Audio → Audio
OpustoMP3
Drop your files here
Video, audio, images and documents: MP4, MP3, HEIC, DOCX, PDF and 33 more formats. Several files or a link at once.
Choose files
Why convert
Opus — the voice-message format of Telegram and WhatsApp; good even at low bitrates. MP3 — audio that plays everywhere: in the car, on speakers, in any player.
What changes in the file
The sound is encoded once more, so keep the bitrate at least as high as the original.
Which settings to pick
Use 256–320 kbit/s for music; 128 is enough for speech.