100% Privacy Guaranteed
Your text is never sent to external servers. Confidential documents and personal information are completely safe. While Google, Amazon, and Azure cloud TTS send text to servers, Simple TTS processes everything locally.
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Why On-Device TTS AI?
Unlike cloud-based TTS services, all processing happens directly in your browser.
Completely Free
No API costs, no monthly fees, no signup required, free forever. Unlike Google TTS and Amazon Polly which charge API fees, Simple TTS is permanently free. No credit card or payment needed.
AI-Quality Voice
Powered by Supertonic AI model for natural pronunciation and intonation. Experience human-like natural voice, not robotic speech.
10 Voice Options
Choose from 5 male voices (M1-M5) and 5 female voices (F1-F5) with diverse tones. Select the perfect voice for your content.
TTS Key Features
10 Voice Options
Choose from 5 male voices (M1-M5) and 5 female voices (F1-F5). Each voice has unique characteristics and tones.
Speed Control
Adjust playback speed from 0.5x to 2x. Listen slowly for clarity or speed up for quick review.
WAV Download
Download generated speech as high-quality WAV files. Use them for YouTube videos, presentations, and more.
Complete Privacy
All processing happens in your browser. Your text and audio are never sent to external servers.
Who Uses Simple TTS?
Short-Form Creators
Create narrations for YouTube Shorts, TikTok, and Reels
Students
Convert study materials to audio and practice language pronunciation
Professionals
Create presentation voiceovers and training materials
Audiobook Creators
Convert novels and blog posts into audiobooks
Visually Impaired
Access text content through voice
Educators
Create e-learning content and lecture audio materials
Language Learners
Listen to native pronunciation and practice listening skills
Seniors
Listen to news and articles comfortably
Simple TTS is 100% Free
Compare with paid cloud TTS services. Simple TTS is unlimited and free. No hidden costs, no paid upgrades.
| Service | Cost | Data Safety | Processing | Signup |
|---|---|---|---|---|
| Simple TTS | Free Forever | No Server Upload | Local | Not Required |
| Google Cloud TTS | $4/1M chars | Sent to Server | Cloud | Required |
| Amazon Polly | $4/1M chars | Sent to Server | Cloud | Required |
| Azure TTS | $4/1M chars | Sent to Server | Cloud | Required |
Frequently Asked Questions
Is it really 100% free?
Yes, Simple TTS is permanently free. Unlike Google Cloud TTS or Amazon Polly, there are no API fees. No signup or credit card required. Start using it right away.
Will it become paid later?
No, Simple TTS is a permanently free service. There are no hidden costs or paid upgrades. Use it unlimited without ads.
Can I use TTS for free?
Yes, Simple TTS is completely free. You can use it immediately without registration or payment. Unlimited daily usage.
Is my text sent to a server?
No, all processing happens 100% in your browser. Your text is never sent to external servers, ensuring complete privacy.
Can I safely use it for confidential documents?
Yes, since text is not sent to servers, you can safely convert confidential documents and personal information. Medical records, legal documents, and sensitive content are all safe.
How is this different from cloud TTS?
Google, Amazon, and Azure TTS send your text to cloud servers for processing, while Simple TTS processes locally, eliminating data leak risks. It's also free and requires no signup.
Is my privacy protected?
Yes, all speech processing is done entirely within your browser. Your text and audio data are never sent to external servers, ensuring complete privacy.
What is TTS?
TTS (Text-to-Speech) is a technology that converts text into speech. It reads your input text aloud with natural-sounding voices.
What is On-Device TTS?
On-Device TTS synthesizes speech directly on your device (browser) instead of servers. Once the AI model is downloaded, all processing happens locally, ensuring privacy.
What voices can I choose from?
You can choose from 10 voices: 5 male (M1-M5) and 5 female (F1-F5). Each voice has unique tones and characteristics.
Can I download the generated speech?
Yes, you can download the generated speech as a WAV file. Use it for YouTube videos, presentations, audiobooks, and more.
What is the maximum text length?
You can convert up to 300 characters at a time. For longer texts, divide them into multiple conversions.
What languages are supported?
Currently Korean and English are supported. Natural pronunciation is provided based on the Supertonic AI model.
Can I create YouTube narrations with TTS?
Yes, download the generated speech as a WAV file and use it as narration for YouTube videos. Perfect for Shorts, Reels, and other short-form content.
Can I use TTS for presentations?
Yes, add TTS-generated voice to your presentation slides to create more professional presentation materials.
Can I create audiobooks?
Yes, convert novels or blog posts to speech using TTS to create personal audiobooks. Convert in 300-character segments and combine them.
Is it accessible for visually impaired users?
Yes, Simple TTS helps improve text accessibility for visually impaired users. Web page text and documents can be listened to as audio.
Can I use it commercially?
Please check the Supertonic AI model's license policy for commercial use of speech generated by Simple TTS. Personal projects can be used freely.