Open-source alternatives to Pulse

Reactotron is a desktop application and collection of developer tools designed for monitoring runtime errors, analyzing network requests, and inspecting state within JavaScript and React environments. It serves as a debugger for both React JS and React Native projects, providing a visual interface to monitor internal application state and performance. The tool provides specialized inspectors for React Native mobile applications and React web applications. It allows for the real-time tracking of state changes and the dispatching of actions to a state manager to test different application scena

Reactotron is a desktop application for inspecting the state, network traffic, and logs of React and React Native applications. It serves as a specialized debugging interface for monitoring network requests, performance metrics, and state transitions in JavaScript and mobile application frameworks. The tool provides a real-time interface for tracking data flow and dispatching actions to test different state transitions. It includes a network traffic monitor to intercept and display API requests and responses, as well as a performance analysis tool for capturing execution data and measuring op

Moloch is a full packet capture system and network forensics platform designed for large scale network traffic recording and indexing. It functions as a distributed packet indexer that stores raw data in PCAP format for deep packet analysis and security investigations. The system distinguishes itself through a decentralized architecture that distributes capture and viewing components across multiple nodes to handle high volumes of network traffic. It utilizes a web-based management interface for browsing network sessions and provides a programmable API for exporting captured traffic and metad

Reactotron is a desktop-based development environment designed for inspecting, monitoring, and manipulating mobile and web applications in real time. It functions as a centralized hub that connects to a running application via a persistent WebSocket connection, allowing developers to observe internal state, network traffic, and console output without manual instrumentation. The tool distinguishes itself through a modular plugin architecture that enables custom debugging commands and specialized extensions. It provides advanced diagnostic capabilities, including the ability to overlay design m

CppGuide is a curated collection of educational resources and practical guides focused on C++ server development, Linux kernel internals, concurrent programming, network protocols, and security exploitation. It provides structured learning paths for backend developers, covering everything from interview preparation to building high-performance network servers and understanding operating system fundamentals. The guide distinguishes itself by offering in-depth, hands-on tutorials that walk through real-world implementations, including building a Redis-like server from scratch, designing custom

Unpoller is a network controller metrics exporter and time-series data pipeline. It functions as a network event forwarder and monitoring dashboard, pulling device performance data and security anomalies from controller APIs to enable long-term storage and trend analysis. The system captures network hardware metrics and site performance data, shipping these measurements to external time-series databases. It also forwards alarms and network events to centralized log aggregation platforms and provides a visualization interface for rendering these metrics into custom analysis dashboards. The pr

Kubeshark is a network observability platform designed for Kubernetes environments, functioning as an eBPF-powered engine for cluster-wide traffic analysis. It captures, indexes, and visualizes network activity and API calls directly from the kernel, providing deep visibility into service-to-service communication without requiring sidecar proxies or manual code instrumentation. The platform distinguishes itself through its ability to perform protocol-aware traffic dissection and user-space cryptographic hooking, which allows for the inspection of encrypted traffic and the reconstruction of ap

Firefox is a cross-platform web browser engine designed to render web content, execute JavaScript, and manage secure browsing sessions. It utilizes a multi-process isolation architecture that distributes browser tasks across independent operating system processes to ensure stability and prevent site-specific failures from impacting the entire application. The engine incorporates a sandboxed execution environment to restrict web content and untrusted scripts to isolated memory compartments, enforcing security policies that prevent unauthorized access to system resources. The project distinguis

Vector is a high-performance observability data pipeline designed to collect, transform, and route logs, metrics, and traces across distributed infrastructure. It functions as a modular engine that decouples data ingestion from processing and transmission, utilizing a component-based architecture to connect diverse sources to multiple destinations. The project distinguishes itself through a focus on reliability and flow control. It implements backpressure-aware data movement to prevent data loss during traffic spikes and utilizes disk-backed event buffering to ensure durability during network

