Does converting to WAV improve the audio?

No — and any site implying it does is misleading you. The WAV contains exactly the audio your MP3 already had, just stored uncompressed so editing software can work with it losslessly from that point on.

What WAV format do I get?

16-bit PCM at the source sample rate — the standard flavor accepted by editors, samplers, burners and sound systems.

Why is the WAV so much larger?

MP3 stores a compressed description of the sound; WAV stores every sample raw. Ten times the size is normal and expected.

Can I convert other formats to WAV here, not just MP3?

Yes. The same converter accepts M4A, AAC, OGG, OPUS, FLAC, WMA and even video files, and outputs WAV from any of them. This page simply starts with MP3 to WAV as the expected job.

Can I choose 24-bit or a different sample rate?

Not here. The output is 16-bit PCM at the source's sample rate, which is what editors, samplers and burners expect by default. If a project needs 24-bit or 48 kHz, resample inside your audio software after import.

MP3 to WAV Converter — Free & Private, No Upload

Convert MP3 to uncompressed WAV for editing, sampling or CD burning — right in your browser.

Convert to

Drop your audio here or click to choose

converted on your device — your recordings are never uploaded

WAV is what audio software was built around. Digital audio workstations, samplers, DJ decks, hardware players, telephone systems, church sound desks and CD-burning programs all expect uncompressed PCM, and many of them either refuse an MP3 or decode it badly. If the only copy of a track, a jingle, a voice-over or an old recording is an MP3, converting it to WAV is the step that makes it editable, cuttable and burnable without complaints. This page is set to WAV as the output, so you drop the MP3 and download the result.

It is worth being clear about what the conversion does and does not do. The MP3 is decoded into 16-bit PCM at its original sample rate, which is the standard flavour nearly every program accepts. The sound is identical to the MP3, because WAV only stores the already-decoded audio; nothing that MP3 compression discarded comes back. The file does get much larger, around ten times, since every sample is stored raw. For editing that is the point: from here on, cuts, fades and exports are lossless until you choose to compress again.

The decoding is done by FFmpeg running in your browser, so the recording is not uploaded and there is no size limit beyond your device's memory. M4A, OGG, OPUS, FLAC and WMA files go through the same conversion if your source is not an MP3.

More sizes & options

Frequently asked questions

Does converting to WAV improve the audio?: No — and any site implying it does is misleading you. The WAV contains exactly the audio your MP3 already had, just stored uncompressed so editing software can work with it losslessly from that point on.
What WAV format do I get?: 16-bit PCM at the source sample rate — the standard flavor accepted by editors, samplers, burners and sound systems.
Why is the WAV so much larger?: MP3 stores a compressed description of the sound; WAV stores every sample raw. Ten times the size is normal and expected.
Can I convert other formats to WAV here, not just MP3?: Yes. The same converter accepts M4A, AAC, OGG, OPUS, FLAC, WMA and even video files, and outputs WAV from any of them. This page simply starts with MP3 to WAV as the expected job.
Can I choose 24-bit or a different sample rate?: Not here. The output is 16-bit PCM at the source's sample rate, which is what editors, samplers and burners expect by default. If a project needs 24-bit or 48 kHz, resample inside your audio software after import.

Related tools

🔒 Your files are processed on your device. This tool runs entirely in your browser — nothing is uploaded.