Audio to Text

Convert your audio recordings to text with our free online transcription tool. Simply upload your files, select your preferred language and quality settings, and download the transcribed result. All processing happens locally in your browser for maximum privacy.

Upload Audio File

Drag & drop or click to select

Supported: MP3, WAV, OGG, Opus, WebM, AAC, FLAC, WhatsApp Audio

Settings

Language *

Quality

Small

Fast processing, good for most audio (~75 MB download)

Medium

Better accuracy, moderate speed (~240 MB download)

Large

Best accuracy, slower processing (~800 MB download)

Include Timestamps

Add [MM:SS] time markers to transcript

Loading AI engine...

Processing happens 100% locally in your browser

How it works

1.Drop or select audio files from your device
2.Choose language and quality settings
3.Click "Transcribe" to convert
4.Download your transcribed text instantly

The entire process takes just seconds. Our audio transcriber uses advanced AI technology to convert speech to text directly in the browser, preserving accuracy and supporting multiple languages.

100% Local Processing

Your files are processed entirely in your browser using JavaScript and WebAssembly technology. Unlike other online audio tools, nothing is uploaded to any server. Your confidential recordings never leave your device.

What happens when you click "Transcribe"?

1.AI Model Download (one-time, ~50-150MB): The Whisper AI model is downloaded to your browser and cached locally. This is a DOWNLOAD, not an upload of your files!
2.Audio Decoding: Your audio file is decoded locally using Web Audio API.
3.Transcription: The AI processes your audio chunk by chunk, entirely in your browser.
4.Result: Text is generated locally - nothing ever leaves your device!

This makes TrustAudio ideal for sensitive recordings, confidential meetings, legal interviews, medical dictations, and personal voice notes that require strict privacy.

No uploads – No servers – GDPR compliant – Works offline (after first use)

Use Cases

–Transcribe WhatsApp voice messages (.opus, .ogg)
–Convert meeting recordings to notes
–Create subtitles for videos
–Transcribe interviews and podcasts
–Convert lecture recordings to text

Supported Audio Formats

MP3WAVOGGOpusWebMAACFLACM4AWhatsApp Audio

All common audio formats are supported. WhatsApp voice messages (.waptt, .opus) work directly!

No file size limits, no watermarks, no registration required. Completely free and unlimited.