Open-source alternatives to Sharedrop

ShareDrop is a browser-based platform designed for direct, peer-to-peer file exchange between devices. It facilitates data transfer by establishing encrypted connections directly between browsers, ensuring that files are transmitted without being stored on central servers. The system identifies nearby devices on the same local network to enable immediate, configuration-free file sharing. For remote participants, it provides the ability to create private, temporary web rooms that use unique, ephemeral addresses to establish secure connections across different networks. The project coordinates

PairDrop is a cross-platform file sharing application and web-based tool for peer-to-peer data exchange. It enables the transfer of files and text messages between devices using a browser, operating without the need for user accounts or central storage. The project supports both local network file transfers and cross-device sharing over the internet. It provides methods for establishing connectivity through temporary rooms using shared short-codes, QR-code identity exchange, and persistent device pairing to maintain connections across different networks. Connectivity is managed via WebRTC pe

This project is a WebRTC plugin for Flutter that provides a real-time communication framework for implementing peer-to-peer voice, video, and data streaming. It functions as a cross-platform media streamer and hardware media controller, allowing applications to manage device cameras and microphones across mobile, desktop, and web platforms. The framework includes a dedicated peer-to-peer data channel interface for exchanging arbitrary data packets with low latency. It ensures privacy and data integrity through end-to-end encryption for all audio, video, and data transmissions. Broad capabili

VDO.Ninja is a low-latency peer-to-peer media routing service and video streaming platform designed to integrate remote audio and video feeds into professional production workflows. It functions as a WebRTC broadcast integration tool and studio controller, allowing for the direct transmission of high-definition media between publishers and viewers with minimal delay. The platform distinguishes itself through extensive protocol bridging, converting between WebRTC, WHIP, WHEP, SRT, and RTMP to ensure compatibility across diverse network environments and professional studio software. It includes

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

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

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

Send is an end-to-end encrypted file sharing service that encrypts files on the sender's device before upload, ensuring the server never sees plaintext content. It generates secure download links that are designed for single use, automatically removing access after the first successful download, and associates each share with a time-limited access token that expires after a set duration. The service operates without requiring user accounts, lowering friction for ephemeral sharing, and uses cryptographic key derivation to generate decryption keys from the download URL, eliminating server-side

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

Cat-catch is a browser-based media utility designed to detect, capture, and manage web-based video and audio resources. It functions as a comprehensive sniffing and download management system, enabling users to identify hidden or protected media assets directly from active web pages. The tool specializes in reconstructing fragmented streaming protocols, such as DASH and M3U8, into complete files while providing options for real-time stream recording and playback control. The project distinguishes itself through its deep integration with local system environments and external automation tools.

simple-peer is a JavaScript library that provides a wrapper for WebRTC to simplify the establishment of peer-to-peer networking in the browser. It serves as a tool for creating direct device-to-device connections for the transmission of binary data and real-time media streaming. The library manages the exchange of strings and binary buffers through a data channel implementation and provides tools for sharing real-time audio and video tracks between peers. It covers the full lifecycle of peer connectivity, including signaling coordination, session description negotiation, and the gathering of

Upspin is a decentralized naming and storage system that provides an end-to-end encrypted file system. It assigns every user a unique identity and organizes files within a global, permissioned namespace where data is encrypted on the client before transmission. The system separates identity resolution from data storage using a public-key identity provider and a key-server architecture. This allows for decentralized identity management and the resolution of usernames to specific directory and storage server addresses. The project includes a hierarchical access control system that manages read

This repository provides a collection of reference implementations and practical demonstrations for using WebRTC to establish real-time audio, video, and data communication. It contains code samples for negotiating peer-to-peer connections, managing media streams, and utilizing low-latency data channels. The project demonstrates the capture of audio and video from hardware devices, as well as the redirection of canvas element content into media streams. It includes examples of transferring arbitrary text and binary data between peers and managing the negotiation of direct connections. The sa

Notesnook is a cross-platform note-taking application designed for private knowledge management. It functions as a secure personal information manager that prioritizes user data confidentiality by employing client-side end-to-end encryption for all stored notes, attachments, and metadata. By utilizing a local-first synchronization model, the application ensures that information remains accessible offline while maintaining a consistent state across desktop and mobile devices. The platform distinguishes itself through a focus on privacy-centric organization and secure information handling. User

aiortc is a Python implementation of the WebRTC protocol, providing an asynchronous stack for real-time audio, video, and data streaming between peers. It functions as a media engine and data channel implementation that manages peer connections through a non-blocking framework. The library enables the establishment of direct peer-to-peer networking by negotiating session descriptions and connectivity paths. It facilitates secure, bidirectional data transmission via data channels and supports low-latency media streaming using standard codecs. The system includes capabilities for network NAT t

