- 1 General
- 2 File systems
- 3 File sync
- 4 Client-server
- 5 Usenet
- 6 P2P
- 6.1 DHT
- 6.2 File networks
- 6.3 BitTorrent
- 6.4 Beaker
- 6.5 Dragonfly
- 7 Encrypted / anon
- 8 Downloading
- 9 Physical
to sort and reorder
- Welcome — Magic-Wormhole 0.11.2+76.g995d3f5.dirty documentation - makes it possible to get arbitrary-sized files and directories (or short pieces of text) from one computer to another. The two endpoints are identified by using identical “wormhole codes”: in general, the sending machine generates and displays the code, which must then be typed into the receiving machine.The codes are short and human-pronounceable, using a phonetically-distinct wordlist. The receiving side offers tab-completion on the codewords, so usually only a few characters must be typed. Wormhole codes are single-use and do not need to be memorized.
- https://github.com/claudiodangelis/qr-filetransfer - Transfer files over wifi from your computer to your mobile device by scanning a QR code without leaving the terminal. 
- transfer.sh - Easy and fast file sharing from the command-line. This code contains the server with everything you need to create your own instance. Transfer.sh currently supports the s3 (Amazon S3), gdrive (Google Drive) providers, and local file system (local).
- Bazil is a distributed file system designed for single-person disconnected operation. It lets you share your files across all your computers, with or without cloud services. FUSE is a programming library for writing file systems in userspace, in Go.
- Ori - a distributed P2P file system built for offline operation and empowers the user with control over synchronization operations and conflict resolution. We provide history through light weight snapshots and allow users to verify the history has not been tampered with. Through the use of replication instances can be resilient and recover damaged data from other nodes. 
- https://www.aerofs.com/ - freemium
- Infinit - allows for the creation of heterogeneous storage infrastructure by aggregating various storage resources and unifying them into a UNIX-like Infinit file system.
- lsyncd - designed to synchronize a local directory tree with low profile of expected changes to a remote mirror. Lsyncd is especially useful to sync data from a secure area to a not-so-secure area. Lsyncd watches a local directory trees event monitor interface (inotify or fsevents). It aggregates and combines events for a few seconds and then spawns one (or more) process(es) to synchronize the changes. By default this is rsync. Lsyncd is thus a light-weight live mirror solution that is comparatively easy to install not requiring new filesystems or block devices and does not hamper local filesystem performance.
- inosync daemon leverages the inotify service available in recent linux kernels to monitor and synchronize changes within directories to remote nodes.
- Syncany is an open-source cloud storage and filesharing application. It allows users to backup and share certain folders of their workstations using any kind of storage, e.g. FTP, SFTP, WebDAV, Samba, Amazon S3 or Google Storage. While the basic idea is similar to Dropbox, Syncany is open-source and additionally provides data encryption and more flexibility in terms of storage type and provider.
- Syncthing - Open Source Continuous File Synchronization. Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it's transmitted over the Internet. This is the Syncthing project which pursues the following goals: Define a protocol for synchronization of a folder between a number of collaborating devices. This protocol should be well defined, unambiguous, easily understood, free to use, efficient, secure and language neutral. This is called the Block Exchange Protocol. Provide the reference implementation to demonstrate the usability of said protocol. This is the syncthing utility. We hope that alternative, compatible implementations of the protocol will arise. 
The discovery mechanism can take a minutes or two to kick in.
- Port 22000/TCP (or the actual listening port if you have changed the Sync Protocol Listen Address setting.)
- Port 21027/UDP (for discovery broadcasts on IPv4 and multicasts on IPv6)
Local only access;
<gui enabled="true" tls="false"> <address>127.0.0.1:8080</address> </gui>
<gui enabled="true" tls="false"> <address>0.0.0.0:8080</address> </gui>
Delete the username and password entries from config.xml to reset the login details (do that quickly though!).
- https://github.com/classicsc/syncthingmanager - A command line tool for the Syncthing API. Designed to make setting up remote servers easier. (and for users who prefer the cli)
- Unison is a file-synchronization tool for OSX, Unix, and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating the changes in each replica to the other.
gtk2 gui is a bit dodge, drops any ssh args given to it.
syncing requires a manual start.
- SparkleShare creates a special folder on your computer. You can add remotely hosted folders (or "projects") to this folder. These projects will be automatically kept in sync with both the host and all of your peers when someone adds, removes or edits a file.
- Seafile - an open source cloud storage system with features on privacy protection and teamwork. Collections of files are called libraries, and each library can be synced separately. A library can also be encrypted with a user chosen password. Seafile also allows users to create groups and easily sharing files into groups.
