Free2BoxFree2Box

音频转换器

在 WAV、MP3、OGG 等格式之间转换音频文件

上传音频文件

支持 MP3、WAV、OGG、FLAC、AAC、M4A

使用方法

1

上传您的文件

拖放文件或点击浏览。您的文件留在浏览器中。

2

调整设置

配置选项以获得您所需的精确结果。

3

下载结果

即时处理并下载您的文件——无需等待,无需上传至服务器。

为什么使用此工具

100% 免费

没有隐藏费用,没有付费等级——所有功能完全免费。

无需安装

完全在浏览器中运行。无需下载或安装任何软件。

隐私且安全

您的数据永远不会离开您的设备。不会上传至任何服务器。

支持移动设备

完全响应式设计——在手机、平板或桌面电脑上均可使用。

您的文件保持私密

此工具完全在您的浏览器中处理文件。不会上传至任何服务器——您的数据永远不会离开您的设备。

  • 无服务器上传——100% 客户端处理
  • 不存储数据——关闭标签页时文件即被丢弃
  • 无需账号——无需注册即可立即使用

Understanding Audio Formats and Conversion

Key Takeaways

  • Lossy formats (MP3, OGG, AAC) achieve smaller files by discarding audio data less perceptible to human hearing.
  • Lossless formats (WAV, FLAC) preserve all audio data perfectly, resulting in larger files but zero quality loss.
  • Browser-based conversion uses the Web Audio API and encoding libraries to transform formats on your device.

Audio format conversion is essential for compatibility across devices and platforms. MP3 works everywhere but sacrifices quality. WAV is lossless but large. Understanding the trade-offs helps you choose the right format for every situation. This tool converts between common audio formats directly in your browser.

~90%

MP3 size reduction vs WAV

Common Use Cases

1

Website & App Audio

Convert audio to OGG or MP3 for web delivery. OGG offers better quality-to-size ratio, while MP3 has universal support.

2

Music Production

Convert final mixes from WAV to MP3 for distribution while keeping the original WAV as an archival master.

3

Podcast Distribution

Convert studio recordings to MP3 at 128 kbps mono for podcast hosting, balancing quality with bandwidth costs.

4

Device Compatibility

Convert between formats for specific devices. Some older players only support MP3, while newer platforms may prefer AAC or OGG.

Audio Conversion Tips

Always keep the original uncompressed file. Converting between lossy formats (MP3 → OGG) compounds quality loss.

For music, use at least 192 kbps MP3. For speech and podcasts, 128 kbps MP3 is sufficient.

WAV files are uncompressed — use them for editing and archiving, but convert for sharing or streaming.

Sample rate: 44.1 kHz is CD quality for most uses; 48 kHz is standard for video production.

All audio conversion is performed locally in your browser. Your files are processed on your device and never uploaded to any server.

常见问题