Audio to Text Converter
Convert audio files to text using AI — free, private, runs entirely in your browser.
Convert any audio file to text with AI-powered speech recognition. Drop your file, click transcribe, and get a full text transcript. All processing happens locally — your audio never leaves your device.
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!
Convert Audio to Text Privately
Unlike cloud-based transcription services, this tool runs entirely in your browser. The Whisper AI model is loaded once (about 24 MB for Normal quality, about 41 MB for High) and cached. Your audio is decoded locally and processed by the speech recognition engine. No internet connection is needed after the initial model download.
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.
