Bit Comet

Bit Comet 1.55

A powerful C++ BitTorrent Client.

2.5 MB
4.9 4618 votes

BitComet is a p2p file-sharing freeware fully compatible with Bittorrent, which is one of the most popular p2p protocol designed for high-speed distribution of 100MB or GB sized files. BitComet is a powerful, clean, fast, and easy-to-use bittorrent client. It supports simultaneous downloads, download queue, selected downloads in torrent package, fast-resume, chatting, disk cache, speed limits, port mapping, proxy, ip-filter, etc.


  • Clean and free, without any adware or spyware.
  • Completely new core written in C++, stable and fast, very low CPU usage.
  • Multiple simultaneous downloads, ability to select download files in one torrent and set file priority.
  • Ability to limit the upload speed as well as download speed.
  • Intelligent Connection Optimize, Auto Optimization for different connections, runs well using all default settings.
  • Intelligent Rate Control, optimize the upload distribution in order to get the max download rate.
  • Intelligent Disk Cache, decrease the potential damage to the hard disk when high-speed downloading (>500KB/s) by decrease the read / write frequency, extra memory usage is the cost.
  • Intelligent Disk Allocating, no long-time disk allocation, also decrease the disk fragment to almost zero.
  • Intelligent Hash Scan, no time-consuming scanning when seeding / resume.
  • Firewall and NAT Traversal, users behind differect NAT can now connect to each other.

What's New:

  • GUI Improved: add new task categories "Uncompleted" and more in left Channel pane, which can be switch by context menu
  • GUI Improved: add RSS feeds in left Channel pane
  • GUI Improved: Statistics pane displays listening port status of IPv4, IPv6, TCP, UDP separately
  • GUI Improved: Trackers pane displays peer number from PEX
  • GUI Improved: Peers pane displays downloaded and uploaded size of disconnected peers
  • GUI Improved: new Long-Term Seeding disk cache setting in Option window
  • GUI Improved: Statistics pane displays disk cache info of BitTorrent transfer, HTTP download and Long-Term Seeding separately
  • GUI Improved: choose KB/s or MB/s as speed unit automatically
  • GUI Improved: when sort task by time, display tasks of unknown time as earliest
  • GUI Improved: identify video file type of .webm and .ogv
  • GUI Bugfix: toolbar display incorrectly after change Windows UI theme
  • GUI Bugfix: tooltip of task summary will show up even when window not in foreground
  • GUI Bugfix: occasionally crash when display popup window of task download progress
  • Core Improve: support Long-Term Seeding in IPv6 network
  • Core Improve: optimize the disk cache for Long-Term Seeding
  • Core Improve: add UDP incoming status detect for listening port
  • Core Improve: report IPv4, IPv6 address to other peer in dual-stack network, to establish double way connections
  • Core Bugfix: decrease UI lag when executable file download finished
  • Core Bugfix: too many tracker connections when multiple BitTorrent tasks download at the same time
  • Core Bugfix: improve stability of Long-Term Seeding

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