Audio Converter Tools
Browse every audio converter on WebToolsOnline, from general bulk conversion to dedicated MP3, WAV, AAC, M4A, OGG, OGA, Opus, AIFF, WebM, MP4, MOV, M4V, 3GP, and FLAC format-to-format tools.
Start with the main audio converter
Use the main Audio Converter when you want one flexible tool with bulk uploads, output format selection, bitrate controls, sample-rate settings, mono or stereo output, and ZIP downloads.
Open Audio ConverterAll audio converter tools
These dedicated pages are useful when you want a specific source and output pair, such as MP3 to WAV, M4A to MP3, OGG to Opus, OGA to MP3, WebM to MP3, MP4 to MP3, MOV to MP3, M4V to MP3, 3GP to MP3, or FLAC to AAC. Each tool runs in your browser and keeps files on your device.
MP3 converters
WAV converters
AAC converters
M4A converters
OGG converters
Opus converters
AIFF converters
OGA converters
WebM converters
MP4 converters
MOV converters
M4V converters
3GP converters
FLAC converters
Compressed formats
MP3, AAC, M4A, OGG, and Opus are good for smaller files, sharing, web playback, and mobile devices.
Editing formats
WAV and AIFF are uncompressed choices for editing, sampling, production, and transcription workflows.
Lossless sources
FLAC tools are useful when you start with a high-quality source and want smaller or more compatible output.
Which converter should you choose?
- Choose MP3 for maximum compatibility across devices, apps, and websites.
- Choose WAV or AIFF when you need uncompressed audio for editing or production.
- Choose AAC or M4A for efficient mobile playback, especially on Apple devices.
- Choose OGG or Opus for modern web audio, speech, streaming, and compact files.