whatsmybitrate
Audio Bitrate Analyzer

Know exactly
what bitrate
your audio is.

Drop any audio file. Get its true bitrate, codec, sample rate and full frequency analysis — plus a spectrogram of the whole track — in seconds.

Analyze a File See how it works ↓
Example spectrogram of an audio file

Example spectrogram — frequency content over time

Analysis Results lossy
File
my_track.mp3
Codec
mp3
Sample Rate
48000
Max Frequency
20516.60 Hz
Nyquist Frequency
24000 Hz
Peak Frequency Ratio
0.855
Bit Rate
320 kbps (Stated)
Estimated Bitrate
LOSSY ~320kbps
Estimated Bitrate Numeric
320
Is Lossless
false
plus full debug log of the analysis

Analyze your file

Want to find your song's genre through AI audio analysis?

Scan whole files or batches of files — WhatsMyBitrate on GitHub

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How it works

See what your audio is really made of, not just the file extension.

About Whats My Bitrate

Whats My Bitrate is a free online tool that reveals the true quality of your audio files. Whether you're a producer, engineer, podcaster, or simply curious, we surface details like bitrate, codec and sample rate so you can see what's really going on.

Upload your file, and we'll analyze its metadata and frequency content. For a visual twist, we even generate a spectrogram of the full track.

What you get

Bitratetrue kbps value
CodecMP3 · AAC · FLAC · WAV…
Sample Rate44.1 / 48 / 96 kHz
Channels & Durationlayout & length
Spectrogramoptional, full track
A spectrogram is a map of how frequency content changes over time — brighter colors mean stronger signals.

Features

Built for producers, engineers, and the curious.

True Bitrate

See the actual bitrate of your file — not what the filename or extension claims it is.

Codec & Sample Rate

Identify the exact codec, sample rate, channel layout and duration of any audio file.

Spectrogram

Visualize your track's full frequency content over time as a color spectrogram.

Private & Fast

Files are processed briefly for analysis, then discarded. Nothing is stored or shared.

Reading Room

Articles on lossless, bitrates, and this tool.

Fundamentals

What is a truly lossless file?

Lossless gets thrown around a lot. Here's what it actually means — and why a FLAC file isn't always what it claims to be.

Read more →

Fundamentals

What are the benefits of lossless audio?

Beyond the marketing: the real, practical reasons lossless is worth caring about (and when it isn't).

Read more →

Listening

Can you tell the difference between lossy and lossless?

The honest answer, the science of ABX testing, and why your brain loves to trick you.

Read more →

Sources

Where can I find lossless audio (legally)?

Streaming services, download stores, and the CDs you forgot you owned — a roundup of legitimate lossless sources.

Read more →

Gear

What type of hardware is best for lossless?

Headphones, DACs, stereo systems, and where your money actually makes a difference.

Read more →

Behind the scenes

How does WhatsMyBitrate work?

A peek under the hood: spectral analysis, Nyquist frequencies, and how we sniff out upscaled files.

Read more →

Behind the scenes

Why is WhatsMyBitrate open source?

It started with a suspicious "FLAC" file. Here's the story behind the tool — and why the code is public.

Read more →

Ready to find
your bitrate?

Upload any audio file. Results in seconds. Free.

Analyze a File — It's Free

Privacy & Disclaimer

Your audio stays yours.

Privacy Policy

We value your privacy. Any audio you upload is processed briefly for analysis, then discarded. We do not store, share, or sell your data.

Read more →

Disclaimer

Results may vary based on source and encoding. We do not guarantee completeness or suitability for any purpose.