LeechCraft is a free open source cross-platform modular live environment.
It has modules for everything:
- Full-featured web-browser with support for all major web-standards.
- Advanced multiprotocol modular IM client currently supporting XMPP (Jabber), IRC, WLM/MSN, MRIM and quite a few other protocols and with a bunch of features from metacontacts and Off-The-Record support to audio calls.
- Collection-oriented media player with a lot of features from gapless playback and transcoding for removable devices to social features like recommended artists and nearby events.
- Efficient and fast BitTorrent client with full support for the BitTorrent protocol and all its widespread extensions and magnet links.
- Modular document viewer supporting PDF, DjVu, PostScript, MOBI and other formats.
- RSS feed reader supporting common feed formats with extensions like MediaRSS or GeoRSS as well as with extensive support for Broadcatching and podcasts and their automatic retrieval.
- User-space package manager with its own repository of plugins, themes, icons and much more.
- A bunch of Desktop Environment-enabling modules from window manager controller to power manager, taskbar, tray and a customizable panel.
- The "Summary" tab that displays all your downloads, updates and statuses (like new articles in news feeds).
LeechCraft is a modular system, and by installing different modules you can customize the feature set, keeping off the things you don't need and getting a decent IM client, media player or a feed reader, for example.