Simpl is an HTML, CSS, and JavaScript example library that provides a collection of minimal functional demonstrations of core web technologies and native browser APIs. It serves as a reference implementation and pattern gallery for frontend development, offering practical examples of how to implement common web features. The project showcases a wide range of browser capabilities, including real-time web communication via WebSockets and WebRTC, responsive web design techniques for adaptive layouts, and the implementation of offline workflows using service workers. It also provides demonstratio

This project is an Android password manager application that provides an end-to-end encrypted vault for storing and synchronizing login credentials, secure notes, and identities. It functions as a secure storage system using zero-knowledge encryption to ensure that only the user can decrypt their stored data. The application integrates directly with the Android system to provide an autofill service that populates usernames and passwords into mobile apps and browser login fields. It also serves as a passkey management wallet for FIDO2 cryptographic passkeys and a time-based one-time password a

PeerJS Server is a WebRTC signaling server and connection broker that coordinates handshakes between clients to establish direct peer-to-peer connections. It functions as a coordination point for discovering peer identifiers and initiating real-time media and data streams between remote browser clients. The project can be deployed as a dedicated signaling server or integrated as Node.js middleware within an existing web application to share a single network port. It manages the lifecycle of peer connections through a centralized signaling process, assigning unique identifiers to clients and m

react-native-webrtc is a mobile framework wrapper and peer-to-peer communication library used to integrate real-time audio, video, and data communication into cross-platform mobile applications. It functions as a tool for capturing device screens and streaming live media content via the WebRTC protocol. The project provides an interface for bidirectional data channels, enabling the exchange of arbitrary data packets between peers without a central relay server. It supports real-time media streaming, including peer-to-peer audio and video transmission and screen capture capabilities. The libr

This project is a peer-to-peer networking tool and communication client designed for exchanging messages and sharing screen control between computers without a central server. It functions as a decentralized system for exchanging data and control signals directly between nodes. The application uses WebRTC for peer-to-peer messaging and remote desktop administration. It incorporates STUN-based NAT traversal and rendezvous servers to establish direct connections between peers hidden behind restrictive firewalls or routers. The software provides capabilities for remote desktop control, includin

Ockam is an end-to-end encryption framework and distributed identity provider designed to establish secure communication between applications and devices. It provides a secure network overlay that utilizes cryptographic identities and attribute-based access control to implement zero trust network access. The project distinguishes itself through metadata-driven multi-hop routing and a pluggable transport layer, allowing encrypted traffic to move across diverse network topologies without requiring virtual IP overlays. It specifically enables secure tunneling for legacy applications by wrapping

Signal-Desktop is a cross-platform messaging application that provides end-to-end encrypted communication. It implements the Signal Protocol to secure messages and voice calls, ensuring that only intended recipients can access content. The application manages asynchronous key exchange and session initialization to maintain secure communication channels between parties who are not online simultaneously. The project distinguishes itself through advanced cryptographic protections, including hybrid post-quantum security that combines classical elliptic curve cryptography with lattice-based algori

This project provides a comprehensive, self-hosted platform for zero-knowledge credential management and enterprise secrets orchestration. It functions as a secure vault that ensures all encryption and decryption processes occur exclusively on the client side, preventing the server from ever accessing plaintext data. By combining identity federation with robust access controls, the system enables organizations to centralize the management of passwords, passkeys, and sensitive infrastructure credentials. The platform distinguishes itself through its focus on both human-centric security and aut

This project is a comprehensive zero-knowledge security suite designed for enterprise credential management, secrets orchestration, and password management. It provides a secure, end-to-end encrypted vault that allows users to store, synchronize, and manage sensitive information, including passwords, passkeys, and infrastructure secrets, across desktop, mobile, and browser environments. The platform distinguishes itself through a strict zero-knowledge architecture where all encryption and decryption occur locally on the client, ensuring that plaintext data remains inaccessible to the server.

Joplin is an open-source, cross-platform note-taking application designed for secure, private knowledge management. It functions as a local-first productivity platform, maintaining a complete relational database on the user's device to ensure offline availability and high-performance data retrieval. The application prioritizes data sovereignty by implementing an end-to-end encryption layer, which secures all information locally with a master key before any synchronization occurs. The platform distinguishes itself through a delta-based synchronization engine that transmits only specific file c

CryptPad is a self-hosted, zero-knowledge office suite designed for real-time collaborative editing and content management. It provides a privacy-centric infrastructure where documents, files, and notes are encrypted in the browser before transmission, ensuring that the server administrator cannot access the underlying data. The platform implements zero-knowledge user authentication, utilizing cryptographic keys to verify identities so that plain text passwords are never stored on the server. To further isolate sensitive operations, the system employs a security architecture that separates th