Private by Architecture
Your text is synthesized on your own silicon. There is no server to send it to, no logging, no training on your data — privacy is not a policy here, it is physics.
Runs 100% in your browser — nothing leaves your device
Free AI Text to Speech. Natural Voices, Zero Trade-offs.
Turn any text into studio-quality speech with a neural voice engine that runs right inside this page. No API keys, no uploads, no sign-up.
New: Zinox Speech for ChromeRead any page aloud with neural voices — install the extension- In-browser
- neural inference on your own device
- 24 kHz
- studio-grade audio output
- 0 bytes
- of your text ever uploaded
- 16
- curated American & British voices
Live Demo
Hear It Before You Believe It
This demo loads a real neural network into this page and synthesizes speech directly on your device. No recordings, no server round-trips — just inference, live in your browser.
Try a sample:
251 / 1,500 characters
Long texts are split into sentence-level segments and stitched together seamlessly.
Why Zinox Speech
Cloud TTS Services, Without the Cloud
Traditional text-to-speech APIs charge per character, require accounts and ship your text to data centers. Zinox Speech deletes all three downsides by running the neural network where your text already is.
Zero Cost, Zero Limits
No API keys, no subscription, no character quotas and no rate limits. Synthesize a sentence or an entire chapter — the price is always the same: free.
Fast Enough to Feel Instant
The optimized engine synthesizes speech faster than real time on a modern laptop CPU — no dedicated graphics hardware required.
16 Curated Voices
Hand-picked American and British voices across female and male ranges, each rated by quality grade — from the flagship Heart (A) to the storyteller Fable.
Works Offline
After the first run the model is cached in your browser. Generate speech on a plane, in a bunker or on a train through the middle of nowhere.
Accessible by Design
Full keyboard navigation, ARIA live regions for progress and errors, and adjustable speech rate from 0.5x to 1.5x — built to be listened to by everyone.
How It Works
From Text to Speech in Three Steps
No accounts, no onboarding calls, no configuration. The entire pipeline — tokenization, neural synthesis and audio encoding — happens inside this page.
- Step 1
Type or Paste Your Text
Up to 1,500 characters per run. Articles, scripts, dialogues, lecture notes — anything written in English. Longer texts are automatically split into sentences and stitched into one seamless audio file.
- Step 2
Pick a Voice and Speed
Choose from sixteen curated American and British voices, then fine-tune the pace between 0.5x for careful listening and 1.5x for quick proofreading. Switching voices never re-downloads the model.
- Step 3
Listen, Download, Done
Speech is synthesized at 24 kHz in seconds and plays right on the page. Export a lossless WAV with one click and drop it straight into your video editor, podcast rig or IVR system.
What People Build With It
Video Voice-Overs
Narrate YouTube explainers, ads and product demos without booking a studio.
E-Learning & Courses
Turn lecture notes and slide decks into audio lessons students can replay anywhere.
Accessibility
Offer an instant read-aloud option for articles, docs and interfaces.
Prototype Voice Agents
Test dialogue scripts and IVR flows before wiring up a production API.
Proofreading
Hear your writing at 1.5x speed — your ears catch what your eyes skip.
Confidential Documents
Listen to private notes and legal drafts knowing nothing ever leaves the device.
FAQ
Frequently Asked Questions
Everything you might want to know before converting your first line of text.