Simply drag and drop or select an audio file from your device. The tool extracts metadata from the file (duration, sample rate, channels, bitrate) instantly without playing any audio. All processing happens locally in your browser — your file is never uploaded.

We support all common formats including MP3, WAV, OGG, FLAC, AAC, M4A, WebM, and Opus. The tool uses your browser's native audio capabilities, so support may vary slightly between browsers, but most modern browsers handle these formats well.

No. The duration and other information are obtained without any playback. We use browser APIs to decode just the file’s metadata — no sound is ever output.

Duration is extracted with millisecond precision from the audio stream. For variable bitrate (VBR) files, the duration is still precisely measured from the actual decoded length, not estimated from file size.

Absolutely. This tool runs entirely in your browser. Your files are never uploaded to any server. You can use it offline after the page loads.

The bitrate shown is an average calculated from file size and duration. Lossless formats like FLAC use variable compression, so the bitrate can be lower than CD quality in absolute numbers, yet still lossless. For technical analysis, we recommend a dedicated codec tool.

Yes! The interface is fully responsive and supports tap-to-select from your phone’s file manager, as well as drag & drop on supported mobile browsers.