Transcribe MP3
Transcribe MP3 audio files to text using AI — free, private, no upload required.
Drop an MP3 file to get a full text transcript with timestamps. The Whisper AI model runs entirely in your browser — your MP3 files are never uploaded. Perfect for transcribing podcasts, interviews, lectures, and voice memos.
Choose your spoken language and quality, then download the model. It runs entirely in your browser and is cached for next time.
High quality is more accurate and uses a larger one-time download. Normal works well for clear speech; for some languages such as Chinese, High is noticeably better.
Drop an audio file here or click to browse
Supports MP3, WAV, M4A, OGG, FLAC, WebM, MP4
Transcript
No data transfer — all data stays on your device!
MP3 Transcription
MP3 is the most common audio format. This tool decodes your MP3 file using the browser's built-in audio decoder, then processes it with the Whisper speech recognition model running as WebAssembly. The result is a timestamped text transcript.
Features
Near-Zero CO₂
Server-based converters upload your file, process it remotely, and send it back — consuming network and data-centre energy on every request. WebConverter runs entirely on your device, so the only energy used is your local CPU. No data transfer, no server electricity.
Install for Offline Use
WebConverter works offline as a Progressive Web App. Click "Add to Home Screen" on mobile or the install button in your browser's address bar. Once installed, you can convert files without any internet connection.
