Free Online Audio Converter

Convert audio files in your browser. Upload MP3, WAV, WMA, OGG, M4R, 3GPP, OPUS, M4A, AAC, AMR, FLAC, AIFF, or APE files, then create a downloadable output file manually.

Upload audio file

Drop an audio file here, or choose a file from your device. The converter tries to decode the file locally in your browser.

MP3WAVWMAOGGM4R3GPPOPUSM4AAACAMRFLACAIFFAPE

Supported formats

Audio formats supported by the converter page

The converter accepts common audio extensions including MP3, WAV, WMA, OGG, M4R, 3GPP, OPUS, M4A, AAC, AMR, FLAC, AIFF, and APE. Because this version runs locally in the browser, real decoding support depends on the browser and operating system.

MP3WAVWMAOGGM4R3GPPOPUSM4AAACAMRFLACAIFFAPE

How to use

How to convert audio online

  1. Upload your audio file. Choose a file from your device or drag it into the upload area.
  2. Wait for browser decoding. The tool reads the file locally and prepares it for conversion.
  3. Choose an output format. Select MP3, WAV, AIFF, M4R, M4A, AAC, OGG, or Opus depending on browser support.
  4. Set MP3 bitrate if needed. For MP3 output, choose 64, 128, 192, or 320 kbps.
  5. Create the output file. The file is generated in the browser.
  6. Download manually. Click the download button after the converted file is ready.

Browser limits

Why some formats need server conversion

A browser audio converter is fast and private for formats the browser can decode and encode natively. MP3, WAV, AIFF, and some MediaRecorder formats can work without a server. Older or less browser-friendly formats such as WMA, AMR, 3GPP, APE, and guaranteed AAC/MP4 outputs may fail without server-side conversion.

This page keeps the workflow safe for AdSense and user experience: it does not auto-download files, does not claim that every browser can process every codec, and shows a clear message when a format is not supported locally.

FAQs

Audio converter FAQs

1. Which audio formats can I upload?

The upload accepts MP3, WAV, WMA, OGG, M4R, 3GPP, OPUS, M4A, AAC, AMR, FLAC, AIFF, and APE files. Actual decoding depends on browser support.

2. Which formats can this browser converter create?

It can create MP3, WAV, AIFF, and browser-supported MediaRecorder outputs such as M4R, M4A, AAC, OGG, and Opus when available.

3. Why do some files fail to load?

Some formats such as WMA, AMR, 3GPP, and APE are not decoded by every browser. Those formats may need server-side conversion.

4. Are files uploaded to a server?

No. This page tries to decode and convert the file locally in your browser.

5. Does the file download automatically?

No. The tool creates the output first, then you manually click the download button.

6. Can I make an iPhone ringtone file?

Yes, choose M4R output. It uses the browser AAC/MP4 encoder when available, with Safari usually giving the best support.