- git-annex allows managing files with git, without checking the file contents into git. While that may seem paradoxical, it is useful when dealing with files larger than git can currently easily handle, whether due to limitations in memory, time, or disk space. git-annex is designed for git users who love the command line. For everyone else, the git-annex assistant turns git-annex into an easy to use folder synchroniser.
- https://git-annex.branchable.com/assistant/ - auto commits and syncs
- https://www.mayrhofer.eu.org/dvcs-autosync - Automatically keep DVCS repositories in sync whenever changes happen by automatically committing and pushing/pulling.
- DirSync Pro is a small, but powerful utility for file and folder synchronization. DirSync Pro can be used to synchronize the content of one or many folders recursively. Use DirSync Pro to easily synchronize files from your desktop PC to your USB-stick (/Externa HD/PDA/Notebook, ...). Use this USB-stick (/Externa HD/PDA/Notebook, ...) to synchronize files to another desktop PC. Using DirSync Pro you can make incremental backups. In this way you'll spare lots of time because you don't have to copy all the files each time you want to update your backup; only new/modified/larger files would be copied. DirSync Pro provides some preconfigured modes (e.g. Mirror, Backup, Contribute, ?) for common synchronization and backup tasks and some custom modes in which the user could set up the synchronization behavior to meet specific wishes.
- Conduit - a synchronization application for GNOME. It allows you to synchronize your files, photos, emails, contacts, notes, calendar data and any other type of personal information and synchronize that data with another computer, an online service, or even another electronic device. Conduit manages the synchronization and conversion of data into other formats
- Csync2 is a cluster synchronization tool. It can be used to keep files on multiple hosts in a cluster in sync. Csync2 can handle complex setups with much more than just 2 hosts, handle file deletions and can detect conflicts. It is expedient for HA-clusters, HPC-clusters, COWs and server farms.
- https://www.getsync.com/ - non-OSS
- Pydio - an open source software that turns instantly any server (on premise, NAS, cloud IaaS or PaaS) into a file sharing platform for your company. It is an alternative to SaaS Boxes and Drives, with more control, safety and privacy, and favorable TCOs.
- https://github.com/sickill/bitpocket - a small but smart script that does 2-way directory synchronization. It uses rsync to do efficient data transfer and tracks local file creation/removal to avoid known rsync problem when doing 2-way syncing with deletion. bitpocket can use any server which you have ssh access to for its central storage. If you have gigabytes of free disk space on your hosting server you can finally make use of it.
- iFolder is a safe and secure way to share and synchronize files across computers and within teams.
- Dat Project - a nonprofit-backed data sharing protocol for applications of the future.
- https://github.com/datproject/dat - Share & live sync files anywhere via command line
- https://en.wikipedia.org/wiki/Dat_(software) - a data distribution tool with a version control feature for tracking changes and publishing datasets. It is primarily used for data-driven science, but it can be used to keep track of changes in any data set. As a distributed revision control system it is aimed at speed, simplicity, security, and support for distributed, non-linear workflows.
- https://en.wikipedia.org/wiki/Direct_Client-to-Client - IRC channel, manual and scripted bots.
- https://en.wikipedia.org/wiki/Napster - central hub, p2p transfer
- https://en.wikipedia.org/wiki/Direct_Connect_(file_sharing) - central hub, p2p transfer
- NCurses Direct Connect - Ncdc is a modern and lightweight direct connect client with a friendly ncurses interface.
- Volafile.io aims to provide a simple real-time filesharing service. Users share files in so called 'rooms', which each consist of a chat and a list of uploaded files. The list of files automatically shows new files as they are uploaded. 
- FileSender - a web based application that allows authenticated users to securely and easily send arbitrarily large files to other users. Authentication of users is provided through SimpleSAMLphp, supporting SAML2, LDAP and RADIUS and more. Users without an account can be sent an upload voucher by an authenticated user. FileSender is developed to the requirements of the higher education and research community.The purpose of the software is to send a large file to someone, have that file available for download for a certain number of downloads and/or a certain amount of time, and after that automatically delete the file. The software is not intended as a permanent file publishing platform
- Firefox Send - lets you share files with end-to-end encryption and a link that automatically expires. So you can keep what you share private and make sure your stuff doesn’t stay online forever.  
- https://github.com/ehuggett/send-cli - Unofficial Python command line (Firefox) Send client
- Lufi - stores files and allows you to download them.Is that all? No. All the files are encrypted by the browser! It means that your files never leave your computer unencrypted. The administrator of the Lufi instance you use will not be able to see what is in your file, neither will your network administrator, or your ISP.The encryption key part of the URL is a anchor (Cf. Fragment Identifier), that means this part is only processed client-side and does not reach the server. Lufi is licensed under the terms of the AGPL.
