Open-source alternatives to Oshi

cAdvisor is a container resource monitoring agent and performance analyzer that collects and exports CPU, memory, network, and disk usage statistics from running containers. It functions as a telemetry tool for discovering containers across various runtimes and serves as a Prometheus-compatible metrics exporter. The agent distinguishes itself by analyzing Linux control groups to provide visibility into resource consumption and limits. It utilizes kernel perf events and NUMA statistics for low-level hardware performance tracking and diagnostics, and it can identify out-of-memory kill events th

TinyGo is a specialized compiler and development toolkit designed to bring the Go programming language to resource-constrained microcontrollers and WebAssembly environments. It provides a bare-metal runtime environment that enables high-level code execution without the need for a traditional operating system, utilizing an LLVM-based backend to generate efficient machine instructions. The project distinguishes itself through aggressive optimization techniques tailored for small hardware, including a static memory allocation strategy and whole-program dead code elimination that significantly re

The Accidental CTO is a comprehensive collection of guides and frameworks focused on distributed systems architecture, resilience engineering, and system observability. It provides strategies for scaling applications from thousands to millions of users while maintaining high availability. The project offers specific methodologies for managing data volume through replication, sharding, and caching. It includes a framework for analyzing cloud infrastructure spending and evaluating transitions to self-hosted environments to reduce operational expenses. The resource covers the implementation of

Gotop is a terminal system monitor that provides a real-time hardware activity and system performance dashboard. It functions as a customizable resource dashboard and an extensible metrics collector, rendering system data through a graphical terminal interface. The project distinguishes itself as a remote system monitor capable of exporting local sensor data via a read-only port and polling performance metrics from remote servers. It supports extensibility through a plugin system that uses shared object files to integrate custom hardware performance tracking. The tool covers various observab

Inspektor Gadget is an eBPF observability toolset and program framework designed for tracing Linux systems and debugging Kubernetes nodes. It provides a suite of tools to collect kernel-level telemetry and export system metrics via the OpenTelemetry standard. The project distinguishes itself by packaging inspection tools as OCI-compliant container images, allowing for standardized distribution and deployment across clusters and hosts. It employs a modular data processing pipeline that utilizes WebAssembly modules to transform and filter telemetry, and leverages Compile Once Run Everywhere for

This project is a cross-platform mobile device information library designed to retrieve hardware, software, and network specifications from iOS and Android devices. It serves as a tool for accessing unique device identifiers, hardware models, and processor architectures to distinguish individual mobile devices. The library provides specialized capabilities for mobile hardware identification and operating system metadata retrieval, including build numbers and API levels. It also functions as a system state monitor for real-time tracking of battery levels, charging status, and network connectiv

This project is an application performance monitoring tool and JVM metrics library designed to measure workload behavior and export performance data to external monitoring databases. It serves as an instrumentation toolkit for tracking resource usage and internal runtime behavior within a Java execution environment. The system focuses on application performance measurement and JVM application monitoring, specifically tracking system health and runtime resource analysis to identify bottlenecks and stability issues. It provides a mechanism for external metrics export, sending captured data to t

Uptrace is an OpenTelemetry-based observability platform designed to collect, store, and analyze distributed traces, metrics, and logs. It functions as a centralized logging backend, a distributed tracing system, and a metrics engine to monitor application performance and system health. The platform is distinguished by AI-powered operational capabilities, allowing users to query telemetry data and manage monitoring dashboards using natural language. It specifically includes specialized monitoring for generative AI pipelines, tracking token usage and response quality for LLM interactions and r

brpc is a high-performance C++ RPC framework and network programming library designed for building distributed systems. It functions as a multi-protocol RPC server capable of hosting and detecting multiple communication protocols, including gRPC, Thrift, HTTP, Redis, and Memcached, on a single TCP port. The project distinguishes itself through high-throughput data transport and memory efficiency, utilizing RDMA-based transport to bypass the kernel TCP stack and zero-copy memory management to eliminate data duplication. It also implements the Raft algorithm for consensus-based state replicatio

