30 open-source projects similar to tylertreat/comcast, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
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
Toxiproxy is a framework designed for chaos engineering and network resilience testing. It functions as a programmable TCP proxy that intercepts and routes data streams between clients and servers, allowing developers to simulate unstable network conditions such as latency, bandwidth throttling, and connection failures. The tool provides a control plane that enables the dynamic manipulation of network conditions on active connections in real time. By integrating into automated test suites, it allows for the programmatic injection of faults to validate how distributed systems and microservices
Goreplay is an HTTP traffic mirroring tool designed to capture live network traffic from production environments and replay it into test systems for validation. It includes a specialized Kubernetes traffic capturer that operates as a daemonset to mirror traffic from specific pods using label selectors and namespace filters, alongside a TCP traffic recorder for intercepting raw network packets. The project features a Kafka traffic pipeline for streaming captured payloads to topics or ingesting messages for playback, and an HTTP request transformer to mask sensitive data or rewrite headers and
Mitmproxy is an interactive, programmable network proxy engine designed for traffic analysis and protocol manipulation. It functions as a gateway that intercepts, inspects, and modifies network traffic in real-time, supporting HTTP, HTTPS, WebSocket, DNS, and generic TCP or UDP streams. By acting as a trusted certificate authority, the proxy can dynamically generate and sign certificates to decrypt and analyze secure TLS-encrypted connections. The project distinguishes itself through a highly extensible, event-driven architecture that allows users to automate traffic transformation using cust
GameNetworkingSockets is a UDP networking library providing secure transport, peer discovery, and traffic control systems. It implements a networking layer for reliable and unreliable messaging over UDP, including tools for message fragmentation and reassembly. The project features a peer-to-peer NAT traversal tool for establishing direct host-to-host connections by punching through firewalls and network address translation layers. It secures network traffic through encrypted transport and secure key exchange. The library includes a traffic manager to organize data into prioritized lanes to
pydoll is a Chrome DevTools Protocol automation library and headless browser controller used for web data extraction and parallel browser automation. It controls Chromium-based browsers via direct WebSocket connections, allowing it to manage isolated browser contexts and tabs while bypassing the overhead and detection associated with WebDriver. The project features an anti-bot evasion framework that mimics natural human behavior, including mouse movements generated via Bezier curves and variable typing patterns. It provides specialized stealth capabilities to bypass behavioral analysis and au
KCP is a low-latency transport protocol and reliability layer designed to provide TCP-like guaranteed delivery and ordering over UDP. It implements an automatic repeat request protocol to minimize network jitter and delays, prioritizing timeliness over bandwidth efficiency. The project distinguishes itself through a pluggable congestion controller and flow control logic, allowing the transport layer to be tuned for specific network environments. It includes a NAT keep-alive system that uses periodic heartbeat packets to maintain active communication paths and prevent address translation timeo
Gor is a set of specialized utilities for recording, replaying, and shadowing network traffic to validate system behavior under real-world conditions. It functions as an HTTP traffic recording tool, a network traffic capture engine, and a system for duplicating live production traffic. The project provides capabilities for recording real-time HTTP network traffic and storing it for later playback or analysis. It can duplicate live production network traffic and redirect it to a staging environment in real time, or replay recorded network requests against a target environment to validate syste
Proxy for simulating real-world distributed system failures to improve resilience in your applications.
