Open-source alternatives to Computer Science Flash Cards

Anki-Android is an open-source education application designed for long-term memory retention through the use of spaced repetition. The platform enables users to create, manage, and study multimedia flashcards that support text, images, audio, and mathematical notation. It provides a structured environment for learning by scheduling review intervals based on an optimized algorithm that prioritizes content according to individual performance. The application distinguishes itself through its cross-platform synchronization capabilities, allowing users to maintain consistent study collections and

Anki is a cross-platform study application and spaced repetition flashcard software designed for memorizing information. It functions as a memory tool that implements spaced repetition systems to optimize long-term learning and recall. The software facilitates flashcard-based studying and personal knowledge management by organizing facts and concepts into scheduled reviews. It uses a timed review system to ensure information is retained in long-term memory through active recall. The application includes capabilities for managing digital decks of questions and answers, utilizing a mathematica

This project is an interactive programming curriculum and educational system designed to teach computer science and software engineering. It provides a structured set of courses and professional roadmaps focused on backend engineering, DevOps, and systems fundamentals. The platform is distinguished by an AI-powered coding tutor that provides Socratic guidance and contextual hints to help students find solutions independently. It features a browser-based code sandbox using WebAssembly to eliminate local environment setup, alongside automated test-based grading and spaced-repetition logic to re

Walle-web is a continuous delivery platform and DevOps release manager designed to automate the deployment, rollback, and release of code across multiple server environments. It functions as a container deployment orchestrator and multi-environment server manager, providing a centralized web interface for coordinating application delivery. The system distinguishes itself through a combination of canary release management and containerized application delivery. It utilizes a RESTful deployment API to integrate external tools into the delivery pipeline and employs hook-based workflow orchestrat

Kubero is a self-hosted Platform as a Service (PaaS) that simplifies the deployment, scaling, and management of containerized applications on Kubernetes. It functions as an application manager, CI/CD orchestrator, and multi-tenant manager, allowing users to run workloads without writing manual configuration files. The platform distinguishes itself through automated image synthesis, transforming source code from Git repositories into deployable containers via buildpacks, Dockerfiles, or nixpacks. It implements a GitOps delivery model with automated pipelines that trigger builds on push events

TypeWords is a language learning typing tool and vocabulary trainer designed to build spelling accuracy and muscle memory. It functions as a practice environment where users master complex texts and vocabulary through audio-based dictation and text input. The system utilizes a spaced repetition vocabulary trainer that employs a scientific algorithm to calculate review intervals for long-term memory retention. It includes a customizable wordlist manager for importing academic vocabularies or creating personal dictionaries with associated local audio and phonetic data. The platform covers a br

eShopOnContainers is a .NET microservices reference application designed to demonstrate cloud-native architecture patterns. It serves as a sample distributed system that implements domain-driven design and utilizes containerized services. The project is developed as a cross-platform sample compatible with Windows, Linux, and macOS. It utilizes Docker for containerized application deployment and supports orchestration via Azure Kubernetes Service to manage the scaling and availability of its services. The system covers microservices architecture design, asynchronous service communication, and

Financial Freedom is an open-source, self-hosted personal finance platform designed for tracking budgets, managing transactions, and monitoring wealth. It provides a private alternative to commercial financial tools by allowing users to run the application on their own infrastructure, ensuring complete control over sensitive financial information. The platform distinguishes itself through automated bank data synchronization, which connects to financial institutions to fetch account balances and transaction history. It also supports financial data import, enabling users to consolidate transact

AdventureLog is a self-hosted travel organizer and planner designed to document visited locations, organize future trip itineraries, and visualize travel history on a world map. It functions as a personal travel journal for recording activities and maintaining a visual history of explorations. The application is built for deployment on home servers as a dockerized web application, utilizing reverse proxies and custom domain mapping to provide a private instance for managing travel data without relying on third-party cloud services. The software covers travel tracking through location logging

This project is a collection of Linux server automation scripts designed to automate the installation and configuration of core server software. It provides specialized tools for deploying proxy servers, configuring DNS servers, managing container infrastructure, and optimizing the Linux kernel. The automation suite distinguishes itself by integrating geo-restriction bypass capabilities via proxy protocols and implementing advanced network tuning, such as enabling BBR congestion control to improve throughput and latency. It also features distribution-aware automation that detects CPU architec

This project is a comprehensive curriculum for mastering computer science fundamentals and preparing for technical interviews. It provides over 120 interactive Python coding challenges that focus on algorithmic skill development, data structure implementation, and logical problem solving. The learning experience is delivered through a series of executable notebooks that combine instructional content with hands-on coding exercises. Each challenge is self-contained and relies on automated unit tests to verify the correctness of user-implemented solutions against predefined constraints and edge

This project is a self-hosted, web-based interface designed for interacting with large language models. It provides a centralized dashboard that enables users to manage model communications, maintain persistent conversation histories, and organize prompt libraries within a private, containerized environment. The platform distinguishes itself through robust administrative and security controls, including support for enterprise identity providers, password-based access, and request rate limiting. It facilitates flexible connectivity by allowing users to configure custom network proxies, manage

Peppermint is a self-hosted suite of business tools comprising a customer support ticketing system, a client relationship management system, and a markdown-based project notebook. It provides a centralized workflow for resolving technical requests and tracking chronological interaction logs to maintain context within professional relationships. The application is delivered as a containerized business tool, utilizing Docker to ensure consistent deployment and availability across different hosting platforms. It employs a process manager to monitor the application runtime and trigger automatic r

