Open-source alternatives to Cache

在线云盘、网盘、OneDrive、云存储、私有云、对象存储、h5ai、上传、下载

Store.js is a client-side state persistence library and web storage abstraction layer. It provides a consistent browser key-value storage wrapper that manages the persistence of application state across sessions using the most capable available local storage mechanism. The engine is extensible, allowing for the integration of custom storage backends and plugins to modify how data is read and written. It functions as a reactive web storage manager, monitoring specific keys to trigger notifications when stored values are updated. The library handles automatic data serialization for complex typ

PicList is a cloud image upload manager and storage file browser designed to facilitate image hosting for Markdown documents. It serves as a bridge between document editors and cloud providers, providing a local server that accepts image uploads and returns formatted Markdown or HTML links. The tool features an image preprocessing pipeline that applies watermarks, compression, and custom renaming patterns before files are uploaded. It supports synchronization of application settings, image albums, and plugins across multiple devices using WebDAV and Git. The system manages files across vario

localForage is a browser storage wrapper and key-value store that provides a unified JavaScript API for persisting data. It acts as an abstraction layer over IndexedDB, WebSQL, and localStorage, allowing web applications to save data offline. The library features a priority-based driver fallback system that automatically detects and selects the most capable storage engine available in the browser. It simplifies data management by providing an asynchronous interface for storing complex JavaScript objects and binary buffers without requiring manual serialization. The project covers broad capab

TiddlyWiki5 is a modular wiki engine and non-linear knowledge base that organizes information into small, linked chunks. It can function as a single-file personal wiki where all content and application logic are stored within one HTML file for local-first use, or as a self-hosted wiki server that serves content over HTTP. The project is distinguished by a data-driven architecture where plugins and extensions are treated as stored data entries. It features a filter-based query engine for manipulating structured data and a transclusion system that allows the live content of one entry to be embe

This project is a PHP interface library that provides a component interoperability layer. It consists of a set of framework-agnostic contracts and standardized definitions that enable different libraries to work together via a consistent contract. The library focuses on providing minimal shared interfaces and API definitions, allowing software components to be used across different PHP projects regardless of the underlying framework. This approach decouples application logic from concrete framework implementations. The project specifically covers service container abstraction and dependency

elFinder is a JavaScript-based web file manager that provides a browser interface for organizing and manipulating files and folders on remote servers. It functions as a backend-agnostic storage interface, utilizing a common API and a JSON-based protocol to translate browser requests into various server-side language commands. The system decouples the front end from physical storage through a multi-backend interface and volume-driver abstraction. This allows the file explorer to connect to different server-side languages and storage volume drivers to manage data across diverse environments. T

SFTPGo is a multi-protocol file server and secure file transfer gateway that enables the exchange and storage of files via SFTP, FTP, HTTP, and WebDAV. It provides a unified management interface and a web-based file manager for configuring server settings, user permissions, and collaborating on documents. The project functions as a cloud storage gateway, bridging legacy file transfer protocols to modern backends such as S3, Google Cloud Storage, and Azure Blob. It features an automated data workflow engine that uses dynamic logic and virtual folders to route files and manage data lifecycles a

redux-persist is a state persistence library for Redux that saves and restores store state to a storage engine to maintain data across sessions. It functions as a state rehydration tool and serialization middleware, loading previously saved application state back into the Redux store during the initialization process. The library includes a schema migration utility to transform persisted state data from older versions to newer schemas, ensuring compatibility after application updates. It also provides state serialization transformations to modify state objects before they are written to or re

Filegator is a web-based file manager and self-hosted file sharing portal. It functions as a cloud storage gateway that allows users to organize, upload, and download files across local disks and various cloud storage providers through a single unified interface. The system features a multi-backend authentication provider capable of verifying identities via JSON files, databases, or external directory services. It includes a role-based access control system that manages user permissions, assigns home folders, and restricts access to specific files and system routes. The platform provides cap

