Read audio file information
See the real codec, bitrate, sample rate, channels and length of any audio file.
Runs in your browser. Nothing is uploaded.
A file named .mp3 is not necessarily an MP3, and a file someone swears is 48 kHz stereo is quite often 44.1 kHz mono. The extension is a label anyone can change; the container holds the truth, and this reads the container.
What comes back is the format, the codec, the sample rate, the channel count, the average bitrate and the exact duration, plus the title, artist and album tags if the file carries any. That is enough to answer the questions that actually come up: why one track is quieter than the rest of an album, why a file will not import into an editor that wants 44.1 kHz, or which of two copies is the higher-quality one.
The bitrate is averaged over the file rather than read off a header, because a variable-bitrate file has no single number and the header of one often lies. Nothing is written, nothing is uploaded, and dropping a hundred files in reads a hundred files.
Step by step
- 1Drop in one file or several.
- 2Read what each one actually is.
- 3Nothing is written — the files are only read.
Questions
Why does the bitrate differ from what my player shows?
Most players read a number out of the header. This measures the packets, which is the honest answer for a variable-bitrate file and often differs by a few percent.
Can I edit the tags here?
Not yet — this reads them. Editing audio tags is a separate job and is not built.
What can it open?
MP3, WAV, FLAC, OGG, M4A, AAC and WebM, plus the audio track of a video file. It reads the container, so the file extension does not have to be right.