TakeNote is a containerized web application designed as a markdown notes manager for developers. It provides a structured environment for storing technical documentation and plain text snippets using categories and favorites. The application functions as a specialized markdown text editor featuring multi-cursor support and keyboard shortcuts for high-efficiency text manipulation. It includes a live preview mode that renders markdown with syntax highlighting for code blocks. The system covers note organization and management through category-based filtering, bulk collection actions, and a dra

Lobe Chat is a self-hosted AI platform that provides a web-based interface for interacting with multiple large language models. It functions as an AI agent orchestrator, allowing for the design, scheduling, and management of autonomous agent teams to perform operational tasks. The platform features an extensible plugin framework and SDK to integrate external tools and custom function calls into workflows. It utilizes a provider-agnostic model layer to unify various AI APIs and includes a context-aware memory system to store structured user information for personalized interactions. The syste

Swagger Editor is a web-based authoring tool and development environment used to design, document, and validate API specifications. It specifically supports the OpenAPI Specification, providing a browser interface for writing API schemas and verifying their structure. The tool features real-time rendering that produces a visual preview of the API documentation as the specification is edited. It includes syntax highlighting based on standardized schemas to improve the readability of the API definitions. The editor supports importing specifications from files, external URLs, or example fixture

FiftyOne is a visual tool for curating, analyzing, and managing image and video datasets for machine learning model training. It serves as a platform for identifying annotation errors, refining ground truth labels, and evaluating vision model performance by comparing predictions against ground truth to identify failure modes. The system functions as a containerized data platform that supports team collaboration on large-scale visual datasets in a cloud environment. It includes specialized capabilities for exploring high-dimensional embeddings to discover data clusters and retrieve correspondi

Mediago is a multi-platform video downloader and extraction utility that supports content retrieval from over a thousand different social and video sharing platforms. It functions as an AI-powered download automator that uses natural language commands to trigger and manage video download workflows. The project provides specialized capabilities for sniffing and capturing m3u8 and HLS video streams via a browser extension that detects resources on active web pages. It can be deployed as a containerized headless server, allowing users to manage remote download tasks across a network through a we

Mage AI is a Python-based data pipeline orchestrator and self-hosted data integrated development environment. It is designed for building, scheduling, and monitoring data workflows using a block-based pipeline design and interactive notebook interface. The platform distinguishes itself by integrating generative AI capabilities, allowing users to connect large language model providers via API to incorporate artificial intelligence into automated data streams. It also functions as an Apache Spark data processor, managing the kernels and infrastructure required for high-volume analytics and larg

Nexterm is a centralized management platform for remote server administration, providing a web-based gateway for SSH, VNC, and RDP connections. It serves as a unified interface for managing remote server connectivity, secure access control, and server resource monitoring. The platform integrates a Docker container orchestrator and a virtualization management console to control LXC and QEMU containers. It features an identity gateway that supports OpenID Connect single sign-on and two-factor authentication, alongside an SFTP file manager for remote file transfer and organization. The system i

Cabot is a self-hosted incident management platform and monitoring alert manager. It serves as a centralized system for receiving external monitoring data, managing on-call responder rotations, and dispatching incident notifications to administrators to ensure prompt resolution of system failures. The platform provides a containerized monitoring interface and a REST API for programmatically creating and modifying monitoring data and incident reports. It coordinates the routing of critical system alerts and manages the scheduling of personnel for on-call rotations. The system includes capabil

Tasks.md is a self-hosted, file-based productivity tool that provides a visual interface for managing workflows. It functions as a Kanban board by mapping local filesystem directories and plain text files directly to project boards, lanes, and task cards. The application distinguishes itself by using the local filesystem as its primary database, ensuring that all task data remains portable and compatible with version control systems. It treats sub-directories as independent project workspaces, allowing users to organize their work by manipulating the file structure. The system performs server

CookLikeHOC is a dockerized web application that serves as a culinary recipe database and digital cookbook. It provides a structured collection of ingredient lists and cooking instructions derived from restaurant provenance reports to enable the reproduction of authentic meals. The project focuses on traditional Chinese cooking and restaurant recipe replication, specifically tracking culinary provenance to ensure consistent flavor profiles. It includes curated data for regional dishes, braised meats, vegetables, and beverage recipes. The application is designed for containerized deployment t

Xboard is a containerized service orchestrator and management platform. It provides a Docker-based administrative dashboard for monitoring and controlling backend system services and configurations through a unified interface for operators and users. The platform utilizes a modular architecture and a dedicated plugin system, allowing for the registration of custom logic and the extension of core administrative functionality. It includes utilities for legacy data migration to transfer records and configurations from previous versions or alternative implementations into the current system sche

Relax is a headless content management system and visual website builder. It allows for the creation and organization of digital content delivered via a GraphQL API to a React frontend, utilizing a component-based visual editor to construct web pages and layouts without writing manual code. The platform integrates a dockerized content manager for simplified deployment and uses a schema-driven approach to structure data architecture and entry types. It features a dynamic administrative experience built with React and Redux to manage site states and user interfaces. The system provides broad c

Lets-chat is a self-hosted team communication platform and XMPP chat server designed for private messaging. It provides a containerized communication environment for small teams to exchange messages and files, featuring a programmable REST API for automating conversations and managing messages from external tools. The platform functions as an XMPP gateway and server, ensuring interoperability with other compliant messaging clients. It distinguishes itself by supporting enterprise identity management, allowing administrators to verify user identities through local accounts or external director

Seedbox-lite is a self-hosted media center and torrent streaming gateway. It functions as a containerized application that orchestrates a torrent engine and a responsive web interface to manage downloads and stream video content. The system separates the torrent backend from the frontend via a REST API. It enables real-time playback of video files from torrents, allowing viewing to begin before the full transfer completes. The platform covers torrent download management using magnet links, media playback with subtitle integration, and disk cache management. Access is secured through password