Convert MP3 to Opus

Convert MP3 audio files to Opus format online for free. High-quality audio conversion with customizable settings. No uploads required - all processing happens in your browser.

How It Works

Upload Your Audio Files

Select one or multiple audio files from your device. Supports all major audio formats including MP3, WAV, FLAC, AAC, OGG, and M4A.

Choose Output Format & Settings

Select your desired output format and adjust quality settings like bitrate, sample rate, and compression level for optimal results.

Download Converted Audio

Your audio files are converted locally in your browser and ready for download in the new format with customized quality settings.

Frequently Asked Questions

What audio formats can I convert between?

Our converter supports 6 major audio formats: MP3 (most compatible), WAV (uncompressed), FLAC (lossless compression), AAC (efficient compression), OGG (open source), and M4A (Apple format). You can convert between any of these formats.

Which audio format should I choose?

Choose MP3 for maximum compatibility across all devices, WAV for uncompressed quality, FLAC for lossless compression with smaller file sizes, AAC for efficient compression, OGG for open-source preference, or M4A for Apple ecosystem compatibility.

Will I lose audio quality during conversion?

Quality depends on your chosen output format and settings. Lossless formats (WAV, FLAC) preserve original quality. For compressed formats (MP3, AAC, OGG), choose higher bitrates (192kbps+) to maintain good quality.

Can I convert multiple audio files at once?

Yes, our tool supports batch conversion. Select multiple audio files and convert them all to the same output format with the same quality settings simultaneously.

Is there a file size limit for audio conversion?

The maximum file size is 200MB per audio file, which can handle several hours of high-quality audio content. This ensures optimal performance in your browser.

How long does audio conversion take?

Conversion time ranges from 30 seconds to 5 minutes depending on your audio file size, input/output formats, and quality settings. Most conversions complete within 1-2 minutes.

Are my audio files uploaded to your servers?

No, all audio conversion happens directly in your browser using WebAssembly technology. Your audio files never leave your device, ensuring complete privacy and security.

Can I adjust the audio quality and bitrate?

Yes, you can customize quality settings including bitrate, sample rate, and compression level. Higher bitrates provide better quality but larger file sizes, while lower bitrates create smaller files with reduced quality.

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