Speech to Text (STT)
Transcribe live microphone audio to text with your browser's speech-recognition capability.
Configure inputs and click Run
How It Works & Educational Guide
How Nexifr's Speech to Text (STT) processes your files securely — covering supported formats, output quality, and why your files never leave your device.
01How Browser Speech to Text Works
This tool requests permission to use your microphone and uses the speech-recognition capability available in your browser. Select the language that most closely matches the speaker, begin recording, then review the transcript before copying it. Recognition quality depends on microphone quality, pronunciation, background noise, and browser support.
02Improve Live Transcription Accuracy
Use a quiet room, speak at a steady pace, keep the microphone close, and choose the correct language. Proper nouns, product names, acronyms, and mixed languages often need manual correction. This tool is best for drafting a transcript, not for high-stakes legal, medical, or compliance records without review.
03Speech Recognition Privacy
The browser and its recognition provider handle microphone recognition. Browser implementations may process audio through a provider service, so do not dictate passwords, financial information, health information, or other sensitive content.
Frequently Asked Questions
Which browsers support speech to text online?
Google Chrome and Microsoft Edge have the most complete support for the Web Speech API used by this tool. Safari on macOS and iOS also supports speech recognition. Firefox has limited or no support — if you are on Firefox, switch to Chrome for the best experience.
Does microphone audio leave my device?
Speech recognition is processed by your browser and its underlying recognition provider (for example, Google's speech API in Chrome). Audio is typically sent to that provider's service to generate the transcript — it does not pass through Nexifr's servers. Do not dictate passwords, financial data, health information, or other sensitive content.
What languages does this speech to text tool support?
This tool currently supports English (US), Spanish (ES), French (FR), and German (DE). Select the language that best matches the speaker before you start recording. Mixing languages within a single session reduces accuracy significantly.
Is this speech to text tool free to use?
Yes. The tool is completely free — there is no character limit, no session cap, and no account required. Recognition is performed by your browser using the Web Speech API, so the only requirement is a working microphone and a supported browser.
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