Open-source alternatives to Opentrack

Dshell is a network forensic analysis framework and traffic processor designed for the deep packet inspection of IPv4 and IPv6 traffic. It functions as an extensible forensic plugin system that captures, inspects, and analyzes network data to identify security anomalies and reconstruct communication streams. The system utilizes a plugin-based processing engine that allows for custom plugin development and plugin chaining. This modular architecture enables the creation of specialized analysis pipelines where network data is passed through a sequence of processing units for multi-step analysis.

Nonebot2 is an asynchronous Python framework for building event-driven chatbots across multiple messaging platforms. It centers on a non-blocking event bus and a driver-based adapter system that unifies different messaging protocols into a single consistent interface. The framework utilizes a modular plugin architecture, allowing for the discovery and loading of third-party extensions to add new event handlers and system capabilities. It distinguishes itself with a type-annotation based dependency injection system that automatically resolves and provides required service objects to handlers a

AR.js is a JavaScript library for building augmented reality experiences that run directly in the web browser. It provides the core capability to render digital content overlaid on the real world using either the A-Frame HTML component system or the three.js JavaScript library, supporting both marker-based and location-based AR approaches. The library enables tracking of predefined 2D images, fiducial markers, and image targets through the device camera, allowing virtual objects such as 3D models, videos, or images to be positioned relative to recognized visual references. For location-based

Snapdom is a DOM capture engine that serializes live web page elements into images, videos, documents, and other formats. It converts any DOM subtree into PNG, JPG, WebP, SVG, PDF, or self-contained HTML, and can record animating elements as video files or animated GIFs using the browser's MediaRecorder API. The library distinguishes itself through a plugin-based architecture that allows custom output format handlers and pipeline hooks to extend the capture process without re-cloning the source element. It manages separate caches for images, styles, and fonts with preloading and clearing meth

Fluentd is a unified logging layer and distributed event router that collects, parses, and routes log data from diverse sources to various storage backends. It functions as a log forwarding agent and pipeline orchestrator, transforming raw unstructured log strings into formatted objects using structured log parsing. The project utilizes a plugin-based pipeline architecture to route data through independent input, filter, and output stages. It differentiates itself through tag-based event routing, which uses regular expression patterns to direct specific data streams to their intended destinat

Yoga is a GraphQL server framework and runtime-agnostic HTTP handler used to build and deploy GraphQL APIs. It functions as a toolkit for managing schemas and resolvers, providing a spec-compliant environment for hosting APIs across diverse JavaScript runtimes, including Node.js, Deno, Bun, and serverless cloud environments. The project distinguishes itself through its ability to act as an Apollo Federation gateway, composing multiple subgraphs into a single unified supergraph. It also serves as a dedicated subscription server, delivering real-time data streaming via both WebSockets and Serve

Mirai is a software development kit and framework designed for building automated bots that interface with the QQ mobile protocol. It functions as a mobile protocol bridge and social API wrapper, enabling the automation of account interactions and the programmatic management of social networks. The project provides specialized tools for QQ bot development, including frameworks for managing group memberships, permissions, and moderation settings. It also includes utilities for social relationship automation, such as processing friendship requests and maintaining organized contact lists. The s

Olive is an open-source non-linear video editor and multi-track compositor designed for digital video production. It provides a desktop application for arranging, cutting, and trimming video and audio clips on a timeline to create high-resolution cinematic content. The software employs a proxy-based editing workflow, substituting high-resolution assets with low-bitrate temporary files to maintain fluid playback and scrubbing performance. This is supported by a non-destructive timeline engine that maps media clips using metadata pointers rather than modifying original source files. The system

This is a command-line client for managing multiple Aliyun Drive accounts from a single interface. It authenticates each account via an OAuth browser-based login flow, stores tokens separately, and allows switching between active sessions. The tool unifies local and cloud file paths under a common tree structure, enabling consistent browsing, upload, download, and organization across all connected accounts. The client implements several techniques to accelerate and control file transfers. Downloads are split into chunks and transferred concurrently across multiple streams, with progress track

Wechaty is a cross-platform chatbot framework designed to build and manage automated messaging agents. It provides a unified programming interface that abstracts diverse instant messaging protocols, allowing developers to create bots that function consistently across multiple communication services. By utilizing a modular architecture, the framework enables the development of conversational agents capable of handling complex messaging workflows, contact management, and group room interactions. The framework distinguishes itself through a puppet-based protocol abstraction and a language-agnost

Meshroom is a node-based photogrammetry software designed to transform collections of two-dimensional images into three-dimensional models and scene geometry. It provides a visual interface for constructing and managing modular data pipelines, allowing users to automate complex computer vision tasks such as feature extraction, depth map estimation, and mesh generation. The software distinguishes itself through a distributed computational framework that dispatches resource-intensive tasks across local hardware or remote render farms. By utilizing a directed acyclic graph execution model, it en

STorM32 BGC

Schematics for a 3D printable housing and build instructions for a multispectral Raspberry pi camera. The camera relies on off the shelve components and provides a cost effective and easily maintained alternative to commercial cameras. The camera is built around a Raspberry pi type A or A+, a…

Gyroflow is a gyroscope video stabilization software and IMU telemetry processor designed to remove camera shake from video files. It functions as a hardware-accelerated video renderer and lens calibration tool, utilizing embedded or external gyroscope and accelerometer data to perform pixel-level stabilization. The system is distinguished by its ability to integrate with professional non-linear video editing software via plugins, allowing stabilization to be applied directly to timelines without transcoding original footage. It supports diverse telemetry ingestion from camera brands, flight

If you're an RC enthusiast with a FPV headset, at some point you might have thought wouldn't it be cool if you could turn your head and the camera would follow. That is the intention of this project.