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

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.

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.

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.

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

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.

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).

Blocks "known bad" IP-addresses from accessing your machine, especially corporate/governmental agencies. This is a fork of PeerGuardian 2, fixing various Vista/Win7 problems.

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!

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.

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.

librsync has moved to https://github.com/librsync/librsync

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).

[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.

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.

DumpTorrent is a non-interactive text mode program which displays BitTorrent .torrent file information, including size, file names, announce[-list], comment, publisher and info_hash. It can also query (scrape) tracker for current downloader count.

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

Seafile is an open source file sync & share solution designed for high reliability, performance and productivity. Sync, share and collaborate across devices and teams. Build your team's knowledge base with Seafile's built-in Wiki feature. Organize files into libraries. A library can be selectively synced into any device. Reliable and efficient file syncing improves your productivity. Access files in the cloud in local S: drive without syncing them. Extends the local disk space with the massive storage capacity on the server. Files can be used offline too. Features built with enterprise environments in mind: AD/LDAP integration, group syncing, department hierarchy, fine-grained permission control. Edit Wiki documents in Markdown format, with built-in WYSIWYG Markdown editor. Knowledge management becomes very efficient with our full-text search, file tagging and review features. The core of Seafile server is written in C programming language. It is small and has a fantastic performance.

wsdlpull is an efficient and powerful command line utility for dynamic inspection and invocation of WSDL web services.It provides a C++ library with dynamic WSDL invocation API,WSDL parser,Schema parser and Validator and an xmlpull Parser/Serializer.

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.

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 minimal web server with a simple GUI meant for fast and simple file sharing. Aims to be powerful yet easy to use.

CTorrent is a BitTorrent Client program written in C/C++ for FreeBSD and Linux. Fast and small are CTorrent's two strengths.