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Whisper Web
Free WAV Transcription

WAV to Text — Free Online Converter

Upload a WAV file and get a precise text transcript. Uncompressed audio means maximum accuracy. Powered by OpenAI Whisper, running in your browser.

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Best-Quality Transcription From WAV Files

Lossless Audio, Best Results

WAV files preserve full audio quality with no compression artifacts. This gives Whisper the cleanest signal for maximum transcription accuracy.

Completely Private

Your WAV file is processed locally in the browser. Nothing is uploaded to any server. Safe for studio recordings, legal depositions, and medical dictation.

100+ Languages

Transcribe WAV recordings in English, Spanish, French, German, Chinese, Japanese, Korean, Arabic, and 100+ other languages.

Hardware Accelerated

WebGPU acceleration processes WAV files 3–5x faster. Large WAV files are handled efficiently with streaming audio decoding.

Precise Timestamps

Get time-aligned segments for every part of your WAV recording. Perfect for referencing specific moments in long recordings.

TXT & JSON Export

Download as plain text for documents or JSON with timestamps for further processing. One-click clipboard copy included.

How to Convert WAV to Text

1

Upload Your WAV File

Drag and drop your .wav file or click to browse. No format conversion needed — Whisper Web handles WAV natively.

2

Choose Model

Select a Whisper model. Base handles most WAV files well. Use Small or Medium for noisy environments or accented speech.

3

Transcribe

The AI processes your WAV audio locally. Watch the transcript appear segment by segment during processing.

4

Export

Copy to clipboard or download as TXT/JSON. No account or payment required.

Common WAV Transcription Scenarios

Transcribe professional studio recordings
Convert voiceover session WAV files to text for review
Transcribe field recordings from professional audio recorders
Create text from music production session recordings
Transcribe legal deposition audio recorded in WAV format
Convert medical dictation WAV files to text
Transcribe call center recordings saved as WAV
Generate transcripts from scientific research recordings

Frequently Asked Questions

Is WAV better than MP3 for transcription?
Yes. WAV is an uncompressed format that preserves full audio quality. This means fewer artifacts and cleaner signal for the AI model, resulting in slightly better transcription accuracy — especially for challenging audio.
WAV files are large — is there a size limit?
No server-side limit since everything runs locally. Your device's memory is the only constraint. Most modern devices handle WAV files up to several hours without issues.
Does it support different WAV formats (8-bit, 16-bit, 24-bit)?
Yes. Whisper Web uses your browser's native audio decoder which supports all standard WAV formats including 8-bit, 16-bit, 24-bit, various sample rates, and both mono and stereo.
How long does it take to transcribe a WAV file?
With WebGPU acceleration, expect roughly 3–5x real-time speed (a 10-minute file in 2–3 minutes). Without WebGPU, processing is closer to real-time speed.
Can I convert the WAV to MP3 first to speed things up?
You can, but it's not necessary. Whisper Web decodes the audio efficiently regardless of format. The transcription speed is determined by model inference, not audio decoding.
Is my WAV file uploaded anywhere?
No. Your file stays on your device. All processing happens in the browser's WebAssembly sandbox. You can verify by disconnecting from the internet after the page loads.

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Transcribe WAV Files — Free & Private

No signup. No cloud upload. Free local processing. Lossless quality for maximum accuracy.

Upload WAV & Transcribe