This project is a comprehensive sample library and implementation guide for ASP.NET Core. It provides a collection of practical examples and projects that demonstrate how to build web applications, RESTful APIs, and high-performance services. The repository focuses on a variety of architectural patterns, including the development of Minimal APIs, contract-first gRPC services, and real-time communication using WebSockets and Server-Sent Events. It includes detailed implementations for user identity and security, such as token-based authentication and CSRF protection. The codebase covers a bro

This application is a desktop network traffic analyzer that provides real-time monitoring and forensic inspection of data packets. By interfacing directly with low-level system drivers, it captures raw network traffic from physical or virtual adapters to identify communication patterns, track bandwidth usage, and diagnose connectivity issues. The system distinguishes itself through an immediate-mode graphical interface that rebuilds the display state every frame, ensuring high responsiveness during live data updates. It maintains performance by using asynchronous message passing to decouple t

This project is an agentic framework designed to enable autonomous web navigation and browser automation. It functions as a controller that translates natural language instructions into deterministic browser actions, allowing agents to interact with websites, perform data extraction, and manage complex authentication flows. By leveraging accessibility trees and semantic element resolution, the framework mimics human-like navigation, moving beyond brittle DOM selectors to interact reliably with modern web interfaces. The framework distinguishes itself through its focus on secure, scalable exec

AndroidHttpCapture is a mobile application for intercepting and analyzing HTTP and HTTPS network traffic directly on an Android device. It functions as a local proxy server and traffic interceptor to capture and monitor requests and responses from other installed mobile applications. The tool provides capabilities for MITM HTTPS decryption through root certificate installation and supports exporting captured network sessions as HAR files for external analysis. It allows for real-time response body injection and the modification of request headers via user agent spoofing. The project includes

Pcap-Analyzer is a desktop utility designed for the forensic analysis of offline packet capture files. It functions by decoding binary network protocols into structured metadata, allowing users to examine network activity without requiring a live connection. The tool provides comprehensive capabilities for reconstructing communication sessions and extracting application-layer artifacts, such as transmitted files and credentials. It distinguishes itself through integrated geospatial mapping, which correlates source and destination network addresses with physical location databases to visualize

spdlog is a high-performance C++ logging library designed to record diagnostic messages and application events. It serves as an asynchronous logging framework and thread-safe library that coordinates access across concurrent threads to maintain message integrity. The project functions as a multi-target log router, distributing single events to multiple destinations such as consoles, files, and system daemons. It includes a log rotation manager that handles file lifecycles through basic, rotating, or daily rollover strategies to prevent disk exhaustion. The library covers a broad range of cap

Wireshark is a network protocol analyzer and traffic inspector used for capturing and inspecting network traffic. It functions as a packet capture tool that intercepts live data from network interfaces and a TCP/IP dissector that decodes network protocol layers to translate raw binary packets into human-readable fields. The system provides capabilities for protocol stream reconstruction, grouping related packets into cohesive conversations between endpoints. It also operates as a packet file converter, allowing for the reading, modification, and conversion of network capture files across vari

Loguru is a Python logging library and thread-safe framework designed for recording system events and diagnostic messages. It functions as a structured logging tool that can serialize messages into JSON strings with metadata for automated parsing and analysis. The library includes a specialized exception tracker that captures unhandled crashes across main and background threads, rendering detailed stack traces that include local variable values. It further distinguishes itself through a unified routing pipeline that can intercept messages from the standard library logging module and dispatch

EasyLogger is a lightweight C/C++ logging library and asynchronous framework designed for embedded systems, IoT devices, and wearables. It functions as a resource-efficient logger and flash memory manager, providing tools for low-level debugging and system event recording with minimal ROM and RAM requirements. The project distinguishes itself through an asynchronous logging model that buffers messages to a separate thread, preventing logging operations from blocking real-time application execution. It includes a specialized flash memory manager that utilizes circular buffering to persist logs

