What is streamcap?

StreamCap is a desktop and web application that records live streams automatically. You point it at a broadcaster's page on any supported platform, and it captures the video as the stream happens. It covers more than 40 platforms, including Chinese services like Douyin, Bilibili, Huya, and Douyu, as well as international ones like TikTok, Twitch, and YouTube. The main reason people use it is to record streams they would otherwise miss. You can set it to watch a channel continuously and start recording the moment a broadcaster goes live, so you never have to babysit the process. There is also a scheduled mode where you tell it specific time windows to check, which is useful if you know a stream starts at a certain hour. Both modes run without you needing to be present. When the recording finishes, the tool can automatically convert the file to MP4 format. During recording it can save in several formats including MKV, MOV, FLV, and MP3 for audio-only captures. It can also send you a notification when a stream starts, so you know the recording is underway. Multiple streams can be recorded at the same time. Installing it is straightforward on Windows and macOS, where a pre-built application is available to download directly. On Linux, it runs in a browser-based web mode accessed at a local address. It can also be run through Docker if you prefer a container setup and do not want to install Python manually. For those who want to run it from source, it requires Python 3.10 or later and the FFmpeg video tool, which handles the actual capture work. The project is open source under the Apache 2.0 license and is built on top of two other libraries, FFmpeg and a package called streamget that handles the platform-specific stream extraction. Documentation and advanced configuration options are available on the project's wiki.