OPUS to MP3 converter

Make OPUS voice notes and clips play anywhere.

    Runs in your browser. Your files never leave your device.

    How to convert OPUS to MP3

    1. Drop your OPUS files here.
    2. Pick a bitrate.
    3. Download the MP3 files.

    Where OPUS shows up

    • Voice notes exported from WhatsApp and Telegram.
    • Discord and some browser-based voice recordings.
    • Live streaming and video call audio, since OPUS is the default codec for WebRTC.

    Bitrate for voice notes vs music

    SourceSuggested bitrate
    Voice notes, calls128 kbps
    Podcasts, spoken word128 to 192 kbps
    Music clips256 to 320 kbps

    Saving a WhatsApp or Telegram voice note

    Both apps let you forward a voice message to yourself or export the chat to get the underlying file, which usually lands on your device with an .opus or .ogg extension. Once it's saved locally, drop it here the same as any other audio file. There's no way to convert a voice note that's still only inside the app itself, since this tool works with files, not live chats.

    OPUS to MP3 FAQ

    Where do OPUS files come from?

    Voice messages from apps like WhatsApp and Telegram, Discord voice clips, and some browser-based recordings are often saved as OPUS.

    Why convert to MP3?

    OPUS is efficient for streaming and real-time voice calls, but many phones, editors and older apps expect MP3 instead, especially outside the messaging app it came from.

    Will the voice quality hold up?

    For speech, 128 kbps MP3 already sounds very close to the OPUS original, since OPUS is designed to sound good even at low bitrates and MP3 at 128 kbps has plenty of headroom for voice.

    Why does WhatsApp use OPUS for voice notes?

    OPUS gives clear speech quality at a very low bitrate, which keeps voice note file sizes small over mobile data.

    Can I convert music, not just voice notes?

    Yes. OPUS also works well for music, and 256 or 320 kbps MP3 keeps that quality close to the original.

    Can I convert several voice notes at once?

    Yes. Drop them all in and download them one by one or as a ZIP.

    When did OPUS become a standard?

    It was standardized by the IETF in 2012 as RFC 6716, combining two earlier codecs, one built for voice and one for music, into a single format that handles both well. That flexibility is why it ended up as the default for voice messages and video calls.

    Is my file uploaded?

    No. The conversion runs in your browser.

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