BCC is an eBPF development toolkit and tracing framework used for monitoring and analyzing the Linux kernel. It functions as a performance analysis tool and debugging utility to capture system events, measure kernel latency, and provide network observability. The project distinguishes itself by providing a build system that integrates with LLVM to compile C-like code into BPF bytecode at runtime. It utilizes BPF Type Format data for relocations to maintain cross-kernel compatibility and extracts kernel headers to ensure the generated programs match the specific kernel version. The toolkit co

PCredz is a network credential extraction tool and traffic analyzer designed to intercept passwords, hashes, and tokens from IPv4 and IPv6 traffic. It functions as both a real-time monitor for live network interfaces and a parser for saved packet capture files. The tool identifies sensitive information, including credit card numbers and authentication tokens, using protocol-aware parsing. It further acts as a password hash recovery utility by normalizing captured authentication hashes into specific syntaxes compatible with external recovery software. Capabilities include real-time traffic in

GoReplay is a network traffic recording and replay tool used to capture live HTTP and binary protocol requests. It functions as a traffic shadowing proxy that duplicates incoming network requests to test environments and a utility for recording traffic to local or cloud storage for later analysis and playback. The system is capable of processing non-textual data formats, such as Thrift and Protocol Buffers, allowing for the capture and replay of specialized application-to-application communication. The tool supports live traffic capture and asynchronous duplication to validate infrastructure

Stetho is a debug bridge that connects Android applications to Chrome Developer Tools. It allows for the real-time inspection of network traffic, internal application state, and the user interface layout directly within a desktop browser. The project provides specialized inspectors for analyzing Android-specific components. This includes a network inspector for capturing HTTP requests and responses, an SQLite database browser for querying local storage, and a view hierarchy inspector for mapping UI elements and styles. Additional capabilities cover runtime execution via an embedded JavaScrip

mcp-use is a development framework designed for building, deploying, and managing servers, clients, and autonomous agents using the Model Context Protocol. It provides a comprehensive toolkit for creating servers that expose custom tools, data resources, and prompts to compatible AI agents. The project distinguishes itself by offering a complete lifecycle for protocol-based applications, including a dedicated hosting platform for production servers and a compliance validator to ensure servers meet marketplace publishing requirements. It also features an observability suite for tracing protoco

mitmproxy2swagger is a tool that transforms captured mitmproxy network traffic into structured OpenAPI schemas for reverse-engineering REST APIs. It functions as an OpenAPI schema converter and network traffic documentation utility, extracting API endpoints and data structures from captured network packets to create formal technical references. The tool enables the reconstruction of undocumented APIs by converting intercepted HTTP request and response patterns into specifications. It supports merging multiple traffic capture files into a single schema to incrementally expand an API map and ut

This project is a collection of Python implementations for web scraping, network traffic interception, data analysis, and sentiment analysis. It provides methods for extracting structured data from websites and mobile application interfaces. The collection includes tools for capturing and analyzing network packets from mobile applications to identify hidden internal API endpoints. It also features scripts for evaluating the emotional tone and public perception of text data. The project covers data manipulation and transformation of large datasets, as well as the generation of charts and grap

CocoaDebug is a debugging framework for iOS that provides a toolkit for inspecting application logs, network traffic, and sandbox files directly on a device. It functions as a suite of specialized tools for auditing device hardware, monitoring performance, and inspecting network activity. The framework includes an on-device network inspector for capturing and filtering HTTP requests and payloads, as well as a sandbox file manager to list and modify files and folders within the application container. It further provides a device auditor to display system build versions and hardware details for

Boto3 is the AWS SDK for Python, providing a programmatic interface for managing and automating AWS cloud infrastructure and services. It serves as a cloud management API client and resource manager for provisioning, configuring, and scaling virtual servers, databases, and storage. The library enables the implementation of infrastructure-as-code through declarative templates and scripts, allowing for the deployment of identical resource stacks across multiple accounts and geographic regions. It also provides a framework for coordinating distributed workflows, serverless functions, and contain