Hear any text read aloud instantly in your browser. Pick a voice, tune the rate and pitch, and follow along with word highlighting - all processing stays on your device.
Technical Specifications
Speech engine and reading rules used for every narration.
| Specification |
Details |
| Speech engine |
Web Speech API speechSynthesis with on-device voices - no network requests |
| Voices |
Every voice reported by your browser, each with its language tag; default voice when none is picked |
| Rate |
0.5 (half speed) to 2 (double speed), default 1, adjustable by number field or slider |
| Pitch |
0 (deep) to 2 (high), default 1, adjustable by number field or slider |
| Volume |
0 (silent) to 1 (full), default 1, adjustable by slider |
| Text limit |
Up to 5,000 characters per reading; empty or over-limit text is rejected with a message |
| Highlighting |
Optional word-by-word readout tracking driven by boundary events with a character-index fallback |
| Processing location |
100% client-side synthesis in your browser; nothing is uploaded |
| Export |
Copy text to clipboard, copy any recent reading, or download the script as plain text |
| Usage limit |
None - read unlimited text for free, no signup required |
Understanding Text to Speech
Text to speech turns written words into spoken audio using a synthesis engine. Modern browsers ship this engine built in: they map letters to sounds, apply rhythm and intonation, and play the result through your speakers. Because the voices live on your device, narration starts instantly and works offline with most system voices.
Picking the right voice
Voice quality depends on your setup. Desktop Chrome includes several Google voices, Edge adds natural neural voices, and Windows, macOS, Android, and iOS each bundle their own male and female readers in dozens of languages. If a language you need is missing, install it in your operating system settings and it will appear in the dropdown on your next visit.
Rate, pitch, and proofreading
Slightly slower rates (0.8 to 0.9) suit language learners and dense material, while 1.2 to 1.5 skim familiar text quickly. Pitch shifts the voice character without changing speed - handy for telling characters apart when reading stories aloud. Writers love the proofreading trick: hearing your draft read back exposes typos and awkward sentences your eyes skip, especially with word highlighting on.
Everyday uses
Listen to articles while cooking, give resting eyes a break, check how an announcement sounds before publishing, or help readers who prefer audio. Pair the spoken message with a scannable code through the QR Code Generator when you want to share the same text on paper or slides.
Honest limitations
Browser voices vary in quality and cannot match studio recordings; unusual names, abbreviations, and mixed-language text may be mispronounced. Readings are capped at 5,000 characters, and this tool produces live audio only - it does not save MP3 files. Some browsers require a click before any audio plays, which is why narration always starts with the Speak button.
Privacy and Client-Side Security
Privacy Guarantee: All synthesis occurs locally inside your browser. Your text and settings are never transmitted, stored, or recorded on remote servers.
Many online readers upload your documents to cloud voices, which exposes private drafts and personal messages to a third party. TinyToolzz keeps everything in-page: text handling, voice selection, and narration run with plain JavaScript and your device's own speech engine.
Because nothing is uploaded, there is no waiting, no account, and no copy of your text retained anywhere. Your words exist only in the tab's memory and are discarded when you close the page or click Clear.