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: MP4, WebM, AVI, MOV, MKV.

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.

缩短视频

缩短任何视频 — 设置起止点，预览并下载。

Need to shorten a long video? Drop it here, set the start and end times using the visual timeline, preview your selection, and download the shortened clip. All processing happens locally in your browser — your video is never uploaded.

MP4WebMAVIMOVMKVFLVOGVMPEG3GPM4VWMVTS

正在加载视频裁剪器…

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！

私密地缩短视频

WebConverter使用浏览器中的FFmpeg WebAssembly缩短视频。您的文件始终留在您的设备上。

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。