Diaspora is distributed and contextual social networking. It is decentralized and provides freedom and privacy. Instead of everyone’s data being held on huge central servers owned by a large organization, diaspora* exists on independently run servers (“pods”) all over the world. You choose which pod to register with, and you can then connect seamlessly with the diaspora* community worldwide.
 
In diaspora* you own your data. You don’t sign over rights to a corporation or other interest who could use it. In addition, you choose who sees what you share, using Aspects. diaspora* pioneered the concept of aspects, which means you can organise your contacts according to their role in your life. This means you can share something just with family members or work colleagues, knowing that no one you don’t want to will be able to see what you post.

Diaspora is distributed and contextual social networking. It is decentralized and provides freedom and privacy. Instead of everyone’s data being held on huge central servers owned by a large organization, diaspora* exists on independently run servers (“pods”) all over the world. You choose which pod to register with, and you can then connect seamlessly with the diaspora* community worldwide.

Diaspora - Distributed and contextual social networking

Embark is a framework that allows you to easily develop and deploy Decentralized Applications (DApps). A Decentralized Application is a serverless html5 application that uses one or more decentralized technologies. Embark currently integrates with EVM blockchains (Ethereum), Decentralized Storages (IPFS), and Decentralized communication platforms (Whisper and Orbit). Swarm is supported for deployment.

Embark - Framework for serverless Decentralized Applications using Ethereum, IPFS and other platforms

OrbitDB is a serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent choice for decentralized apps (dApps), blockchain applications and offline-first web applications.
 
OrbitDB provides various types of databases for different data models and use cases:
<ul>
<li><a href="https://github.com/orbitdb/orbit-db/blob/master/API.md#orbitdblognameaddress" target="_blank">log</a>: an immutable (append-only) log with traversable history. Useful for "latest N" use cases or as a message queue.</li>
<li><a href="https://github.com/orbitdb/orbit-db/blob/master/API.md#orbitdbfeednameaddress" target="_blank">feed</a>: a mutable log with traversable history. Entries can be added and removed. Useful for "shopping cart" type of use cases, or for example as a feed of blog posts or "tweets".</li>
<li><a href="https://github.com/orbitdb/orbit-db/blob/master/API.md#orbitdbkeyvaluenameaddress" target="_blank">keyvalue</a>: a key-value database just like your favourite key-value database.</li>
<li><a href="https://github.com/orbitdb/orbit-db/blob/master/API.md#orbitdbdocsnameaddress-options" target="_blank">docs</a>: a document database to which JSON documents can be stored and indexed by a specified key. Useful for building search indices or version controlling documents and data.</li>
<li><a href="https://github.com/orbitdb/orbit-db/blob/master/API.md#orbitdbcounternameaddress" target="_blank">counter</a>: Useful for counting events separate from log/feed data.</li>
</ul>

OrbitDB is a serverless, distributed, peer-to-peer database. OrbitDB uses IPFS as its data storage and IPFS Pubsub to automatically sync databases with peers. It's an eventually consistent database that uses CRDTs for conflict-free database merges making OrbitDB an excellent choice for decentralized apps (dApps), blockchain applications and offline-first web applications.

orbit-db - Peer-to-Peer Databases for the Decentralized Web

Sia is a new decentralized cloud storage platform that radically alters the landscape of cloud storage. By leveraging smart contracts, client-side encryption, and sophisticated redundancy (via Reed-Solomon codes), Sia allows users to safely store their data with hosts that they do not know or trust. The result is a cloud storage marketplace where hosts compete to offer the best service at the lowest price. And since there is no barrier to entry for hosts, anyone with spare storage capacity can join the network and start making money.
 
 Sia splits apart, encrypts, and distributes your files across a decentralized network. Since you hold the keys, you own your data. No outside company can access or control your files, unlike traditional cloud storage providers.

Sia is a new decentralized cloud storage platform that radically alters the landscape of cloud storage. By leveraging smart contracts, client-side encryption, and sophisticated redundancy (via Reed-Solomon codes), Sia allows users to safely store their data with hosts that they do not know or trust. The result is a cloud storage marketplace where hosts compete to offer the best service at the lowest price. And since there is no barrier to entry for hosts, anyone with spare storage capacity can join the network and start making money.

