during transcription. This is the real deal for anyone who actually cares about privacy, not just privacy theater.

?
Your testimonial here
Coming soon
"

After the Otter lawsuit, I couldn't trust any cloud transcription tool. Mumbl processes everything on my laptop and I can use it completely offline. That's the only privacy guarantee that matters.

?
Your testimonial here
Coming soon
"

I work with sensitive client information and needed transcription that my compliance team would sign off on. Mumbl's architecture made it an easy yes. No BAA needed because there's no third party.

?
Your testimonial here
"

This is the simplest way to 10X your productivity.

D
My Dad
"

I can finally talk to Claude Code with only two keys.

F
My Fiance
"

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!

LF
Luke Fitch
Coming soon
"

I verified it myself with a packet sniffer. Zero outbound connections during transcription. This is the real deal for anyone who actually cares about privacy, not just privacy theater.

?
Your testimonial here
Coming soon
"

After the Otter lawsuit, I couldn't trust any cloud transcription tool. Mumbl processes everything on my laptop and I can use it completely offline. That's the only privacy guarantee that matters.

?
Your testimonial here
Coming soon
"

I work with sensitive client information and needed transcription that my compliance team would sign off on. Mumbl's architecture made it an easy yes. No BAA needed because there's no third party.

?
Your testimonial here
"

This is the simplest way to 10X your productivity.

D
My Dad
"

I can finally talk to Claude Code with only two keys.

F
My Fiance
"

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!

LF
Luke Fitch
Coming soon
"

I verified it myself with a packet sniffer. Zero outbound connections during transcription. This is the real deal for anyone who actually cares about privacy, not just privacy theater.

?
Your testimonial here
Coming soon
"

After the Otter lawsuit, I couldn't trust any cloud transcription tool. Mumbl processes everything on my laptop and I can use it completely offline. That's the only privacy guarantee that matters.

?
Your testimonial here
Coming soon
"

I work with sensitive client information and needed transcription that my compliance team would sign off on. Mumbl's architecture made it an easy yes. No BAA needed because there's no third party.

?
Your testimonial here

Simple, transparent pricing

Start free with 10 transcriptions per week. Upgrade anytime for unlimited.

FreeAlways Free
$0forever

10 transcriptions per week. Perfect to get started.

  • 10 transcriptions per week
  • All formatting styles
  • 100% local processing
  • No credit card required
UnlimitedSave 45%
$6.58/month
$79 billed annually

Unlimited transcriptions. Best value.

  • Unlimited transcriptions
  • All formatting styles
  • 100% local processing
  • Priority support
Lifetime
$200one-time

Pay once, use forever. All future updates included.

  • Unlimited transcriptions
  • All formatting styles
  • 100% local processing
  • Priority support
  • All future updates

Frequently asked questions

How does it work without the cloud?

Mumbl runs Whisper AI directly on your computer. Your audio is processed locally and never transmitted anywhere. You can even use it offline.

Is it as accurate as cloud tools?

Yes. Mumbl uses OpenAI's Whisper model, trained on 680,000 hours of multilingual audio. Same AI, just running on your machine instead of someone else's server.

What makes this different from Otter.ai?

Otter uploads your audio to their servers, retains it, and was sued for using recordings to train AI without consent. Mumbl never transmits your audio anywhere. The difference is architectural, not just a privacy policy.

Ready to try it?

Download Mumbl for free. Your voice stays on your device.

Download for Free

macOS & Windows — Free forever — No credit card