Open Source C File Sharing Software

Zero Install is a decentralised cross-distribution software installation system. Create one package that works everywhere! With dependency handling and automatic updates, full support for shared libraries, and integration with native package managers

Matroska is an open standard audio/video container format. Visit our homepage at http://www.matroska.org

MLDonkey is a multi-platform multi-network peer-to-peer client.

ApexDC™ is an innovative Direct Connect client based on the DC++ and StrongDC++ projects. Direct Connect provides a rare blend of seamless file sharing and community based chat and messaging between users. ApexDC features plugins and scripting through Lua and much more. Both operators and users alike should find it a pleasant experience. Note: as of May 28th 2016 ApexDC is now primarily distributed as two separate installers one targetting 32bit and the other 64bit operating systems. Additionally XP compatible binaries are now only offered as a separate download from the files section.

A GTK+ Gnutella client, efficient, reliable and fast, written in C. It has been optimized for speed and scalability, with low-memory consumption. It is meant to be left running 24x7, using little CPU and only the configured bandwidth. It is possible to run gtk-gnutella without a GUI or using a shell interface.

RapidCRC is a tool for windows for checking and creating CRC32 and MD5 checksums (.sfv/.md5 files). Goal is to use the fastest available (assembly) implementations for this task. Specialty: direct support for CRC32 checksums stored in filenames.

BitTorrent is a tool for distributed download. Go to http://www.bittorrent.com/ for the latest version, or http://www.bittorrent.com/dl/?C=M;O=D for source and older versions.

Tox is a peer to peer (serverless) instant messenger that focuses on security and privacy. In today's world where digital surveillance is rampant, Tox offers users a communication software alternative that's free from prying eyes and ears, and is, quite literally free and without advertising. Tox comes with all the great features you'd expect from an instant messenger application, including voice calls, video calls, file sharing and screen sharing. Everything done on Tox is encrypted using open-source libraries so you can be assured of completely private conversations. It also has no central servers that can be raided, shut down, or forced to turn over data. There are no corporate interests, no hidden agendas-- just simple, secure and easy to use messaging.

PeerGuardian is a privacy oriented firewall application. It blocks connections to and from hosts specified in huge blocklists (thousands or millions of IP ranges). Its origin seeds in targeting aggressive IPs while you use P2P. PeerGuardian Linux: Not developed actively anymore. Team might still be around. Some unreleased changes on git. Outdated technology. Peerguardian OS X: Not developed anymore. We've lost contact with the OS X developer. PeerGuardian Windows: Not developed anymore. It's highly recommended to use PeerBlock instead, which is a continuation of PeerGuardian's development in Windows, with bug fixes and support for Windows Vista and Windows 7. Collaboration with peerblock.com is welcome! PeerGuardian is an open project. Not only is its source code open for you to read, use, and modify - but the project is open for you to join and contribute in any form (code, documentation, bug reports, web and support).

Enhanced CTorrent is a BitTorrent client for unix-like environments. High performance with minimal system resources and dependencies is a priority.

Providing a tool to apply the data-recovery capability concepts of RAID-like systems to the posting & recovery of multi-part archives on Usenet.

[IMPORTANT] Retroshare is now distributed on Github. Please go to http://retroshare.net to find the latest releases and sources. RetroShare is a cross-platform, secured and decentralized communication system. It lets you to securely chat, share photos, videos, and more with family and friends, using OpenPGP to authenticate peers and OpenSSL to encrypt all communication.

Utility to test and create .sfv and test .par on Unix and Windows. Easy scripting. Also Handy in dos environment. Recursive directories handling. Tested files database.

Command line torrent viewer and hash checker. Displays metadata and file catalog from a .torrent file. Offline verifies content hashes of downloaded files against torrent. Linux or Windows, Windows binary included.

A collection of single floppy disk based Network Attached Storage (NAS) Server Operating Systems, designed to transform a basic computer into a dedicated SMB/CIFS, FTP or NFS file server.

