Command-line interface for GitHub operations: create PRs, issues, manage repos without leaving the shell.

Official Amazon AWS command-line tool for managing AWS services and resources from the shell.

C library implementing the IETF QUIC protocol for encrypted, multiplexed transport.

C library implementing HTTP/3 and QUIC protocol stack for building HTTP/3 clients and servers.

C library implementing TLS, DTLS, and X.509 certificate handling per GNU standards.

C library implementing HTTP/2 protocol with client and server support.

C library for asynchronous DNS resolution without blocking.

C library for asynchronous I/O and event-driven programming across Unix and Windows.

WHATWG-compliant URL parser library written in modern C++ with high performance across platforms.

MIT Kerberos: network authentication protocol library and utilities for secure ticket-based authentication.

C library implementing the SSH2 protocol with key exchange, encryption, and authentication.

C shared library for IDNA2008 and Punycode encoding of internationalized domain names.

Command-line HTTP/HTTPS/FTP client with support for TLS, compression, and SSH transfers.

Validating recursive caching DNS resolver daemon with DNS-over-TLS/HTTPS support, written in C.

LDAP directory server and client library suite implementing directory protocols for user/group management.

Go client for Cloudflare Tunnel, exposing local services to the internet through Cloudflare's edge network without opening firewall ports.

C library for asynchronous I/O and event-driven programming with support for multiple reactor patterns.

CLI proxy that reduces LLM token consumption by caching and filtering redundant output before sending to Claude or other AI models.

Rsync-like command-line tool for syncing files to cloud storage services (S3, Google Drive, Dropbox, Azure, Box, etc.).

GNU command-line utility to download files from HTTP, HTTPS, and FTP servers.

Fast incremental file transfer utility for synchronizing files locally and over SSH.

C library and command-line tools for connecting to Microsoft SQL Server and Sybase databases.

Shared library providing TCP/IP network stack emulation for virtual machines and user-mode networking.

C++ Thrift library providing base service interfaces for querying stats, counters, and metadata from networked services.

Shared library implementing RIST (Reliable Internet Stream Transport) for robust video streaming over IP networks.

C++14 TLS 1.3 implementation from Facebook supporting full handshake modes, PSK resumption, and early data.

C library for encoding and decoding Internationalized Domain Names (IDN) to ASCII-compatible form.

Port scanning and network discovery utility written in C, identifies open services and OS fingerprinting on IP networks.

C++ networking library for building protocols, clients, and servers with modular abstractions.

Zero Trust VPN client and daemon built on WireGuard, providing secure encrypted connectivity across devices and networks.

Command-line TELNET client for remote terminal connections over TCP/IP.

Command-line tool for pushing, pulling, and managing OCI artifacts in container registries without Docker.

SNMP v1/v2c/v3 agent and command-line client library for network monitoring over IPv4 and IPv6.

Command-line tool to supply SSH password non-interactively without prompting.

Secure Reliable Transport library for low-latency video streaming over unpredictable networks.

C++ wrapper library for AWS runtime libraries providing cross-platform HTTP, MQTT, TLS, and event-loop support.

Command-line utility for uploading, downloading, and syncing data to/from Azure Storage accounts and other cloud providers.

UNIX printing system with IPP support, command-line interfaces (lp/lpr), and a C API for print management.

User-friendly command-line HTTP client written in Python, easier than curl for API testing.

High-performance C library for asynchronous message passing and distributed computing patterns.

Remote terminal application with support for roaming, intermittent connectivity, and responsive local echo.

C99 library for asynchronous AWS S3 client with automatic request splitting and parallel transfers.

Network bandwidth measurement tool for TCP, UDP, and SCTP connections with JSON output and zero-copy mode.

Qt library providing RFC 6455-compliant WebSocket communication for C++ applications.

Qt library providing OAuth authentication support for network services.

Qt library for CAN, Modbus, and serial industrial bus communication on desktop platforms.

Open-source peer-to-peer file synchronization daemon written in Go.

C library implementing TLS/DTLS protocols, X.509 certificates, and cryptographic operations via PSA Crypto API.

Multipurpose relay for bidirectional data transfer between sockets, files, and processes; netcat alternative with advanced features.

mDNS/DNS-SD service discovery daemon and client library for local network service advertisement and discovery.

C library implementing Sun's Transport-Independent RPC (TI-RPC) protocol for network communication.

Command-line utility to download RTMP streaming media.

Go daemon that exposes Claude, Gemini, Codex, and Qwen CLI tools as OpenAI-compatible API services.

Command-line client for managing OpenShift Kubernetes clusters and containerized applications.

C99 shared library implementing HTTP/1.1 and HTTP/2 protocol specifications.

C99 shared library implementing MQTT 3.1.1 and MQTT 5 specifications for publish-subscribe messaging.

C library and command-line client for UPnP IGD port mapping and device discovery.

Network protocol analyzer and packet capture tool (CLI), the industry-standard for deep packet inspection.

DNS library in C with DNSSEC support and high-level packet manipulation API.

GNU SASL library and command-line tool for authentication protocol negotiation.