This project is a terminal-based HTTP client designed for interacting with web services, debugging APIs, and automating network requests. It provides a specialized command-line interface that simplifies the construction of complex HTTP exchanges, allowing users to test and inspect web services directly from the shell. The tool distinguishes itself through a declarative syntax engine that translates shorthand command-line tokens into fully formed HTTP requests, including headers, parameters, and body payloads. It features a modular, plugin-based architecture that enables users to extend core f
rTorrent is a headless BitTorrent client daemon and manager designed for Unix-like systems. It operates as a background process to handle the downloading and uploading of files via the BitTorrent protocol. The application provides a text-based user interface using ncurses for real-time updates and keyboard navigation in a console. It also exposes a socket-based remote control interface, allowing external clients to send commands and query status via a network protocol. The software covers core torrent management capabilities, including file priority configuration, torrent import, and list fi
OHHTTPStubs is an HTTP network mocking library and request interceptor used to simulate server responses for testing application behavior without a live backend. It functions as a network request stubbing tool that captures outgoing network calls and replaces them with predefined mock data, custom status codes, and headers. The library distinguishes itself through its ability to simulate a wide range of network conditions, including artificial latency and connection failures. It supports dynamic response sequencing, allowing the tool to return a series of different responses for the same requ
Augmented Traffic Control is a network condition simulator and Linux traffic control interface. It emulates latency, packet loss, and bandwidth limits to test how applications perform under various network qualities. The project provides a remote network shaping manager that allows users to apply and store network shaping profiles in a database for consistent simulation. This is accessible via a web-based management dashboard and a remote interface, removing the need for a local client installation. The system covers kernel-level traffic shaping to constrain outgoing traffic and includes dat
Ghost-Downloader-3 is a multithreaded download manager and HTTP file downloader designed to accelerate file transfers. It functions as a browser-integrated download client, bridging web extensions to a local application to automate task capture and transfer. The system utilizes a multithreaded transfer engine that employs parallel chunking to maximize bandwidth. It distinguishes itself through a concurrent transfer orchestrator that manages simultaneous download queues, provides dynamic bandwidth throttling, and supports proxy server routing to manage network paths. The application includes
This is an HTTP client library used for sending and receiving network requests. It functions as an HTTP traffic replicator, a multipart form uploader, and an OAuth request signer, while also serving as an HTTP client capable of routing traffic through Unix domain sockets for local inter-process communication. The project distinguishes itself with the ability to import and parse HTTP Archive JSON files to reproduce recorded network traffic. It also provides cryptographic OAuth signing to secure API access using hashing algorithms and supports routing requests through Unix domain sockets using
WebDriverIO is a Node.js test automation framework used for automating functional tests across web browsers and mobile applications. It acts as a WebDriver protocol client that manages remote browser sessions and executes commands against WebDriver and Appium servers to perform end-to-end testing. The framework is distinguished by its ability to control both native and hybrid mobile applications and its support for running automated suites across local machines, remote grids, and cloud device providers. It includes specialized capabilities for coordinating multi-browser interactions and estab
Simplewall is an application firewall manager and network traffic filter that provides a graphical interface for the Windows Filtering Platform. It controls inbound and outbound network access for individual programs and services by intercepting and filtering traffic at the kernel level. The project identifies specific binaries using file hashes to prevent spoofing and allows users to define custom firewall rules based on IP addresses, CIDR ranges, and port numbers. It includes a system for blocking operating system telemetry and managing blocklists of known malicious IP addresses. The tool
This project is an educational resource providing a comprehensive development tutorial for writing and loading eBPF programs using C, Go, and Rust within the Linux kernel. It serves as a technical guide for developing custom logic to execute directly in the kernel. The materials cover specialized domains including kernel observability and tracing, security implementation for intrusion detection, and high-performance network engineering for packet filtering and load balancing. It also includes dedicated manuals for Linux kernel tracing and the use of kprobes, uprobes, and tracepoints. The pro
aria2 is a multi-protocol download manager and BitTorrent client. It functions as a command-line utility and a background daemon capable of retrieving files via HTTP, HTTPS, FTP, SFTP, BitTorrent, and Metalink. The project distinguishes itself by supporting multi-source downloading, which allows a single file to be retrieved from several different sources and protocols simultaneously. It operates as a download server by exposing JSON-RPC and XML-RPC interfaces over HTTP and WebSocket, enabling remote task management from external programs. The system optimizes throughput by splitting files i
