Convert WAV, FLAC, and M4A to MP3 Online
Summary：Convert audio between MP3, WAV, FLAC, M4A, OGG, WMA, and AC3 in your browser. Compare formats and understand the tradeoffs in file size and quality.
A WAV recording may be too large to send, a car stereo may reject FLAC, or an upload form may require MP3 instead of M4A. The audio format converter creates the format you need in your browser, without installing software or uploading your file.
Supported output formats
mp3, wav, flac, m4a, wma, ac3, and ogg.
How to convert audio
- Open Audio Format Converter and select an audio file.
- Choose an output format; the default is mp3.
- Click Start, then Download when processing finishes.
Audio formats compared
音频格式
- MP3：有损、体积小、支持广泛；适合日常收听、分享和上传。
- M4A with AAC：有损且体积小；常见于 Apple 媒体工作流。
- OGG：常用于压缩网络音频和游戏音效；请检查目标播放器的支持情况。
- WMA：适用于较旧的 Windows 播放系统。
- AC3：家庭影院设备使用的一种有损格式。
- FLAC：无损压缩；比典型的有损文件更大，适合音乐收藏。
- WAV：在此工作流中通常未压缩，文件很大；适合录音、编辑和语音处理。
常见转换
- WAV to MP3：减小录音和配音体积，便于分享。缩减幅度取决于源文件和输出比特率。
- FLAC to MP3：为不支持 FLAC 的播放器准备音频。
- M4A to MP3：将手机录音转换为需要 MP3 的平台格式。
- MP3 to WAV：提供某些编辑器或转写系统所需的格式。
无损输出无法恢复已丢失的细节
Converting a lossy file to a lossless format does not improve its quality.
Turning MP3 into WAV or FLAC stores the decoded audio without another lossy encoding step, but cannot restore what the MP3 encoder discarded. Converting FLAC or WAV to MP3 introduces lossy compression in exchange for a smaller file.
Frequently asked questions
What is the downloaded filename?
It follows Convert_original-name.new-format. The original file is unchanged.
How can I control file size?
Use Audio Compression, which sets a target bitrate using the quality percentage.
Can I convert the sound in a video?
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