Sia - Your decentralized private cloud

Hoodie is a generic backend with a client API for Offline First applications. It is an offline first, no backend architecture. Hoodie lets you build apps without thinking about the backend and makes sure that they work great independent from connectivity.

Hoodie - The Offline First Javascript Backend

Yjs is a modular building blocks for building collaborative applications like Google Docs and Figma. Yjs is a high-performance CRDT for building collaborative applications that sync automatically. It exposes its internal CRDT model as shared data types that can be manipulated concurrently. Shared types are similar to common data types like Map and Array. They can be manipulated, fire events when changes happen, and automatically merge without merge conflicts.


Yjs - Modular building blocks for building collaborative applications like Google Docs and Figma

GUN is a realtime, distributed, offline-first, graph database engine. Lightweight and powerful. GUN does state synchronization out of the box. It is peer-to-peer by design, meaning you have no centralized database server to maintain. It has offline support, works even without internet. Users can save data offline and when when the network comes back online GUN will automatically synchronize the data. 
 
GUN is a data­base en­gine that runs every­where JavaScript does — browsers, mo­bile de­vices and servers, al­low­ing you to build ex­act­ly the data sys­tem you want. GUN's se­cu­ri­ty mod­ule is built on strong en­cryp­tion stan­dards and works com­plete­ly de­cen­tral­ized. In oth­er words — real pri­va­cy with no sin­gle point of fail­ure.

GUN is a realtime, distributed, offline-first, graph database engine. Lightweight and powerful. GUN does state synchronization out of the box.  It is peer-to-peer by design, meaning you have no centralized database server to maintain. It has offline support, works even without internet. Users can save data offline and when when the network comes back online GUN will automatically synchronize the data. 

GUN - A realtime, decentralized, offline-first, graph database engine

Ripple is a network of computers which use the Ripple consensus algorithm to atomically settle and record transactions on a secure distributed database, the Ripple Consensus Ledger (RCL). Because of its distributed nature, the RCL offers transaction immutability without a central operator. The RCL contains a built-in currency exchange and its path-finding algorithm finds competitive exchange rates across order books and currency pairs.
 
Ripple enables banks to settle cross-border payments in real-time, with end-to-end transparency, and at lower costs. Banks can provide liquidity for FX themselves or source it from third parties. As Ripple adoption grows, so do the number of currencies and counterparties. Liquidity providers need to maintain accounts with each counterparty for each currency – a capital- and time-intensive endeavor that spreads liquidity thin. Further, some transactions, such as exotic currency trades, will require multiple trading parties, who each layer costs to the transaction. Thin liquidity and many intermediary trading parties make competitive pricing challenging.

Ripple is a network of computers which use the Ripple consensus algorithm to atomically settle and record transactions on a secure distributed database, the Ripple Consensus Ledger (RCL). Because of its distributed nature, the RCL offers transaction immutability without a central operator. The RCL contains a built-in currency exchange and its path-finding algorithm finds competitive exchange rates across order books and currency pairs.

Rippled - Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger in C++

Zcash is an implementation of the "Zerocash" protocol. Based on Bitcoin's code, it intends to offer a far higher standard of privacy through a sophisticated zero-knowledge proving scheme that preserves confidentiality of transaction metadata. Bitcoin and most cryptocurrencies expose your entire payment history to the public. Zcash is the first open, permissionless cryptocurrency that can fully protect the privacy of transactions using zero-knowledge cryptography.
 
 Zcash also enables users to send public payments which work similarly to Bitcoin. With the support for both shielded and transparent addresses, users can choose to send Zcash privately or publicly. Zcash payments sent from a shielded address to a transparent address reveal the received balance, while payments from a transparent address to a shielded address protect the receiving value.

