Choose your source file
Open the MP3 converter and select your own recording. The limit is 25 MB, ten minutes and at most two channels. Your browser must be able to decode the audio. Renaming the extension will not repair a damaged file or make an unsupported codec work.
Select a bitrate and start
Choose 128, 192 or 320 kbps and press Create MP3. Decoding and encoding run on your device. Keep the tab open while processing; longer recordings and slower devices need more time.
Listen and download
Preview the MP3 on the results screen and use Download file. The output stays in this browser for one hour and cannot be opened on a different device using the same link. Your source file is unchanged. Keep the original for editing because MP3 is a lossy format.