jetson-inference is a set of libraries and tools for executing optimized deep learning models on embedded GPU hardware. Its primary purpose is to enable real-time computer vision and AI inference at the edge with low latency and high throughput. The project distinguishes itself through high-performance streaming analytics and the ability to execute concurrent AI pipelines on auto-grade silicon. It provides specialized support for multi-sensor stream processing, utilizing zero-copy data transport to load camera frames directly into GPU memory. The codebase covers a broad surface of capabiliti

Kata Containers is an OCI container runtime that launches containers inside lightweight virtual machines to combine hardware-level isolation with container operational speed. It functions as a hardware-isolated container engine and lightweight VM hypervisor, providing a virtual machine monitor interface that abstracts multiple hypervisors to optimize for performance or specific hardware emulation. The project distinguishes itself through a confidential computing runtime that leverages hardware-backed trusted execution environments, such as Intel TDX and AMD SEV-SNP, to protect data in use. It

Outline is a full-stack server-side web application designed as a centralized platform for collaborative knowledge management. It provides teams with the infrastructure to create, organize, and share structured documentation through real-time editing tools, while supporting high availability and horizontal scalability in production environments. The platform distinguishes itself through a comprehensive suite of operational and development tools. It includes a command-line interface for managing database schema versioning and structural consistency across deployments, alongside an integrated t

Node exporter is a system performance monitor that functions as a background service for Unix-like operating systems. It gathers real-time hardware and kernel telemetry, providing granular visibility into resource utilization such as CPU, memory, disk, and network interface statistics. The tool operates as a collector-based agent that retrieves data directly from kernel interfaces and the operating system filesystem. It exposes these metrics through a lightweight web server using a pull-based model, where external monitoring systems periodically poll the endpoint for current state snapshots.

TrafficMonitor is a system performance monitor that provides a floating desktop window and taskbar overlay to track real-time CPU, memory, and network speed metrics. It functions as a customizable system overlay and hardware resource tracker, displaying live statistics and user-defined data through transparent desktop widgets. The project uses a plugin-based system and dynamic-link libraries to extend data sources and add new hardware tracking capabilities. It includes a theme engine that reads external configuration files to apply custom skins, fonts, and background colors to the interface.

Highway is a portable C++ library and hardware abstraction layer designed for writing single instruction multiple data (SIMD) code. It provides a unified interface that maps data-parallel logic to various CPU instruction sets, enabling the development of high-performance software that runs across different processor architectures without requiring architecture-specific assembly. The project features a dynamic instruction dispatcher that selects the most efficient CPU instruction set at runtime based on detected hardware. It also supports static target specialization and extensible mechanisms

Opserver is a cross-platform monitoring server and infrastructure dashboard designed for tracking system health, performance metrics, and backend service availability. It functions as an external metric aggregator and enterprise health oversight tool, centralizing data from third-party monitoring sources into a single view. The system integrates with incident response services like PagerDuty to map user identities and manage notification workflows. It also connects with external directory and identity providers to handle user authentication and permission assignments. The platform covers sev

Hutool is a standard utility library for Java application development designed to simplify common programming tasks and reduce boilerplate code. It provides a comprehensive collection of reusable helper classes and static utilities to streamline development across the Java ecosystem. The project implements a wide array of specialized toolkits, including systems for cryptography and security, network communication via HTTP and JSON clients, and the processing of office documents and file system IO. It also features a concurrency and scheduling framework for managing asynchronous tasks and recu

