OPUS to MP3 Converter

Convert OPUS to MP3 online. Free, no sign-up.

Click to choose a file or drag and drop it here

OPUS or OGG voice note files only

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How it works

1

Add your OPUS

Choose the OPUS or OGG voice note file (most come from WhatsApp and Telegram voice notes), up to 200 MB.

2

Convert to MP3

One press gives you MP3 at 192 kbps. Long files take a little longer; keep the page open.

3

Save the MP3

Convert WhatsApp and Telegram voice notes. Download it straight to your phone or computer.

OPUS vs MP3 at a glance

FeatureOPUSMP3
Full nameOpusMPEG-1 Audio Layer III
CompressionLossyLossy
Typical file sizeVery small, especially for speechAbout 1.4 MB per minute at 192 kbps
Opens onWhatsApp, Telegram, browsers; many music players and cars cannotEvery player, phone, car and speaker
Best forVoice notes and callsMusic and podcasts that must play everywhere

WhatsApp and Telegram voice messages are saved as Opus audio, with the .opus or .ogg extension. Many music players, car stereos, Windows apps and iPhones cannot play them. Convert them to MP3 here and the voice note plays anywhere.

OPUS vs MP3: what changes

Opus is an excellent codec for speech: a minute of voice can take just a few hundred kilobytes. It is built into messaging apps but poorly supported elsewhere. MP3 is larger but plays on every device. The converted file is a 192 kbps MP3, which keeps every word clear.

When to convert OPUS to MP3

Use it to save an important voice message, share it with someone outside WhatsApp, send it by email, keep it in your music library, or play it on a computer that will not open .opus files.

Before you convert

To get the file from WhatsApp on Android, use a file manager and open the WhatsApp Voice Notes folder (on newer phones it is inside Android/media/com.whatsapp/WhatsApp/Media). On iPhone, long-press the voice note, choose Forward, then the share button, and Save to Files. Only convert messages you have permission to keep and share.

Convert OPUS to MP3 on any device

Android: open the Files app, go to Internal storage › Android › media › com.whatsapp › WhatsApp › Media › WhatsApp Voice Notes, and pick the voice note from the dated folders. iPhone: long-press the voice message, tap Forward, tap the share icon, choose Save to Files, then select it on this page. Telegram Desktop: right-click the voice message and choose Save As.

Common problems and fixes

My WhatsApp voice note will not play outside WhatsApp

WhatsApp saves voice notes as Opus audio (.opus or .ogg). Converting gives an MP3 that any player, email or website accepts.

Where do I find the voice note file?

On Android, use a file manager to open Android/media/com.whatsapp/WhatsApp/Media/WhatsApp Voice Notes. On iPhone, long-press the message, choose Forward, then Share, then Save to Files.

The MP3 is bigger than the voice note

Opus is extremely efficient for speech; 192 kbps MP3 is larger but universally playable. A few hundred kilobytes per minute is normal.

OPUS to MP3: output details

You uploadOPUS or OGG voice note (.opus, .ogg, .oga), usually from WhatsApp and Telegram voice notes
You getMP3 at 192 kbps
Keptfull length; one stereo or mono track
Size limit200 MB per file

Frequently asked questions

My voice note ends in .ogg. Does it work?

Yes. WhatsApp and Telegram often use .ogg for the same Opus audio. This page accepts both .opus and .ogg.

Why does the MP3 file get bigger?

Opus is extremely efficient for speech, so the MP3 version is usually a few times larger. It is still small: about 1.4 MB per minute.

Are my voice notes kept on your server?

No. The file is converted and deleted straight after your download. We do not listen to or store voice notes.