zerx-lab/fluxdown

FluxDown is a free, open-source download manager built to replace paid tools like Internet Download Manager. It handles regular web downloads over HTTP and HTTPS, plus FTP, BitTorrent magnet links, eD2K links, and streaming video formats like HLS and DASH. Its core download engine is written in Rust, which the project says gives it fast, safe performance, and it can split a single download into multiple pieces to speed things up, automatically shifting work away from slow segments to faster ones. Every download's progress is saved to a small local database, so if your computer crashes or loses power, you do not lose your progress and can resume where you left off. FluxDown also includes browser extensions for Chrome, Edge, and Firefox that let it automatically take over downloads started in your browser, along with support for detecting streaming video and audio. One notable feature is a built in server that lets AI assistants like Claude or Cursor manage your downloads directly, using a protocol called MCP. Through this, an AI assistant can add new downloads, check on their progress, pause or resume them, and remove finished or unwanted tasks, all through simple commands rather than you clicking through the app yourself. FluxDown runs on Windows, macOS, Linux, Android, and NAS or home server devices, and is built with Flutter for the interface and Rust for the underlying engine. The project has no ads, no tracking, and does not require creating an account, since everything runs locally on your own device. It is released under the AGPL-3.0 license.