Which audio formats are supported?

Input: MP3, WAV, OGG (Vorbis), M4A, AAC, FLAC (FLAC and OGG require Chrome or Firefox). Output: MP3 or WAV.

Is there a quality loss when converting?

Converting to WAV is lossless (uncompressed PCM). Converting to MP3 is lossy — higher bitrate (256 or 320 kbps) preserves more quality.

Are my audio files uploaded to a server?

Never. All conversion uses the Web Audio API and runs entirely in your browser. Your files never leave your device.

Why doesn't my OGG or FLAC file work?

OGG and FLAC decoding is not supported by Safari. Use Chrome or Firefox for these formats.

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Audio Converter

Convert MP3, WAV, OGG, M4A, AAC and FLAC audio files. Free, instant, 100% local.

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Free Online Audio Converter — MP3, WAV, OGG, M4A, FLAC

FusionPDF's audio converter lets you convert between the most common audio formats directly in your browser. Convert MP3 to WAV, WAV to MP3, OGG to MP3, M4A to MP3, AAC to MP3, and FLAC to MP3 or WAV — all without uploading your files to any server.

Supported Conversions

Input formats: MP3, WAV, OGG (Vorbis), M4A, AAC, FLAC (Chrome/Firefox). Output formats: MP3 (adjustable bitrate: 128, 192, 256, 320 kbps) or WAV (uncompressed PCM, lossless).

WAV vs MP3 Output

WAV output is uncompressed — perfect for editing or archiving with zero quality loss. MP3 output is compressed — ideal for sharing or storage. At 192 kbps or above, MP3 quality is excellent for most uses.

How to Convert Audio

Drop your audio file into the upload area, select the output format (MP3 or WAV), choose your bitrate if converting to MP3, then click Convert. The file downloads instantly. You can convert multiple files at once — each file downloads as soon as it is processed.

OGG and FLAC Support

OGG (Vorbis) and FLAC decoding relies on the browser's built-in audio decoder. Chrome and Firefox support both formats natively. Safari does not — use Chrome or Firefox for OGG and FLAC files.