See Net media#Usenet
- https://github.com/lidarr/Lidarr - a music collection manager for Usenet and BitTorrent users. It can monitor multiple RSS feeds for new tracks from your favorite artists and will grab, sort and rename them. It can also be configured to automatically upgrade the quality of files already downloaded when a better quality format becomes available.
See also Encrypted#Darknet
- pydht - Python implementation of the Kademlia DHT data store.
- http://www.infoanarchy.org/en/The_Circle - based on Chord
- P-Grid is a truly decentralized structured P2P system which does not require central coordination or knowledge. It is based purely on randomized algorithms and local interactions and targeted at environments with low online probabilities of peers. P-Grid differs from other approaches such as Chord, CAN, Pastry, etc. in terms of practical applicability (especially in respect to dynamic network environments), algorithmic foundations (randomized algorithms with probabilistic guarantees), robustness, and flexibility.
- TomP2P is an advanced DHT, which stores multiple values for a key. Each peer has a table (either disk-based or memory-based) to store its values. A single value can be queried / updated with a secondary key. The underlying communication framework uses Java NIO to handle many concurrent connections.
- Tonika is an administration-free platform for large-scale open-membership (social) networks with robust security, anonymity, resilience and performance guarantees.
- SIPDHT project is to provide a library to be used in applications for creating and using SIP based distributed hash tables. The algorithm implemented is loosely based on P2P SIP work (draft-bryan-sipping-p2p-02) and its primary intent is to be a work bench for the specification process.
- sinchana is a scalable and stable DHT implementation written using Apache Thrift. The communication protocol of the DHT is implemented using Thrift. The advantage of Thrift service protocol is it's small message size and the less usage of CPU.
- Forban - a simple link-local opportunistic p2p free software (or how to share files with your local neighbors)
- https://en.wikipedia.org/wiki/WireShare - formerly known as LPE or LimeWire Pirate Edition) is a resurrected version of the LimeWire software (a gnutella p2p-network client). LPE was adapted from LimeWire Basic software to provide similar features to LimeWire Pro; no adware, advertising, or backdoor control. The Ask toolbar integration was removed, along with dependencies to LimeWire servers and remote settings. The software supports Windows, Linux and Mac, and its source code is available on GitHub
- https://sourceforge.net/projects/wireshare/ - Formerly entitled LimeWire Pirate Edition(LPE), WireShare is the newest fork of the original LimeWire open source project. Our sole intention is to create and maintain a bona fide continuation of the project. All work is undertaken on a pro bono basis. The name was changed for legal reasons.
- https://en.wikipedia.org/wiki/FastTrack - used by Kazaa, Grokster, iMesh, and Morpheus
- https://en.wikipedia.org/wiki/Soulseek - a peer-to-peer (P2P) file-sharing network and application. The term Soulseek might refer to (1) one of the two networks, or (2) one of the three official user client interfaces. Soulseek is used mostly to exchange music, although users are able to share a variety of files.
- Soulseek - an ad-free, spyware free, just plain free file sharing network for Windows, Mac and Linux. Our rooms, search engine and search correlation system make it easy for you to find people with similar interests, and make new discoveries!
- Nicotine+ - Hyriand's rewrite of PySoulSeek with a PyGTK GUI is called Nicotine (wayback machine).Nicotine+ is an attempt to keep Nicotine working with the latest libraries, kill bugs, keep current with the Soulseek protocol and add some new features that users want and/or need.
- Museek+ - a GPL licensed file-sharing application for the Soulseek peer-to-peer network. It is written in C++ and runs on GNU/Linux and FreeBSD (it may run on other platforms (MacOSX, ...) but this has not yet been tested).It is based on Museek, a soulseek client written by Hyriand.
- https://en.wikipedia.org/wiki/Perfect_Dark_(P2P) - closed source, japanese
Advanced Direct Connect
- giFT is a collection of various software components geared towards improving the overall usability of a multitude of peer-to-peer file-sharing networks. This goal is accomplished by unifying the components such that a user of the software may choose any of the available interfaces to access any of the available networks. The central application, giftd, uses a plugin-based architecture capable of using multiple networks simultaneously through a single user interface.
- P2P-GUI is a remote web interface for MLdonkey, aMule, rTorrent, Transmission and giFT. This GUI tries to combine different GUIs for p2p programs in one application/project to save overall work and to cover many different needs and tastes.
- XBT - high-performance low-overhead BitTorrent client and tracker.
- PirateBox - a DIY anonymous offline file-sharing and communications system built with free software and inexpensive off-the-shelf hardware.
- https://www.reddit.com/r/pcmasterrace/comments/2y52jq/utorrent_should_really_heed_the_words_of_our_lord/ - not utorrent!
