MP3 Converter Online
Convert compatible audio files to MP3 online for free. Upload your audio, select MP3 quality, and download the converted recording.
Upload Your Audio File
Select an audio file or drag and drop it here.
Up to 20 MB • Maximum decoded duration: 15 minutes
0%
Choose an audio file to begin.
Browser compatibility: Audio conversion depends on whether your browser can decode the uploaded format. Some formats, including certain FLAC, M4A and AAC files, may not work in every browser. This tool re-encodes the audio, so converting an existing MP3 may reduce quality.
How to Convert Audio to MP3
Upload your audio file, choose an MP3 bitrate, and select the desired channel setting. Click Convert to MP3, review the converted recording, and download your new MP3 file.
Lower bitrates generally produce smaller files, while higher bitrates use more storage and can preserve more audio detail. Conversion happens in your browser, using a JavaScript MP3 encoder fetched from a CDN. Longer recordings may take more processing time and memory.