# MP3 to Opus Converter

Convert MP3 audio to Opus with bitrate, resampling, and channel options

> Canonical page: https://elysiatools.com/en/tools/mp3-to-opus

- **Category:** Media

- **Keywords:** mp3, opus, audio, converter

## Overview

The MP3 to Opus Converter is a high-efficiency tool designed to transform your MP3 audio files into the Opus format, offering superior compression and audio quality. With customizable settings for bitrate, sample rate, and channel configuration, it provides a flexible solution for optimizing audio for web streaming, storage, or specialized playback.

## Inputs

- **Audio File** (file): Select the source audio file
- **Bitrate (kbps)** (select): Choose target bitrate for output
- **Sample Rate** (select): Output sample rate
- **Audio Channels** (select): Select output channel count
- **Keep Metadata (when available)** (checkbox): Preserve title/artist tags when possible

## When to use

- When you need to reduce file size while maintaining high audio fidelity for web applications.
- When you want to standardize audio assets by adjusting bitrates or channel counts.
- When preparing audio files for platforms that prioritize the Opus codec for low-latency streaming.

## How it works

- Upload your source MP3 file using the file selector.
- Adjust your preferred output settings, including bitrate, sample rate, and channel count.
- Toggle the metadata option if you wish to preserve original track information.
- Click the convert button to process your file and download the resulting Opus audio.

## Use cases

- Optimizing podcast episodes for faster loading times on web players.
- Converting music libraries to a more efficient format for mobile storage.
- Standardizing audio assets for consistent playback across different hardware devices.

## Frequently asked questions

### What is the advantage of converting MP3 to Opus?

Opus is a highly versatile codec that provides better audio quality at lower bitrates compared to MP3, making it ideal for internet streaming and bandwidth-sensitive applications.

### Can I change the audio channels during conversion?

Yes, you can choose to keep the original channel count or force the output to Mono or Stereo.

### Does the tool preserve my ID3 tags?

Yes, if you enable the 'Keep Metadata' checkbox, the tool will attempt to preserve title and artist tags from the original MP3 file.

### What is the maximum file size I can upload?

You can upload MP3 files up to 50 MB in size.

### Is the conversion process secure?

Your files are processed locally or in a secure environment and are not stored permanently on our servers.

## Related tools

- [Batch Audio Converter](https://elysiatools.com/en/tools/audio-batch-converter): Convert multiple audio files between different formats like MP3, WAV, FLAC, AAC, OGG, Opus with quality settings and batch processing
- [Audio Codec Swap](https://elysiatools.com/en/tools/audio-codec-swap): Change the codec of an audio file within a chosen output format
- [Audio Set VBR](https://elysiatools.com/en/tools/audio-set-vbr): Convert audio using Variable Bitrate (VBR) for efficient quality
- [Opus to MP3 Converter](https://elysiatools.com/en/tools/opus-to-mp3): Convert Opus audio to MP3 with selectable bitrate, resampling, and channel options
- [WAV Compress](https://elysiatools.com/en/tools/wav-compress): Compress a WAV file by converting to MP3, AAC, OGG, or Opus
- [Podcast Chapter Marker Builder](https://elysiatools.com/en/tools/podcast-chapter-marker-builder): Build every podcast chapter format from one timecoded list: Podcasting 2.0 JSON + RSS tag, ID3v2.4 CHAP+CTOC burned into an MP3, Vorbis comments, mp4chaps, YouTube timestamps and SRT, with a per-player support matrix.
- [Audio Melody Contour Extractor](https://elysiatools.com/en/tools/audio-melody-contour-extractor): Extract a dominant melody path from audio and export MIDI, note events, a pitch contour, SVG, and JSON in one ZIP.
- [Audio to Multitrack MIDI (Draft)](https://elysiatools.com/en/tools/audio-to-multitrack-midi): Split a full mix into stems (drums/bass/other/vocals) and transcribe each to MIDI — a multi-track starting point for transcription

## Samples

- [Copyright-Free MP3 Audio Samples](https://elysiatools.com/en/samples/mp3-samples): Collection of royalty-free audio samples for testing and development purposes including nature sounds, meditation music, and ambient audio
- [Copyright-Free OPUS Audio Samples](https://elysiatools.com/en/samples/opus-samples): Next-generation OPUS audio samples with superior compression and quality, featuring nature sounds and meditation music optimized for modern streaming
- [Copyright-Free FLAC Audio Samples](https://elysiatools.com/en/samples/flac-samples): Lossless FLAC audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music
- [Copyright-Free WAV Audio Samples](https://elysiatools.com/en/samples/wav-samples): Uncompressed PCM WAV audio samples for testing and development, mirrored from MP3 set with nature sounds and meditation music