BBR is a TCP congestion control implementation designed to maximize throughput and minimize delay by modeling the network bottleneck. It functions as a network throughput optimizer that adjusts data transfer speeds based on estimated bottleneck bandwidth. The project includes a network condition emulator to simulate packet loss and latency for testing transport protocol performance. It also provides a performance analysis toolset for monitoring connection states and visualizing congestion control behavior. The system covers broader capabilities in network performance analysis, connection sta
Mockoon is an HTTP API simulation platform and design tool used to create fake API endpoints that simulate server responses without a backend. It functions as an OpenAPI mock server tool and a JSON API mocking utility, allowing for the rapid iteration of API contracts and the generation of response templates. The project distinguishes itself through a combination of stateful mocking, using a local JSON database to simulate CRUD operations, and the ability to run as a headless API mock server via a command line interface. It supports real-time collaborative editing and AI-assisted prototyping
nock is a Node.js HTTP mocking library and request interceptor. It captures outgoing network traffic to specific hosts and paths, returning predefined responses to decouple applications from external servers during automated testing. The project functions as an API expectation framework to verify that specific calls were made with correct parameters. It includes a traffic recorder that captures real network interactions as fixtures for playback and a network simulation tool to introduce artificial latency or trigger network errors. Its capabilities cover request matching via hostnames, paths
nps is an intranet penetration proxy server that exposes internal network services to the public internet via secure TCP and UDP tunnels. It functions as a traffic forwarder and reverse proxy, enabling external access to local services, remote desktops, and internal APIs. The project is distinguished by a centralized web-based administration interface used to configure tunnels, manage user accounts, and monitor real-time bandwidth metrics. It supports domain-based request routing and provides a mechanism to secure public services using HTTPS encryption through digital certificates. The syste
Taiko is a browser automation framework and web end-to-end testing library used to perform programmatic user actions and verify application behavior. It functions as a headless browser testing tool capable of simulating real interactions and asserting page states in Chromium and Firefox. The project includes a browser interaction recorder that captures live actions and exports them as executable JavaScript automation scripts. It also serves as a web accessibility auditor, analyzing pages to detect accessibility violations and ensure compliance with inclusive design standards. The framework c
HAProxy is a high-performance TCP and HTTP proxy that distributes traffic across multiple backend servers to ensure availability and fault tolerance for critical services. It operates in either TCP or HTTP mode, with an event-driven, single-threaded reactor that handles tens of thousands of connections without context switching, and supports kernel-level data transfer to minimize memory usage and latency. What distinguishes HAProxy is its configuration-file-first design, where all load-balancing rules and runtime behavior are defined in a declarative text file parsed at startup. It embeds a L
Outline Apps is a suite of software components for establishing private proxy networks, consisting of cross-platform proxy clients, server administration interfaces, and identity-based access control systems. It enables the routing of device traffic through secure VPN or Shadowsocks server connections using unique access keys. The project provides tools for deploying and configuring VPN servers on cloud providers or Linux infrastructure. It includes a management interface for administering these servers and a system for generating access keys to authorize devices and enforce individual bandwi
This project is a command-line synchronization client for OneDrive and SharePoint libraries on Linux. It functions as a synchronization engine that aligns local filesystems with cloud storage through bidirectional, unidirectional, or download-only workflows. The client supports headless authentication for servers without web browsers and can be deployed as a background service or within a containerized environment. It enables the management of multiple distinct cloud accounts on a single system and integrates with shared SharePoint sites and document libraries. The synchronization engine inc
Beast is a C++ library for implementing low-level HTTP and WebSocket clients and servers. It functions as an asynchronous networking framework designed to compose non-blocking I/O operations and layered stream stacks for managing concurrent network traffic, specifically utilizing the Boost.Asio asynchronous model. The library provides a comprehensive implementation of the HTTP/1.1 and WebSocket protocols. For HTTP, it includes primitives for parsing and serializing messages with support for chunked transfer encoding, incremental body reading, and request pipelining. Its WebSocket implementati