Offline Audio Converter

Convert audio files offline in your web browser without any software downloads or file uploads!

# File Name File Size Actions
How to use

Choose local video or audio files, choose target audio format you want to convert to, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. Each file can be up to 2GB.

Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation. Use online converter instead if this offline converter doesn't work in your web browser.

Here are the main audio formats supported:

# Format Format name
1 MP3 MPEG-1 or MPEG-2 Audio Layer III
2 M4A Audio-only MPEG-4
3 AAC Advanced Audio Coding
4 OGG Ogg Vorbis
5 WAV Waveform Audio File Format
6 WMA Windows Media Audio
7 OPUS Opus Audio Format
8 AU Au Auido Format
9 FLAC Free Lossless Audio Codec
10 AIFF Audio Interchange File Format
11 RA RealAudio Audio
12 MKA Matroska Audio
13 AMR Adaptive Multi-Rate
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