Convert MP3 to PCM

Decode MP3 to raw, uncompressed PCM audio online — free and in your browser

Local-first

Drop files here

or click to select files. Supports MP3, WAV, OGG, AC3, FLAC, OPUS, PCM, M4A.

Convert MP3 to PCM online

PCM (Pulse-Code Modulation) is raw, uncompressed audio — the exact sample data with no container or compression. This free tool decodes your MP3 into PCM right in your browser, turning a lossy compressed track into raw samples that game engines, DSP tools and embedded hardware can read directly.

Raw samples for games, DSP and hardware

Many audio pipelines need headerless PCM rather than an MP3 file — game engines that stream raw audio, signal-processing code, microcontrollers and synthesis tools all expect plain samples. Converting MP3 to PCM gives you that raw waveform ready to load, with control over the sample rate and channels.

Runs in your browser, files stay private

Decoding happens entirely on your device with WebAssembly — your MP3 is never uploaded. No sign-up, no watermark and no file limit, so you can convert as many MP3 files to PCM as you need.

Frequently asked questions

How do I convert MP3 to PCM?

Drag your MP3 into the tool (or click to browse), keep PCM as the output, choose the sample rate and channels if needed, and click convert. The PCM file is generated in your browser and downloads instantly — no upload, no account.

What is PCM audio?

PCM (Pulse-Code Modulation) is raw, uncompressed digital audio — plain sample values with no compression or container header. It is the format game engines, DSP tools and embedded systems read directly.

Does converting MP3 to PCM improve quality?

No. PCM is uncompressed but cannot restore detail already lost by MP3 compression. It simply decodes the MP3 into raw samples so other tools can use the waveform without re-decoding.

Can I set the sample rate and channels?

Yes. You can choose the output sample rate (for example 44100 or 16000 Hz) and the channel count (mono or stereo) to match what your game engine, DSP or hardware expects.

Is my MP3 uploaded to a server?

No. The conversion runs locally in your browser through WebAssembly, so your audio never leaves your device.