Peer-to-Peer File Transfer Tools

This is a secure peer-to-peer file sharing tool that transfers data directly between devices using end-to-end encryption and ephemeral session codes. Files are split into fixed-size chunks with individual integrity hashes, allowing interrupted transfers to resume from the last verified chunk without starting over. All transferred data stays solely in RAM during transit, never written to persistent storage on either peer or any intermediate relay. Beyond file transfer, the tool also provides real-time instant messaging and live screen sharing over the same peer-to-peer connections. Each sessio

Magic-wormhole is a peer-to-peer file transfer tool used to send files, directories, and text strings between computers. It functions as a secure data relay that establishes ephemeral encrypted network tunnels for ad hoc data exchange without requiring permanent accounts or shared folders. The system utilizes a password-authenticated key exchange to establish a shared secret from a short, human-readable code. This single-use secret handshake ensures the connection is invalidated after a successful pair to prevent replay attacks, while a rendezvous server helps peers exchange connection detail

OnionShare is a privacy-focused data transfer tool and onion service host. It enables the anonymous sharing of files and the hosting of websites by creating temporary hidden services on the Tor network. The software functions as a peer-to-peer system that moves data directly between endpoints without utilizing central third-party servers. It provides capabilities for anonymous file sharing, website hosting, and encrypted peer-to-peer chat, ensuring the identities and IP addresses of participants remain hidden. Communication is secured through end-to-end encryption and Tor-based onion routing

alt-sendme is an accountless peer-to-peer file transfer tool designed for sending files and folders directly between devices. It operates as a decentralized sharing service that utilizes portable access tickets for identity exchange instead of centralized user accounts. The project distinguishes itself through NAT and firewall traversal capabilities, using UDP hole punching and relay-based fallback routing to establish direct connections between remote devices. It supports multi-device data broadcasting, allowing a single file or folder to be shared with multiple recipients simultaneously thr

Croc is a command-line utility for sending files and folders between computers using end-to-end encrypted peer-to-peer connections. It employs elliptic curve encryption and key agreement to secure data transmission between remote endpoints. The tool allows users to coordinate transfers using a shared code phrase and supports the operation of custom relay servers to facilitate connections without relying on public infrastructure. It also includes a proxy client to route encrypted traffic through SOCKS5 proxies. Additional capabilities include resumable data transmission for unstable connectio

Snapdrop is a browser-based peer-to-peer file sharing tool that transfers files directly between devices on the same local network without uploading to any intermediate server. It operates as a progressive web app, meaning it works across devices without installation, and uses end-to-end encryption to ensure only the sender and receiver can read the content being transferred. The application establishes direct browser-to-browser connections using WebRTC, splitting large files into chunks for real-time streaming with progress tracking. It discovers nearby devices on the same subnet through loc

Magic Wormhole is a command-line utility designed for the secure transfer of files and text between two computers. It establishes encrypted, peer-to-peer connections that allow users to move information directly without relying on permanent cloud storage or third-party hosting. The system utilizes a password-authenticated key exchange to verify the identity of both endpoints, requiring only a short, human-readable code to initiate a session. By employing ephemeral key derivation and a relay server that cannot decrypt the transmitted content, the protocol ensures that data remains private and

Plain-app is a multi-purpose toolset for self-hosted device management, providing a web-based dashboard to remotely access files, system settings, and notifications on a mobile device over a local network. It functions as a remote gateway for SMS and notifications, a peer-to-peer file transfer system, and a media server for streaming content to browsers or casting to televisions via DLNA and Chromecast. The project emphasizes secure local connectivity, utilizing TLS and XChaCha20-Poly1305 encryption to protect traffic between the mobile device and the browser. It also includes a distraction-f

Sharedrop is a browser-based file drop application for transferring files directly between devices without requiring software installation or account registration. It uses WebRTC to establish peer-to-peer data channels, allowing files to be exchanged between different operating systems without routing traffic through a central server. The project provides mechanisms for both local and remote connectivity. It identifies active users sharing the same public IP address for immediate local device discovery and allows the creation of private sharing rooms via unique session links for users on diff

Transmission is a lightweight BitTorrent client designed for the efficient exchange of files across decentralized networks. It functions as a high-performance peer-to-peer transfer tool that balances resource consumption with the ability to manage large-scale data distribution on both desktop workstations and headless server environments. The project distinguishes itself through a multi-process architecture that separates the core data transfer engine from the user interface. This design enables remote management of active transfer queues via a browser-based administrative dashboard, allowing

WebTorrent is a JavaScript client library and peer-to-peer file sharing tool that implements the BitTorrent protocol. It enables the seeding and downloading of files via magnet links and info hashes across both the browser and Node.js environments. The project distinguishes itself by using WebRTC data channels to establish direct browser-to-browser networking, allowing decentralized data transfer across different domains without a central server. It specifically focuses on streaming torrent media, enabling incremental video and audio playback by prioritizing sequential pieces of a file before

go-ipfs is an implementation of an IPFS node, providing a distributed filesystem and a content-addressable storage system. It enables the storage and retrieval of data based on unique cryptographic hashes rather than fixed network locations, allowing files to be shared across a peer-to-peer network without a central authority. The system utilizes a distributed hash table and a peer-to-peer gossip protocol to route requests and propagate network state and metadata. It organizes data using a Merkle DAG structure to support efficient deduplication and versioning of content. Capabilities include

LocalSend is a cross-platform utility designed for secure, peer-to-peer file transfers between devices on the same local network. By establishing direct, encrypted communication channels, the application enables users to share files without relying on external servers, cloud storage, or active internet connectivity. The project distinguishes itself through a unified codebase that supports native-looking interfaces across desktop and mobile operating systems. It utilizes automated peer discovery to identify available devices on a subnet and employs end-to-end encryption to ensure data integrit

Syncthing is a decentralized file synchronization engine that maintains consistent data states across multiple devices through peer-to-peer mesh networking. It operates as a background daemon that automatically replicates file creations, modifications, and deletions between trusted nodes without requiring central servers. By utilizing content-addressable block indexing and block-level delta synchronization, the system identifies and transfers only the modified segments of files, ensuring efficient data propagation across heterogeneous environments. The project distinguishes itself through a s

qBittorrent-Enhanced-Edition is a cross-platform desktop application designed to manage the downloading and uploading of files across peer-to-peer networks. It functions as an open-source file sharer, facilitating the decentralized distribution of digital content by breaking files into smaller pieces for efficient transfer. The application utilizes a high-performance library to handle complex protocol specifications and employs a mature widget toolkit to provide a consistent native user interface across Windows, macOS, and Linux. It operates as a network traffic manager, incorporating asynchr

File sharing program using DC and ADC protocols