LibreWeb is an open-source decentralized web browser, leveraging IPFS. What would you do differently; if you could reinvent The Internet in the 21st century? With all the knowledge and new technologies available today. I was inspired by Douglas Engelbart, Tim Berners-Lee, and Ted Nelson as well as projects like IPFS, Jekyll, ARPANET, and more. Everyone should be able to easily read and create a site/blog/news page and publish the content online (without minimal technical knowledge). Built-in easy-to-use editor (whenever you want to publish some content without programming language knowledge). Decentralized (no single-point of failure or censorship), like P2P, DHT, and IPFS. Versioning/revisions of content and documents (automatically solves broken 'links', that can't be happy anymore). Publisher users should be able to add additional information about the document/page, eg. title or path (similar in how Jekyll is using the YML format for meta data).

Quiet is an alternative to team chat apps like Slack, Discord, and Element that does not require trusting a central server or running one's own. In Quiet, all data syncs directly between a team's devices over Tor with no server required. Quiet is not audited and should not be used when privacy and security are critical. It lacks basic features and probably won't replace your Slack or Discord yet. That said, it works surprisingly well and we use it daily as a Slack replacement. Quiet is for fans of software freedom, decentralization and privacy tech, and for anyone craving a future where humanity can collaborate effectively online without trusting our communities, networks, and data to giant corporations. Quiet is written (mostly) in TypeScript, with Electron and React Native frontends, and welcomes outside contributions!

Some useful helper tools for the eDonkey2000 and Overnet file-sharing programs (formerly ed2k_tools)

Feb. 7, 2019 Transmission is a respected Fast, Easy, and Free BitTorrent Client, as from their site https://transmissionbt.com/about Unofficial Windows build runs perfect either Windows service or daemon. 32 bit and 64 bit versions. 32 (runs everywhere), 64 only 64-bit Windows. Decision made to maintain choice 2.7x core rather than somewhat buggy 2.8x-2.9x cores. That's why you will see infrequent and less bug fixes than official branches. All the features of 2.8x-2.9x (except rename). Run this solid 2.77+ port for extended days, it doesn't crash or lock. Prime for seedbox use. The included remote GUI port is fine tuned to the daemon released here. Temporary piece support. https://trac.transmissionbt.com/ticket/532 plus many featured enhancements! Tested, stable enhancements users requested. Specifically modified and bug tested for Linux GCC and Windows (cygwin gcc/g++) compilers. Current release 14734-18 020619 https://github.com/cfpp2p/transmission/releases

A cross-platform Duke3D (Duke Nukem 3D) port which provides many new features for mod authors, including an enhanced scripting system and OpenGL renderer. Go to http://www.eduke32.com for downloads and http://bit.ly/dn_3d to get the game!

An Open Source Linux/Unix version of the hub software for Direct Connect. This project is looking for new maintainers.

UNFS3 is a user-space implementation of the NFSv3 server specification. It provides a unified mountd and nfsd program and so far runs under Linux, NetBSD, and Solaris.

Emu10k1 sound driver

Feb. 7, 2019 Transmission is a respected Fast, Easy, and Free BitTorrent Client, as from their site https://transmissionbt.com/about Unofficial Linux and Window builds run perfect either service or daemon. 32 bit and 64 bit versions. 32 (runs everywhere), 64 only 64-bit Windows. Decision made to maintain choice 2.7x core rather than somewhat buggy 2.8x-2.9x cores. That's why you will see infrequent and less bug fixes than official branches. All the features of 2.8x-2.9x (except rename). Run this solid 2.77+ port for extended days, it doesn't crash or lock. Prime for seedbox use. The included remote GUI port is fine tuned to the daemon released here. Temporary piece support. https://trac.transmissionbt.com/ticket/532 plus many featured enhancements! Tested, stable enhancements user requested. Specifically modified and bug tested for Linux GCC and Windows (cygwin gcc/g++) compilers. Current release 14734-18 020619 https://github.com/cfpp2p/transmission/releases

Graphical user interface for the Overnet and eDonkey2000 file-sharing command line clients. Runs on Linux, *BSD, MacOSX, and MS Windows.