| DC++ | |
|---|---|
 | |
 DC++ 0.777 on Windows 7 | |
| Developer | Jacek Sieka |
| Stable release | 0.883  / 13 September 2025 |
| Written in | C++ |
| Operating system | Windows |
| Type | Peer-to-peer |
| License | GNU GPLv2 or later |
| Website | dcplusplus.sourceforge.io |
| Repository | |
DC++ is afree andopen-source,peer-to-peerfile-sharingclient that can be used for connecting to theDirect Connect network or to theADC protocol. It is developed primarily by Jacek Sieka, nicknamed arnetheduck.
DC++ is a free and open-source alternative to the original client, NeoModus Direct Connect (NMDC);[1] it connects to the same file-sharing network and supports the same file-sharing protocol. One of the reasons commonly attributed to the popularity of DC++ is that it has noadware of any kind, unlike NMDC.[2]
Many other clients exist for the Direct Connect network, and most of these are DC++ "mods": modified versions of DC++, based on DC++'s source code. A partial list of DC++ mods is given below. Some of these clients were developed for specialized communities (e.g. music-sharing communities), or in order to support specific experimental features, or perhaps features that have been rejected from inclusion in DC++ itself. An example of an experimental feature ishashing, which was initially implemented in BCDC++ and later adopted by DC++.
As of 2008[update], DC++ had around 90% market share of the Direct Connect community.[3]
An advantage of thefree and open-source nature of DC++ is that severalmods have been released which add features to the original client.
Many users send patches to DC++ which are included in future releases, but some features are rejected by the developer. Stated reasons for rejecting a patch are because they are coded poorly, or that the feature is frivolous, abusable or overly specialized, and does not belong in the main client. Examples include: upload bandwidth limiting (many users feel that upload bandwidth limiting is a form of cheating, while other users not using afull-duplex network connection can only achieve reasonable download speeds by limiting uploads), colorized chat, specialized operator functions (e.g. client/share checking).
The developers of some forks contribute features and bug fixes backupstream to DC++.
| Client | FOSS | Software license | Active | Release date (latest version) |
|---|---|---|---|---|
| AirDC++ | Yes | GNU GPLv2 or later | Yes | 2023-08-27 (v4.21) |
| AirDC++ Web Client | Yes | GNU GPLv2 or later | Yes | 2024-12-07 (v2.13.2) |
| ApexDC++ | Yes | GNU GPLv2 or later | No | 2018-12-25 (v1.6.5) |
| DC++ | Yes | GNU GPLv2 or later | Yes | 2025-09-13 (v0.883) |
| EiskaltDC++ | Yes | GNU GPLv3 or later | Yes | 2021-03-03 (v2.4.2) |
| FlylinkDC++ | Yes | GNU GPLv2 or later | Yes | 2023-12-31 (r601 build 23343) |
| LinuxDC++ | Yes | GNU GPLv2 or later | No | 2011-04-17 (v1.1.0) |
| RSX++ | Yes | GNU GPLv2 or later | No | 2011-04-14 (v1.21) |
| StrongDC++ | Yes | GNU GPLv2 or later | No | 2010-12-27 (v2.42) |
| TkDC++ | Yes | GNU GPLv2 or later | No | 2010-11-29 (v1.3) |
| Client | Windows | Linux | macOS | BSD | Haiku |
|---|---|---|---|---|---|
| AirDC++ | Yes | No | No | No | No |
| AirDC++ Web Client | No | Yes | No | No | No |
| ApexDC++ | Yes | No | No | No | No |
| DC++ | Yes | No | No | No | No |
| EiskaltDC++ | Yes | Yes | Yes | Yes | Yes |
| FlylinkDC++ | Yes | No | No | No | No |
| LinuxDC++ | No | Yes | No | Yes | No |
| RSX++ | Yes | No | No | No | No |
| StrongDC++ | Yes | No | No | No | No |
| TkDC++ | Yes | No | No | No | No |
| Client | GUI | CLI | WebUI | Programming language | Based on |
|---|---|---|---|---|---|
| AirDC++ | Yes | No | Yes | C++ | StrongDC++ |
| AirDC++ Web Client | No | Yes | Yes | C++ | AirDC++ |
| ApexDC++ | Yes | No | No | C++ | StrongDC++ |
| DC++ | Yes | No | No | C++ | - |
| EiskaltDC++ | Yes | Yes | Yes | C++ | DC++ |
| FlylinkDC++ | Yes | No | Yes | C++ | ApexDC++/StrongDC++ |
| LinuxDC++ | Yes | No | No | C++ | DC++ |
| RSX++ | Yes | No | No | C++ | StrongDC++ |
| StrongDC++ | Yes | No | No | C++ | DC++ |
| TkDC++ | Yes | No | No | C++ | StrongDC++ / DC++ bzr |
| Client | Magnet URI | UPnP | NAT traversal | DHT | Encryption | IPv6 | IDNA | Plugin | Proxy | Hash algorithms | Protocol support |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AirDC++ | Yes | Yes | Yes | No | Yes | Yes | No | Yes | Tiger Tree Hash | TIGR,ADCS | |
| AirDC++ Web Client | Yes | Yes | Yes | No | Yes | Yes | No | Yes | Tiger Tree Hash | TIGR,ADCS | |
| ApexDC++ | Yes | Yes | Yes | Yes | Yes | No | No | Lua,C++ | Yes | Tiger Tree Hash | TIGR,ADCS |
| DC++ | Yes | Yes | Yes | No | Yes | Yes | No | Yes | Tiger Tree Hash | TIGR,ADCS | |
| EiskaltDC++ | Yes | Yes | Yes | Yes | Yes | No | Yes | Lua,Qt Script,QML | Yes | Tiger Tree Hash | TIGR,ADCS |
| FlylinkDC++ | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Tiger Tree Hash | TIGR,ADCS | |
| LinuxDC++ | Yes | Yes | Yes | No | Yes | No | No | Yes | Tiger Tree Hash | TIGR,ADCS | |
| RSX++ | Yes | Yes | Yes | Yes | Yes | No | No | Lua,C++ | Yes | Tiger Tree Hash | TIGR,ADCS |
| StrongDC++ | Yes | Yes | Yes | Yes | Yes | No | No | Yes | Tiger Tree Hash | TIGR,ADCS |
