Just three simple steps
- 1
Drop or select your audio files.
- 2
Choose an output format and 128–320kbps quality.
- 3
Start converting and download the finished files.
Audio Converter
Convert multiple audio files to your preferred format and quality.
Drop audio files here
Drag and drop or use the button below
MP3, WAV, FLAC, OGG, AAC, M4A · up to 10 files · per file 200MB · total 500MB Large files may fail if browser memory is low. The limit is 200MB per file.
- Convert an iPhone M4A recording to a shareable MP3
- Reduce a WAV or FLAC file before sending it by email or messenger
- Create an audio format supported by a particular player or editor
Supported formats
MP3, WAV, FLAC, OGG, AAC, and M4A are supported for both input and output.
Processing limits
Up to 200MB per file · 500MB total
Choose the right audio format and quality for your needs
Use the audio converter when a track will not open in your player or editor, or when you need a smaller file that is easier to share. You can import MP3, WAV, FLAC, OGG, AAC, and M4A files and export them in the same or a different format.
Convert an M4A recording to MP3 if the receiving portal requires MP3. If the original already plays where you need it, keeping it avoids an unnecessary conversion. Saving MP3 as WAV cannot restore lost sound detail. Files are processed in your browser without uploading them.
Choosing a format
Consider MP3 for email or messaging and WAV when an editor needs a working copy. FLAC uses lossless compression, but check the receiving device's support. Neither WAV nor FLAC can improve detail absent from the source.
Choosing a bitrate
Try 128kbps for speech or 192kbps for music. The selector requests a setting; source sampling specifications can limit the actual MP3 bitrate. Our 24kHz speech test exported at 160kbps even when 192–320kbps was selected. Raising a number cannot restore missing detail.
Batch conversion
Convert up to 10 files sequentially with one setting, then download results individually or together as a ZIP file.
Helpful answers before you start
Why does the bitrate selector disappear for WAV and FLAC?
The 128–320kbps selector is for lossy outputs. WAV and FLAC do not use that setting, so a lossless-output note replaces it. This does not restore missing source detail.
Can I convert several audio files at once?
You can select up to 10 files. They are processed one at a time to keep the browser responsive, with a combined size limit of 500MB.
Can I convert an audio file to the same format?
Yes. This can reduce bitrate or create a newly encoded file without source metadata. Avoid repeatedly re-encoding lossy formats such as MP3 or AAC because quality can decline.
Why can large files take a long time to convert?
Conversion uses your device's CPU and memory instead of a server. Closing other demanding apps and using a desktop browser can improve stability, and progress may occasionally appear to pause.
How to Convert WAV to MP3 in Your Browser
Convert WAV to MP3 in your browser and choose the right 128, 192, 256, or 320kbps setting for speech, music, sharing, and storage.
Convert M4A to MP3 in Your BrowserConvert M4A recordings and audio to MP3 in your browser. Learn when conversion helps, which bitrate to choose, and how to avoid unnecessary quality loss.