Is my audio recorded or stored anywhere?

No. All audio processing happens entirely in your browser. Nothing is recorded, uploaded, or stored on any server. Your conversations remain completely private.

Can I transcribe uploaded audio files?

Yes. You can upload MP3, WAV, M4A, and other common audio formats for transcription. The AI model processes the file locally in your browser.

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Transcribe audio to text using Whisper AI

Free AI Speech to Text - Transcribe Audio with Whisper AI

Transcribe audio and video to text using Whisper AI that runs 100% in your browser. No data sent to servers.

AI Speech to Text

Transcribe audio to text using Whisper AI - 100% in your browser

100% Private - No data sent to servers

First time? Model download required

The Whisper AI model (~150MB) will be downloaded and cached in your browser. Future uses will be instant!

Model Selection

Language

Select language for better accuracy, or use Auto Detect

Audio Input

Drag and drop audio file here, or

Supports MP3, WAV, M4A, WEBM, and more

Powered by Whisper AI

Multi-Language

Supports 99+ languages automatically

Fast & Accurate

State-of-the-art transcription quality

100% Private

All processing happens locally

What Is Speech-to-Text (STT)?

Speech-to-text (also called automatic speech recognition or ASR) converts spoken audio into written text. AI-powered STT systems can transcribe meetings, lectures, interviews, podcasts, and voice notes with high accuracy. This technology is essential for creating captions, generating meeting notes, improving accessibility, and enabling voice-controlled applications. Browser-based STT processes audio locally, ensuring your conversations and recordings remain completely private.

How to Use This Free Speech-to-Text Tool

1
Click the microphone button to start recording, or upload an audio file.
2
Speak clearly and the AI will transcribe in real-time.
3
Review and edit the transcribed text as needed.
4
Copy the text or download as a document.
5
Use the transcription for notes, captions, or content creation.

Key Features

Real-time speech transcription with AI
Upload audio files (MP3, WAV, M4A) for transcription
Support for multiple languages and accents
Punctuation and sentence detection
Editable transcription output
Privacy-first — all audio processing happens in your browser

Why Use FreeDevKit?

Transcribe meetings, lectures, and interviews instantly
Privacy-first: audio never leaves your device
Free alternative to Otter.ai, Rev, and Whisper API
No upload required — processes audio locally

Frequently Asked Questions

Accuracy depends on audio quality, background noise, and accent. With clear audio, modern AI models achieve 90-95% accuracy. Noisy environments or heavy accents may reduce accuracy.