Text to Speech
Type or paste text and click Play. Adjust voice, speed, pitch, and volume. Uses your browser's built-in Speech Synthesis — no API key needed.
Frequently Asked Questions
How does this Text to Speech tool work?
The tool uses the Web Speech API built into modern browsers (SpeechSynthesis). It converts your text to audio using your operating system's installed voices, directly in the browser with no server communication.
Which browsers support this tool?
Chrome, Edge, and Safari have the best support with the most voices. Firefox supports basic TTS but may have fewer voices. The tool shows a warning if your browser is not supported.
Can I download the audio as an MP3?
Browser TTS doesn't expose an audio download API. The audio plays directly through your speakers. To record it, use system audio recording software.
How many voices are available?
It depends on your OS. Windows 10/11 includes over 40 languages. macOS has 50+ voices. Chrome on mobile may have fewer. The voice list is populated from whatever is installed on your system.
Is there a character limit?
There's no hard limit in the tool, but very long texts may be automatically split by the browser's speech engine. For best results, keep inputs under 5,000 characters.
How the Web Speech API Works
This tool uses the browser's built-in Web Speech Synthesis API(window.speechSynthesis). The API takes a SpeechSynthesisUtteranceobject with your text, voice, rate, pitch, and volume settings, then uses the operating system's native TTS engine to produce audio — no server, no API key, no audio file is generated.
Speech Controls Reference
| Control | Range | Default | Effect |
|---|---|---|---|
| Rate | 0.1 – 10 | 1 | Speaking speed (1 = normal, 2 = twice as fast) |
| Pitch | 0 – 2 | 1 | Voice pitch (0 = deep, 2 = high) |
| Volume | 0 – 1 | 1 | Audio volume (0 = silent, 1 = full) |
Available Voices
The voices listed in the selector are provided by your operating system, not the browser. Windows ships with Microsoft David, Zira, and Cortana voices; macOS includes Siri and Alex; mobile devices provide the OS assistant voice plus any language packs you've installed. Chrome on Windows and macOS also includes Google-powered online voices (requires internet connection).