Private, Unlimited Text-to-Speech for Apple Silicon

Turn scripts into natural speech, clone your voice, and produce audio without a subscription.

  • Natural narration generated on-device
  • Clone your voice from a short recording
  • 860+ voices, multilingual output
  • No subscriptions or per-word pricing
“No buying credits, or monthly subscriptions. It just works” — John · Read customer reviews →
macOS 15+ Apple Silicon Notarized by Apple 7-day money-back

Listen to Murmur · model shown for each sample

PodcastFish S2 Pro · [chuckling]
0:000:00
Playlist6 samples
MEET YOUR MAC’S VOICE STUDIO

A place for every part of your process.

Interactive preview with sample content. Audio generation runs in the Mac app.

Murmur
A PolishedSaved voice

Today we are testing this designed voice with a clear natural sentence, a gentle pause, and enough warmth, energy, and detail to hear how it sounds in a real spoken moment.

From My voices. Ready to reuse in your next recording. Transcript ready for Fish Audio S2 Pro
131 chars · 25 words · ~11s
Meet your local voice studioA Polished · Fish Audio S2 Pro
0:00 / 0:00
01 / 08 · Create speech

Your first voiceover starts with a script.

Write or import text, choose a voice and model, then generate on your Mac. Tune the controls supported by your model and export the take you like.

1Add your text2Choose a voice3Generate & export
Voice Library

Hear the difference across 860+ voices

From warm American narrators to energetic British hosts. Preview any voice instantly — right here.

Browse community voices, preview samples, and import into Murmur.

Turn words into professional audio — no studio needed

Whether it's a podcast, audiobook, or video narration, Murmur handles the voice so you can focus on the story.

Stop paying per word

Stop paying per word

One purchase, unlimited generation. No subscriptions, no usage caps, no per-character fees.

Hours of narration in minutes

Hours of narration in minutes

Drop in a script or full book. Murmur queues chapters and renders broadcast-ready audio while you do something else.

Your content stays yours

Your content stays yours

No cloud uploads, no third-party servers, no fine print about training on your data. Everything stays on your Mac.

Clone your voice from a short recording

Clone your voice from a short recording

Use a reference recording to create a reusable voice profile. Or browse 860+ community voices for the perfect match.

New in Murmur

Build the voice, then the whole production

One connected workflow: design a reusable voice in Voice Design, then assemble the full project around your script.

01Murmur Voice Design screen — describe a voice and save it as a reusable local voice
Voice Design

Design the voice before you write a line

Describe the voice you want instead of digging through presets — then save it as a reusable local voice.

  • Describe the role
  • Tune tone & language
  • Preview & save

A consistent host, narrator, character, or instructor voice you can reuse across every project.

Explore Voice Design
02Murmur Projects Story Studio — script with speakers and a multi-track timeline
Projects

Build the production around your script

Drop your saved voices into a project, edit the script, render clips locally, and export — all in one workspace.

  • Start from templates
  • Assign speakers
  • Render & export locally

A cleaner path for podcasts, audiobooks, training, ads, and dialogue with less copy-paste work.

Explore Projects

Local TTS vs cloud TTS: one Mac app, no usage caps

Many cloud TTS services use monthly plans or usage-based pricing. Murmur runs on your Mac after setup: one price, private scripts, unlimited local generation.

Cloud TTS

Cloud TTS services

  • Subscription or usage-based pricing
  • Pay per character or per minute
  • Your scripts uploaded to their servers
  • Internet required for every generation
  • Watermarks or usage caps on free tiers
Murmur

Murmur

  • One-time purchase, use forever
  • Unlimited generations, no caps
  • Speech generation stays on your Mac
  • Works offline after first setup
  • Export audio for your workflow
CUSTOMER REVIEWS

In their own words.

From DJ drops to everyday narration.
Here’s what people are making of Murmur.

