Speech to Text
Uses the browser's speech recognition — Chrome and Edge only, and audio goes to the platform's service.
How Speech to Text works
Dictate and watch the transcript appear as you speak. Uses the browser's speech recognition — Chrome and Edge only, and audio goes to the platform's service. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.
That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.
What runs, and where
The page uses the browser's Web Speech API. In Chrome and Edge the audio is sent to the browser vendor's speech service for recognition; in some builds and for some languages it is processed on the device. The microphone is open only while you are recording, and the text is written straight into the box.
That is a real exception to the “nothing leaves your device” rule on this site, and it is the browser's behaviour, not a choice this page can change. If dictation must stay local, use an on-device tool instead.
Language matters more than microphone
Five recognition languages are offered: US and UK English, Urdu (Pakistan), Hindi and Arabic. Choosing the wrong one produces confident nonsense — the engine maps sounds onto the nearest words in the language it was told to expect.
A headset microphone improves accuracy far more than speaking louder. Background noise, fan hum and echo are what cause dropped words, not volume.
| Situation | Practical advice |
|---|---|
| Quiet room, headset | Best accuracy |
| Phone speaker in a room | Workable, expect corrections |
| Café or street | Poor; most words will need fixing |
| Mixed languages in one sentence | Use separate passes per language |
Limits you will hit
Recognition stops after a period of silence, which is why long dictation arrives in chunks. Firefox does not implement the API at all and the page says so rather than failing silently.
Punctuation is inconsistent — some engines insert it, most do not. Plan on a proofreading pass; dictation saves typing, not editing.
Good to know
- Works offline once loaded, including on flights and in locked-down networks.
- No file size limit beyond your device's own memory.
- Free to use, with no account and no usage counter.
- Results are produced locally, so they are not logged or shared with anyone.
Questions
Is my file uploaded?
Chrome sends microphone audio to Google's speech service — that is how the browser API works. Nothing is stored by this site.
Any size limit?
Only your device's memory; wasm conversions are single-threaded so long videos take longer.
Is the audio recorded and stored?
Not by this page. Whether the browser vendor keeps a copy depends on their speech service and your account settings.
Does it work offline?
Usually not. On-device recognition exists in some browsers but is not guaranteed.
Keep going
More text tools
Typing Speed Test
Measure your typing speed and accuracy over 60 seconds. Type the sample text; WPM, accuracy and elapsed time update live in your browser.
Open toolReadability Improver
Find long sentences, passive voice and jargon in your writing. Deterministic rules flag what to fix — no AI, no guessing, same result every time.
Open toolAI Paraphraser
Rewrite a paragraph in plain English, shorter, or in a different tone. Runs on your own Cloudflare Worker with a free Workers AI binding — no API key.
Open toolWord Counter
Count words, characters, sentences, paragraphs and reading time as you type. Free, no sign-up, runs entirely in your browser.
Open toolText Diff Checker
Compare two texts and highlight added, removed and changed lines side by side. Works offline, nothing is uploaded.
Open toolFind and Replace
Replace words or patterns across large text with regular expression support, match case and whole word options.
Open tool