01
Audio file size calculator
Estimate WAV, AIFF, FLAC, MP3, AAC and Opus sizes from duration, sample rate, bit depth, channels and bitrate. Scale the result across tracks or stems.
Calculate file sizeFree audio tools
Useful answers. Nothing uploaded.
Calculate audio storage before a session or inspect a file's technical details privately. Both tools run entirely in your browser and work without an account.
02
Private audio metadata checker
Check format, duration, sample rate, bit depth, bitrate, channel count and embedded music metadata. Your file stays on your device.
Inspect a filePrivate by default
No upload hidden behind the button.
These tools do their work locally using your browser. Listening Copy does not receive, save or analyze the values you enter or the audio files you inspect.