HertzBeat is a real-time observability platform that provides agentless monitoring for servers, databases, and networks. It functions as an infrastructure alerting manager, an OpenTelemetry Protocol log aggregator, and a public status page generator. The platform integrates an analysis engine that uses large language models to process monitoring data and generate system insights. It utilizes a cloud-edge collaborative architecture and distributed collector clustering to scale data gathering across large-scale networks. The system covers a broad range of observability capabilities, including

gfx is a hardware-agnostic graphics API abstraction that translates a unified set of graphics and compute commands into native instructions for multiple GPU drivers. It provides a common interface for cross-platform rendering and general-purpose GPU compute programming. The project features an intermediate-representation shader translation system that converts source code and SPIR-V into target-specific languages. It employs a data-driven reference test framework to verify that graphics output remains consistent across different hardware platforms. Capabilities include parallel command buffe

Hutool is a comprehensive suite of Java extensions designed to serve as a standard library extension. Its primary purpose is to reduce development boilerplate for common programming tasks and data manipulation through a collection of utility classes. The project provides specialized toolkits for database management using active record patterns and connection pooling, as well as network communication via a simplified HTTP client and asynchronous socket management. It includes security and identity capabilities such as symmetric and asymmetric encryption, image captcha generation, and JWT token

This project is a cross-platform graphics and compute framework that provides a unified, hardware-agnostic abstraction layer for rendering and parallel processing. It enables developers to build high-performance applications that execute consistently across diverse operating systems and hardware backends, including Vulkan, Metal, and DirectX. By mapping high-level graphics commands to native APIs, it serves as a portable foundation for both real-time 3D rendering and general-purpose GPU computing. The framework distinguishes itself through a robust architecture that supports both native deskt

Netdata is a distributed observability platform designed for real-time infrastructure monitoring and performance tracking. It functions as a high-frequency agent that collects system, container, and application metrics with per-second precision, providing both local visualization and centralized aggregation across complex, multi-cloud environments. The platform distinguishes itself through edge-based intelligence, utilizing local machine learning models to automatically detect performance anomalies without requiring manual configuration or external query engines. Its architecture prioritizes

Dokploy is a self-hosted platform-as-a-service designed to simplify the deployment and management of containerized applications and databases. It provides a centralized control plane that decouples administrative management from application workloads, allowing users to oversee infrastructure across multiple server nodes through a unified web interface or a command-line tool. The platform distinguishes itself through an extensive library of pre-configured application templates, enabling the rapid deployment of databases, identity providers, and various productivity or development tools. It sup

G-helper is a system utility designed for the management and optimization of ASUS laptop hardware. It functions as a background service that interfaces directly with kernel-level drivers and ACPI tables to provide granular control over device performance, thermal profiles, and power states. The utility distinguishes itself by offering automated firmware orchestration, which handles the retrieval and verification of manufacturer-signed updates to maintain system stability. It also provides specialized hardware control, including the ability to toggle between integrated and dedicated graphics m

Mole is a terminal-based utility designed for comprehensive system maintenance, storage management, and real-time hardware monitoring. It provides a command-line interface for users to analyze disk usage, track system health metrics, and perform routine optimization tasks to maintain machine stability and performance. The project distinguishes itself through a declarative configuration model that uses structured data files to define custom cleanup logic, allowing for precise control over the removal of temporary files and project artifacts. It incorporates a safety-first execution layer that

The Datadog Agent is an infrastructure monitoring agent and host telemetry collector. It functions as a background process that gathers system metrics and application health data to send to a centralized monitoring platform. The project operates as a plugin-based metric collector, using a modular system of independent check scripts to gather data from various third-party services and applications. It serves as a remote telemetry transmitter, providing a pipeline to stream infrastructure and system information to a remote analysis and alerting backend. Its capabilities cover application perfo

The server acts as a centralized ingestion engine designed to collect, normalize, and index distributed telemetry data. It functions as a backend processor that receives performance metrics, traces, and error logs from application agents, transforming them into structured documents for storage and analysis within search and analytics platforms. The system distinguishes itself through a high-throughput ingestion pipeline that utilizes asynchronous event processing and backpressure-aware flow control to maintain stability during traffic spikes. It employs modular, plugin-based transformation st