Speech Dispatcher Tester - Online Explore All Voices
List all available TTS voices on your system. Test each with any text. Adjust rate and pitch. Find the best voice.
UD5 Toolkit
List all available TTS voices on your system. Test each with any text. Adjust rate and pitch. Find the best voice.
Paste or type text and have it read aloud with natural voices. Control speed and pitch. Uses browser's built‑in TTS.
Hear text spoken word by word with boundary events. See the exact index and character. Advanced TTS dev tool.
Use SSML <mark> tags to fire events during TTS. See text highlighted as it is spoken. Understand speech synthesis timing. local.
Combine TTS with text highlighting. See each word colored as it is spoken. For e‑learning content creation. Local.
Write SSML to control pitch, speed, and breaks. Play the generated speech with the browser’s TTS engine. Learn SSML.
Paste any text and have it read aloud while each spoken word is highlighted. Improve reading focus. Web Speech API.
Write text and pick a voice, rate, and pitch to test your browser's speech synthesis capabilities. No download.
Type or paste text and have it read aloud by your browser's speech synthesis engine. Control voice, pitch, and rate. No download, works offline.