Awesome GitHub RepositoriesNetwork Simulation Tools

Comcast is a Linux network emulator and degradation tool used to simulate unstable or slow connections. It functions as a network impairment simulator that injects latency, packet loss, and bandwidth limits into network interfaces to verify how software handles adverse conditions. The utility serves as a TCP and UDP traffic shaper, allowing users to restrict bandwidth and filter traffic by destination address, protocol, and port. These capabilities enable the isolation of specific traffic streams to test application resilience when particular services are degraded. The tool provides broader

Apache JMeter is a Java-based performance testing tool and multi-protocol traffic simulator used to analyze the stability and scalability of servers and networks. It functions as a distributed load testing framework that coordinates remote worker nodes from a single controller to generate high volumes of concurrent traffic. The project is distinguished by its ability to simulate traffic across diverse backend systems, including HTTP, JDBC, LDAP, JMS, FTP, and TCP. It provides a headless command-line interface for automated execution and a reporting system that transforms raw sample logs into

Clumsy is a Windows network fault injection tool that intercepts system-wide network traffic at the kernel level using the WinDivert driver, without requiring proxy configuration or application code changes. It captures and manipulates packets for all running applications, including localhost connections, enabling controlled testing of application behavior under degraded network conditions. The tool provides comprehensive network impairment capabilities including latency simulation, bandwidth throttling, packet loss, corruption, duplication, and reordering. Users can apply these impairments s

Jarvis ist eine Suite von Hilfsprogrammen für Webpack-Projekte, die für Bundle-Analyse, Tree-Shaking-Audits, Debugging von Build-Fehlern und Simulation der Netzwerkleistung konzipiert ist. Sie bietet ein browserbasiertes Dashboard zur Visualisierung von Asset-Verteilungen und zur Überwachung der Gesamtgröße von Bundles und Chunks. Das Projekt enthält einen Netzwerkleistungssimulator, der schätzt, wie Assets über verschiedene Verbindungstypen und Geschwindigkeiten hinweg geladen werden. Es bietet zudem ein Tree-Shaking-Analysetool, das das Verhältnis von shakeable zu nicht-shakeable Modulimporten misst, um Möglichkeiten zur Reduzierung der Bundle-Größe zu identifizieren. Zusätzliche Funktionen decken die Fehlerbehebung bei Build-Fehlern ab, indem rohe Kompilierungsfehler für die Lesbarkeit formatiert und integrierte Links zu externen Suchmaschinen bereitgestellt werden. Das Toolset analysiert zudem statische Assets, um Chunk-Verteilungen zu berechnen und Modulimporttypen zu bewerten.

Experimental userspace toolkit implementing draft-thain-ipv8-02 — the Internet Protocol Version 8 specification. 58 modules, 35 CLI commands, 1827 tests.

NodalArc is an orbital network emulator for testing real routing stacks against moving satellite topology.