Zcash is an implementation of the "Zerocash" protocol. Based on Bitcoin's code, it intends to offer a far higher standard of privacy through a sophisticated zero-knowledge proving scheme that preserves confidentiality of transaction metadata. Bitcoin and most cryptocurrencies expose your entire payment history to the public. Zcash is the first open, permissionless cryptocurrency that can fully protect the privacy of transactions using zero-knowledge cryptography.

Zcash - Internet Money

LBRY is a protocol that provides a fully decentralized network for the discovery, distribution, and payment of data. It utilizes the LBRY blockchain as a global namespace and database of digital content. Blockchain entries contain searchable content metadata, identities, and rights and access rules. It also provides a data network consists of peers uploading and downloading data from other peers, possibly in exchange for payments, and a distributed hash table, used by peers to discover other peers.
 
LBRY is a free, open, and community-run digital marketplace. You own your data. You control the network. Indeed, you are the network.

LBRY is a protocol that provides a fully decentralized network for the discovery, distribution, and payment of data. It utilizes the LBRY blockchain as a global namespace and database of digital content. Blockchain entries contain searchable content metadata, identities, and rights and access rules. It also provides a data network consists of peers uploading and downloading data from other peers, possibly in exchange for payments, and a distributed hash table, used by peers to discover other peers.

Lbry - A fully decentralized network for distributing data

Blockstack is decentralized DNS and identity. With the Blockstack software, a network of computers collectively maintain a global registry of names. When you run a Blockstack node, you join this network, which is more secure by design than traditional DNS systems and identity systems. This is because the system's registry and its records are secured by an underlying blockchain, which is extremely resilient against tampering and control.

Blockstack - Decentralized DNS for Blockchain Applications

PeerTube is a decentralized video streaming platform using P2P (BitTorrent) directly in the web browser with WebTorrent. It is difficult to build a FOSS video streaming alternatives to YouTube, Dailymotion, Vimeo... with a centralized software. One organization alone cannot have enough money to pay bandwidth and video storage of its server. So there is a need of decentralized network (as Diaspora for example). But it's not enough because one video could become famous and overload the server. It's the reason why P2P protocol is used to limit the server load.

PeerTube - Decentralized video streaming platform using P2P (BitTorrent) directly in the web browser with WebTorrent. 

The world's most private and secure chat - open-source, decentralized, and without global identities of any kind. You can use it from the terminal UI, with all contacts and groups in one window. It is a federated chat system with end to end encryption support and low risk of man in the middle attack. 
 
It solves privacy problem by making both messages and contacts accessible only on client devices, reducing the role of the servers to simple message brokers that only require authorization of messages sent to the queues, but do NOT require user authentication.
 
Simplex messaging protocol (SMP) for messaging via secure persistent queues will serve as the low level protocol for SimpleX chat. It uses different encryption keys for each message queue - the key is passed via existing secure channel - e.g. QR code or another simplex queue.

The world's most private and secure chat - open-source, decentralized, and without global identities of any kind. You can use it from the terminal UI, with all contacts and groups in one window. It is a federated chat system with end to end encryption support and low risk of man in the middle attack. 

SimpleX Chat - Decentralized chat with a focus on users’ privacy

Vertcoin is a digital currency that can be sent between people over the internet. Vertcoin (VTC) stays true to the original vision of cryptocurrency: a financial system owned by its users, the people’s coin. Vertcoin is not controlled by large banks or mining hardware manufacturers and can be mined by anyone profitably. Fairly distributed without a premine, ICO or airdrop, Vertcoin is developed by community members working as volunteers and the project is wholly funded by donations. A finite resource similar to gold, you can rest assured that Vertcoin will keep your money safe from vested interests and ensure that transaction fees are proportionate and shared between a large number of miners. With Vertcoin, you can truly be your own bank.



Vertcoin - Decentralized currency owned by its users

Radicle is a peer-to-peer stack for code collaboration. The Radicle stack builds on IPFS, and works without a centralized server. No hassle with setting up your own hosting, and no need to trust companies with your data. It contains a git repository, plus the associated issues and proposals. Access all the issues and proposals associated with your codebase right from your terminal.

Radicle - A peer-to-peer stack for code collaboration

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