Speech to Text
Transcribe spoken words into text in real-time using your microphone (Chrome, Edge and Safari).
Transcribe spoken words into text in real-time using your microphone (Chrome, Edge and Safari).
This free Speech to Text from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Speech to Text
- Upload your audio file.
- Pick the output format or edit options.
- Click "Process" and wait for the conversion.
- Download the result.
What you can do with the Speech to Text
- Convert WAV to MP3 for smaller file sizes.
- Trim silence from the start and end of a recording.
- Normalise volume across multiple podcast clips.
- Prep audio for upload to social platforms.
Why use KX Toolkit's Speech to Text
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
For lossy formats (MP3, AAC), avoid converting back and forth multiple times - every round-trip degrades audio quality.
Related Audio Tools
If you find this tool useful, explore the full Audio Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
How does the Speech to Text tool transcribe my voice?
The tool uses the Web Speech API's SpeechRecognition interface, which captures microphone input through your browser and returns transcribed text in real time. In Chrome and Edge, the audio is sent to Google's speech recognition service for processing, while Safari uses Apple's on-device or cloud engine. The transcribed text appears as you speak and updates with corrections once the recognizer is confident about the final phrase boundaries.
Which browsers and platforms are supported?
SpeechRecognition works reliably in Google Chrome, Microsoft Edge, and Safari 14.1+ on macOS and iOS. Firefox does not currently support the API, so transcription will not start there. On Android, Chrome and Samsung Internet support it, while on iOS, Safari is the only option. If your browser is unsupported, the tool will show a notice asking you to switch to Chrome, Edge, or Safari for the best experience.
Why does the tool require an internet connection?
In Chrome and Edge, audio is streamed to a cloud speech recognition service for accurate transcription, so an active internet connection is required. Safari can perform some recognition on-device, but many languages still rely on Apple's cloud. If you go offline mid-session, transcription will pause until connectivity returns. For fully offline transcription, you would need a desktop application that bundles its own speech model rather than a browser tool.
How do I improve transcription accuracy?
Speak clearly at a steady pace, use a quiet environment, and position your microphone close to your mouth. Avoid overlapping voices and background music. Selecting the correct language and dialect from the language picker helps a lot, since the recognizer trains separately for variants like en-US, en-GB, and en-IN. A good external or headset microphone almost always outperforms a built-in laptop mic, especially in echoey rooms.
Is my voice recorded or stored after transcription?
The tool itself does not save your audio or transcripts. However, because Chrome and Edge route audio through Google's speech service, that audio is processed on Google's servers under their privacy policy. Apple does similar processing for Safari. Nothing is stored on this site. If you need maximum privacy, avoid sensitive content, or use an offline desktop transcription tool that processes audio locally without sending it to a third party.
Why does the recognizer stop after a short pause?
The Web Speech API ends a session automatically when it detects silence or after a short period of continuous listening. This is intentional behavior built into the browser to save resources. The tool restarts recognition automatically when you click start again, and many implementations re-arm it after each pause to give a continuous experience. If you see frequent stops, check that no other app is competing for the microphone.
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