This is perfect, No buying credits, or monthly subscriptions. It just works
John
Amazing app, incredible quality! and best part is it is all offline!
Caspian Ievers
This tool is absolutely amazing. The narrator voices are high-quality, and there are plenty of options to choose from. What I love most is that it even works offline and it’s a lifetime deal. I’m confident that anyone who purchases it will be impressed and save a ton of money.
Walter Hofstetter
Murmur is an excellent AI voice cloner, I use it a lot to make DJ jingles/drops, and is even great for cloning your own voice if you can't be bothered to record yourself. I was recently disturbed that on a previous update there seemed to be a 30 second sample limit, thereby breaking all my voice models. For me that rendered it useless, as I really didn't want to have to start from scratch. I am very pleased to say that has now been fixed and Murmur is best in its class. All my models are now working once more. I thoroughly recommend it!
Lucas Schmidt
We received a prompt response regarding our issue and look forward to the fully functioning fish-audio model. (Update April 11: Excellent customer service. Easy to use interface. The main model Fish-speech produces high quality audio results. Highly recommended.)
K. Kwatamani
YOUR LOCAL VOICE STUDIO

Make more.
Pay once.

Narrate your scripts, clone your voice, and build full audio projects. All on your Mac.

  • Unlimited local generation. No credits or monthly fees.
  • Voice cloning, voice design, and community voices.
  • Projects and a batch queue for longer productions.
  • Export WAV or M4A for your next edit.

Hear what you can make

Murmur for Mac
$49USD · one-time purchase

No subscription. No per-word fees.

Get Murmur — $49

Download + license key delivered by email.

7-day money-back guarantee

Check your Mac before buyingmacOS 15 or later · Apple Silicon (M1 or newer). Intel Macs aren’t supported.

Not sure it’s right for you? Ask me →
BEFORE YOU BUY

A few good questions.

Still wondering? Talk to the maker.

Is this a subscription?

No. Murmur costs $49 USD as a one-time purchase. Generate locally without credits, per-word charges, or a monthly subscription.

Will it work on my Mac?

You need macOS 15 or later and an Apple Silicon Mac (M1 or newer). Intel Macs are not supported. Model downloads, memory needs, and generation speed vary by speech model and your hardware.

Does it work without the internet?

Speech generation runs locally after you download your chosen models. Internet is needed for initial setup, model downloads, and online features such as browsing community voices.

What can I make and export?

Create narration, DJ drops, podcast intros, and longer audio projects. Clone your own voice, design a voice, or choose from the voice library. Export WAV or M4A audio for editing and sharing.

What happens after I buy?

You receive a download and license key by email. Install Murmur, activate your license, and download the models you want to use. If it does not fit your workflow, request a refund within 7 days of purchase.

What does notarization by Apple mean?

Apple notarization checks submitted software for malicious components. It is not an App Store review or an endorsement.

MEET THE MAKER

Hi, I’m Tarun.

I build Murmur. If you have a question about your Mac, need help with a voice, or want to share an idea, you can email me directly.

Tarun · Developer of Murmur
CLI + MCP automation

Give every agent a local voice.

Murmur is not limited to the app window. Generate narration from Terminal or let your coding agent create, inspect, and organize audio without uploading your scripts.

Generate from Terminal

Turn scripts and Markdown files into WAV or M4A with one command.

Connect your coding agent

Let Codex, Claude, and Cursor discover voices and create audio through MCP.

Keep every output local

Use the models and voices already installed on your Mac—no cloud API key required.

Explore CLI & MCP
murmur — local automation Local
$murmur generate --input video/script.md --output video/voiceover.wav
01
READING SCRIPTvideo/script.md
02
USING VOICEaf_bella · Kokoro
03
CREATED AUDIOvideo/voiceover.wav

Find a voice in your language

From English and German to Japanese, Korean, and Arabic. Each model brings different strengths — pick the right engine for your content.

See all languages
EnglishGermanSpanishFrenchChineseJapaneseKoreanItalianPortugueseRussianArabicPolishTurkishDutchHindi+10 more
Explore by intent

Find your starting point

Three ways into Murmur. Pick the one that matches how you're thinking right now.