- Tribler Tribler is an application that enables its users to find, enjoy and share content. With content we mean video, audio, pictures, and much more.
- OpenBitTorrent is a bittorrent tracker free for anyone to use. You don't need to register, upload or index a torrent anywhere, all you have to do is to include the OpenBitTorrent tracker URL in your torrent.
- https://backchannel.com/the-inside-story-of-bittorrents-bizarre-collapse-a0766a5442d7#.diyj0hcr4 
- https://popcorntime.sh/ - malware?
- http://fetchr.tv/ - torrent streaming service
- https://github.com/SamyPesse/tv.js - Apple TV for Torrent Streaming
- WebTorrent Desktop - streaming torrent app for Mac, Windows, and Linux. Whether it's video from the Internet Archive, music from Creative Commons, or audiobooks from Librivox, you can play it right away. You don't have to wait for it to finish downloading. 
- PeerTube - A federated video streaming platform using P2P directly in the web browser. Mastodon and WebTorrent.
- https://github.com/alibaba/Dragonfly - an intelligent P2P based file distribution system. It resolves issues like low-efficiency, low-success rate and waste of network bandwidth in large-scale file distribution scenarios such as application deployment, large-scale cache file distribution, data file distribution, image distribution etc. At Alibaba, the system transfers 2 billion times and distributes 3.4PB of data every month, it has become one of the most important piece of infrastructure at Alibaba. 
Encrypted / anon
- WASTE is an anonymous, secure, and encryped collaboration tool which allows users to both share ideas through the chat interface and share data through the download system.
The suggested size for a WASTE network (referred to as a "mesh" by users) is 10-50 nodes, though it has been suggested that the size of the network is less critical than the ratio of nodes willing to route traffic to those that are not.
- Freenet - Share files, chat on forums, browse and publish, anonymously and without fear of blocking or censorship! While users can insert data into the network, there is no way to delete data. Due to the anonymity, no node knows who is the 'owner' of a piece of data. The only way data can be removed is if users don't request the data.
- RetroShare is a Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform. It lets you to securely chat and share files with your friends and family, using a web-of-trust to authenticate peers and OpenSSL to encrypt all communication. RetroShare provides filesharing, chat, messages, forums and channels
- MUTE File Sharing is a peer-to-peer network that provides easy search-and-download functionality while also protecting your privacy.
- OneSwarm is a P2P file sharing service that protects your privacy. It's fast, BitTorrent-compatible, and free!
- OFF is a highly connected peer-to-peer distributed file system. The unique feature of this system is that it stores all of its internal data as meaningless multi-use data blocks. In other words there is not a one to one mapping between a stored block and its use in a accessed file. Each stored block is simultaneously used to access many different files. Individually however, each block is nothing but arbitrary digital white noise.
Free Haven Project
- Free Haven Project aims to deploy a system for distributed, anonymous, persistent data storage which is robust against attempts by powerful adversaries to find and destroy any stored data. This model of decentralized system has been classified as peer-to-peer by recent popular media.
- Tahoe-LAFS is a Free and Open cloud storage system. It distributes your data across multiple servers. Even if some of the servers fail or are taken over by an attacker, the entire filesystem continues to function correctly, preserving your privacy and security.
- Cryptomator - Free client-side AES encryption for your cloud files. Open source software: No backdoors, no registration.
- DTube - the first crypto-decentralized video platform, built on top of the STEEM Blockchain and the IPFS peer-to-peer network. D.Tube aims to become an alternative to YouTube that allows you to watch or upload videos on IPFS and share or comment about it on the immutable STEEM Blockchain, while earning cryptocurrency doing it.
- About D.Tube - Because of the decentralized nature of IPFS and the STEEM blockchain, D.Tube is not able to censor videos, nor enforce guidelines. Only the users can censor it, through the power of their upvotes and downvotes. On DTube, there are no hidden algorithms controlling the visibility or monetization of certain videos over others. All of DTube's data is public, and can be analyzed by anyone with an internet connection. To deliver the best user experience D.Tube runs without advertising. Users remain free to advertise any product or service they would like, directly inside their own videos, at their own risk of losing their subscribers.
- OnionShare - an open source tool for securely and anonymously sending and receiving files using Tor onion services. It works by starting a web server directly on your computer and making it accessible as an unguessable Tor web address that others can load in Tor Browser to download files from you, or upload files to you. It doesn't require setting up a separate server, using a third party file-sharing service, or even logging into an account.
- FlexGet - a multipurpose automation tool for all of your mediaSupport for torrents, nzbs, podcasts, comics, TV, movies, RSS, HTML, CSV, and more.