OGG to MP3: convert WhatsApp and Telegram voice messages

Turn .ogg and .opus files, including WhatsApp and Telegram voice notes, into MP3 that plays in any car, player or Windows app. Free, in your browser.

Updated October 19, 2026

Short answer: drop the .ogg or .opus file on Nibbo’s OGG to MP3 converter, keep MP3 selected, click Convert to MP3 and download the result. WhatsApp and Telegram voice messages are OGG files with Opus audio inside, which many car stereos, older players and Windows apps can’t open; as MP3 they play almost everywhere. For a voice note, 64 kbps (voice) and Mono are all you need.

How to convert OGG to MP3 on Nibbo

1. Open OGG to MP3 (the same engine powers the general audio converter).
2. Drop your files on the box that says Drop OGG files, or click it to choose them. You can add many at once, and .opus files work too.
3. Under Save as, check that MP3 is highlighted. The tool remembers your last choice, so if you used it for WAV before, switch back.
4. Pick a Quality. The default is 192 kbps, which is right for music. For a voice message choose 64 kbps (voice), and set Channels to Mono.
5. Click Convert to MP3 (with several files the button reads Convert 5 files to MP3). Files are converted one after another.
6. Each finished file gets a small player so you can listen first. Click Download, or Download all (ZIP) when there are several. The MP3 keeps the original file name.

The conversion runs in your browser: the file is decoded and re-encoded on your device and is never uploaded. That matters for voice messages, which are often private. MP3 is encoded with LAME, the reference MP3 encoder, downloaded once (about 130 KB). If your browser can’t read a file on its own, the tool loads FFmpeg compiled to WebAssembly and decodes it that way.

Getting the voice message out of WhatsApp

A voice note has to be a file on your device before any converter can touch it. If WhatsApp shows a download arrow on the message, tap it (or play the message once) first.

Android. WhatsApp keeps voice notes as .opus files named like PTT-20261019-WA0003.opus. Open your phone’s Files app and go to Internal storage → Android → media → com.whatsapp → WhatsApp → Media → WhatsApp Voice Notes. Notes are sorted into numbered folders by week, newest last. Then open Nibbo in Chrome on the same phone: when you tap the drop box, the file picker can browse to that folder. Alternatively, long-press the message, tap Share and send it to Google Drive or to yourself by email.

iPhone. Tap and hold the voice message, tap Forward, then tap the Share icon at the bottom right and choose Save to Files. Open Nibbo in Safari, tap the drop box, choose Browse and pick the file. The MP3 lands in Files → Downloads.

WhatsApp Web and Desktop. Hover over the voice message, open its menu with the small arrow and choose Download. You get an .ogg file in your Downloads folder, ready to drop on the converter.

Getting it out of Telegram

Telegram voice messages are also Opus in an OGG file. The simplest way is on a computer: in Telegram Desktop, right-click the voice message and choose Save As…; in Telegram Web, right-click it and choose Download. You get an .ogg file. On a phone, forward the message to Telegram on your computer (your Saved Messages chat syncs to every device) and save it there.

Which quality to choose

Converting can’t add quality the original doesn’t have. A WhatsApp or Telegram voice note is recorded in mono at a low bitrate, so a 320 kbps MP3 of it sounds exactly like a 64 kbps one, only five times bigger.

MP3 size is simple math: bitrate × length.

• 64 kbps (voice): about 0.5 MB per minute. Voice notes, lectures, sermons.
• 128 kbps: about 1 MB per minute. Podcasts, music on small speakers.
• 192 kbps (the default): about 1.4 MB per minute. Music.
• 320 kbps: about 2.4 MB per minute. Music, when a site asks for it.

So a 3-minute voice note at 64 kbps is about 1.5 MB. Choosing Mono for a mono recording doesn’t lose anything; it just stops the encoder from storing the same sound twice.

For OGG Vorbis music (game soundtracks, Audacity exports, Linux recordings), use 192 kbps or VBR V2 (~190 kbps); both sound like the original to almost everyone.

What you lose

• A little quality, in theory. Opus and Vorbis are lossy and so is MP3, so you are compressing twice. At 64 kbps or more for speech you won’t hear it. Keep the original if you might need it later.
• Tags. The converter writes plain MP3 audio; title, artist or cover art from the OGG file are not copied over. Voice notes have none, but music files may.
• The original, for evidence. If a voice message is going to a lawyer, an employer or the police, hand over the original .opus or .ogg file too. The MP3 is a re-encoded copy and its file details differ from what WhatsApp saved.

Common problems and fixes

• The file is .opus, not .ogg. That’s the same kind of file. Drop it as it is; no renaming needed.
• The file is 0 KB or won’t convert. The note was never downloaded from WhatsApp. Play it in the chat once, then export it again.
• “Can’t convert this file”. The download was probably cut off, or it isn’t an audio file. Try saving it again; files sent as documents sometimes have a misleading extension.
• The car still won’t play it. Many USB car stereos only read sticks formatted as FAT32 (or exFAT), not NTFS. The MP3 itself is standard; check the stick.
• Opus or M4A buttons are greyed out. Those use your browser’s own encoder and some browsers lack one. MP3 always works.

FAQ

Why can’t I play WhatsApp audio on my computer?

The file is Opus audio in an OGG container, saved as .opus or .ogg. Modern browsers play it, but many media players, car stereos, video editors and upload forms only accept MP3. Converting fixes that.

Is OGG better quality than MP3?

At the same bitrate, Vorbis and especially Opus usually sound better than MP3, which is why messengers use them. But converting OGG to MP3 doesn’t improve anything; it only makes the file play on more devices.

Can I convert many voice notes at once?

Yes. Drop them all on the box, click Convert, then Download all (ZIP).

Does it work on a phone?

Yes, in Chrome on Android and Safari on iPhone. Long recordings use more memory, so a phone may struggle with hours of audio where a computer won’t.

Can I turn the voice message into text instead?

Yes: drop the same file on Transcribe audio, which also runs in your browser. To cut out a part first, use Cut audio.