Is this converter free?

Yes, WebConverter is completely free to use. There are no hidden fees, no subscription plans, and no limits on the number of files you can convert.

Do my files get uploaded to a server?

No. All conversions happen entirely in your browser using WebAssembly. Your files never leave your device, ensuring complete privacy and security.

What formats are supported?

This converter supports the following formats: MP3, WAV, OGG, MP4, M4A, WebM, FLAC.

Can I use this offline?

Yes! WebConverter works as a Progressive Web App. Once installed, you can convert files without an internet connection.

Are there file size limits?

No, there are no artificial file size limits. The only limit is your device's available memory and processing power.

音频转录

AI音频转录 — 拖放文件获取文字。

Need to transcribe a recording, podcast, or voice memo? Drop your audio file and get a full text transcript with timestamps. Uses OpenAI's Whisper model running locally via WebAssembly — your audio never leaves your device.

MP3WAVM4AOGGFLACWebMMP4

请先选择口语语言和质量，然后下载模型。它完全在浏览器中运行，并会缓存以便下次使用。

口语语言质量

高质量更准确，但需要一次性下载更大的模型。普通质量适合清晰的语音；对于中文等部分语言，高质量明显更好。

将音频文件拖放到此处或点击浏览

支持 MP3, WAV, M4A, OGG, FLAC, WebM, MP4

转录结果

包含时间戳

您已节省约 0 千克 CO₂ （与其他在线转换工具相比）
无数据传输 — 一切都在您的设备上完成！

浏览器中的AI音频转录

此工具使用编译为WebAssembly的Whisper模型。

功能

近零CO₂

典型的服务器转换器消耗网络能源用于上传、数据中心电力用于处理、再次消耗网络用于下载。WebConverter仅使用您设备的CPU — 无数据传输，无服务器足迹。

安装以离线使用

WebConverter是一款渐进式Web应用。在移动设备上点击"添加到主屏幕"，或在桌面地址栏点击"安装"。安装后完全离线运行 — 适合飞机上、偏远地区或网络中断时使用。