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.

在线剪切视频

选择要保留的视频部分 — 剪切并立即下载。

Need to cut a specific section from a video? Drop your file, use the visual timeline to select the portion you want to keep, and download the result. Everything runs in your browser using WebAssembly — your video never leaves your device.

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！

无需重新编码的视频剪切

这个基于浏览器的视频剪切器使用FFmpeg WebAssembly。通过流复制，剪切几乎是即时的，并保持原始质量。

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。