ActivityPub is a decentralized social networking protocol based on the ActivityStreams 2.0 data format. ActivityPub is an official W3C recommended standard published by the W3C Social Web Working Group.
The simplest open protocol that is able to create a censorship-resistant global "social" network once and for all.
The Model Context Protocol (MCP) is an open protocol that enables seamless integration between LLM applications and external data sources and tools. Whether you’re building an AI-powered IDE, enhancing a chat interface, or creating custom AI workflows, MCP provides a...



XMPP, or Extensible Messaging and Presence Protocol, is an open standard for instant messaging and real-time communication, allowing for message exchanges between any two entities on the Internet. It's known for its decentralized and extensible nature.
Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- Windows Phone
- Self-Hosted
The AT Protocol is a networking technology created to power the next generation of social applications. The initial reference application, bsky.app, provides a global-scale microblogging experience.
Cost / License
- Free
- Open Source
Platforms
- Self-Hosted


The Agent Client Protocol standardizes communication between code editors (IDEs, text-editors, etc.) and coding agents (programs that use generative AI to autonomously modify code). The protocol is still under development, but it should be complete enough to build interesting...
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Self-Hosted
- Rust
- Neovim
- Typescript
ProFTPD is a high-performance, extremely configurable, and most of all a secure FTP server, featuring Apache-like configuration and blazing performance.

The Signal Protocol (formerly known as the TextSecure Protocol) is a non-federated cryptographic protocol that provides end-to-end encryption for voice and instant messaging conversations.
Cost / License
- Free
- Open Source (AGPL-3.0)
Platforms
- Self-Hosted
Cost / License
- Free
- Open Source
Application type
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux
Free FTP is a simplified, intuitive, and best of all free FTP client! It uploads and downloads files quickly and reliably, keeps your FTP server settings in one place, and allows you to pause or cancel transfers.
Cost / License
- Free
- Proprietary
Platforms
- Windows

Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Online
- Windows Mobile
- Android
- iPhone
- Java Mobile
- Blackberry
- Chrome OS
- Android Tablet
- BSD
- Windows Phone
- iPad
Packetyzer provides a Windows user interface for the Ethereal packet capture and dissection library. Ethereal is used by network professionals around the world for troubleshooting, analysis, software and protocol development, and education.
Cost / License
- Free
- Open Source
Alerts
- Discontinued
Platforms
- Windows


+2
Cost / License
- Freemium
- Proprietary
Platforms
- Online

ØMQ is a high-performance asynchronous messaging library aimed at use in scalable distributed or concurrent applications. It provides a message queue, but unlike message-oriented middleware, a ØMQ system can run without a dedicated message broker.
Cost / License
- Free
- Open Source
Platforms
- Windows
- Linux
- BSD
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
- Online
- Windows Mobile
- Android
- iPhone
- Java Mobile
- Blackberry
- Chrome OS
- Android Tablet
- BSD
- Windows Phone
- iPad
Boosts your teams productivity by helping you prepare, run and follow up meetings in a transparent and efficient way.
Cost / License
- Paid
- Proprietary
Platforms
- Online
- iPhone
- iPad


+4
Libprotoident is a library that performs application layer protocol identification for flows. Unlike many techniques that require capturing the entire packet payload, only the first four bytes of payload sent in each direction, the size of the first payload-bearing packet in...
Cost / License
- Free
- Open Source
Platforms
- Linux
Built for mobile. Built for speed. No server code. Drag and drop SDK integration = no keyboard required. PacketZoom reduces the number of round trips to the server, so that round-trip latency has less of a chance to slow things...
Cost / License
- Freemium
- Proprietary
Platforms
- Online

FRRouting (FRR) is an IP routing protocol suite for Linux and Unix platforms which includes protocol daemons for BGP, IS-IS, LDP, OSPF, PIM, and RIP.
Cost / License
- Free
- Open Source
Platforms
- Linux
Simple Firewall is a Windows firewall management software, it can manage internet access for all apps on the PC.

Portfolio Estimator - Trademarks is a desktop global estimating software that enables users to accurately predict and analyse the global IP costs of their entire Trademark portfolio.
Cost / License
- Paid
- Proprietary
Platforms
- Windows



Identity Blueprint stands alone as a Protocol-Based, Bio-Feedback Enabled, Identity Transformation Engine. It is not a tool for tracking what you do; it is a system for tracking who you are becoming.
Cost / License
- Paid
- Proprietary
Platforms
- iPhone
- iPad


+3
The Netify Agent uses a modified version of the open-source nDPI deep packet inspection library.
Cost / License
- Free
- Open Source
Platforms
- Linux
- BSD
- OPNsense
- OpenWrt
- ClearOS
- NethServer
- pfSense


File transfers using:
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FTP
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FTPS (Implicit and Explicit FTP over SSL).
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SFTP (FTP over SSH). Login with password or RSA/DSA OpenSSL (Traditional SSLeay PEM) or ConnectBot (PKCS#8 PEM) private key.
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multiple file and directory transfers
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resume transfers support
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clean and.
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