This project is a pure Go implementation of the Git version control system, providing a library for integrating versioning and history analysis into applications. It functions as a complete repository manager and object store that does not require external binary dependencies. The implementation utilizes interface-based storage, allowing repositories to be managed on disk or entirely in memory. It supports a transactional storage model to ensure atomic operations and implements a content-addressable storage system using delta-compression packfiles. The library covers a broad range of version

EmDash is an open-source content management system built on Astro that combines a visual admin panel with a plugin-driven architecture and server-side rendering. It provides a complete content management system with structured content modeling, a rich text editor using Portable Text format, and a TypeScript API for type-safe content queries. The system supports authentication through passkeys, OAuth 2.1, and external providers, with role-based access control and fine-grained permission scopes. What distinguishes EmDash is its plugin development framework, which supports both native plugins ru

OpenTSDB is a distributed time series database and metrics engine designed for storing and managing massive volumes of high-cardinality system metrics. It functions as a data store and analytics platform that enables large-scale metric ingestion and infrastructure performance monitoring across a distributed cluster. The system distinguishes itself through a distributed storage abstraction that supports multiple backends such as HBase, Cassandra, and Google Bigtable. It utilizes a hierarchical metric tree to organize time series and employs numeric identifier indexing to reduce storage footpri

Papra is a self-hosted document management system designed for digital archiving, organization, and retrieval. It serves as a centralized platform for storing files with a focus on security, providing an encrypted file archive using AES-256-GCM and a programmatic interface for managing documents and metadata via a REST API, SDK, and command line tools. The system distinguishes itself through an automated document ingestion engine that imports files via email forwarding, monitored folders, and webhook listeners. It further enhances discoverability by acting as an OCR document indexer, extracti

This project is a boilerplate and template for Go applications implementing Clean Architecture. It provides a standardized project structure designed to organize code into decoupled layers, ensuring that core business logic remains independent of databases, frameworks, and user interfaces. The implementation focuses on a domain-driven design that utilizes dependency injection and the repository pattern to abstract data storage. It enforces architectural boundaries through internal package encapsulation and layer-based dependency inversion. The project includes a development toolchain that au

CodeIgniter is a PHP web framework built on the Model-View-Controller pattern, designed for building full-stack web applications. It provides a lightweight toolkit with minimal configuration, organizing application logic into controllers, models, and views for clean separation of concerns. The framework includes a fluent query builder for constructing SQL statements programmatically, PSR-4 autoloading with namespace mapping, and a service-based dependency injection container for managing shared class instances. The framework distinguishes itself through its comprehensive set of built-in tools

Alist is a unified cloud storage gateway that aggregates disparate remote storage providers into a single, navigable virtual file system. By acting as a remote file system proxy, it decouples file operations from specific provider implementations, allowing users to browse, download, and manage files across heterogeneous backends through a standardized interface. The platform utilizes a driver-based storage abstraction that translates generic file system operations into provider-specific API calls. This architecture supports a wide range of cloud storage services, S3-compatible object storage,

This project provides a self-hosted remote cache server designed to store and share build artifacts across distributed development teams and continuous integration pipelines. By acting as a centralized proxy for build outputs, it enables teams to synchronize task results, effectively minimizing redundant execution and accelerating build times for monorepo projects. The system distinguishes itself through a modular architecture that supports diverse storage backends, allowing artifacts to be persisted on local disks or integrated with various cloud-based object storage providers. It incorporat

PouchDB is a JavaScript NoSQL document store designed to persist JSON data within web browsers or Node.js environments. It functions as an offline-first data store that caches information on a local device and synchronizes with a remote server when connectivity is available. The database implements the CouchDB API to ensure compatibility for bidirectional data replication. This allows for the synchronization of documents between a local client and remote CouchDB servers to maintain consistency across multiple devices. The project provides capabilities for local browser data storage and remot

SkyWalking is an application performance monitoring system and observability platform designed to collect and analyze metrics, traces, and logs from distributed microservices. It functions as a distributed tracing platform and a telemetry data pipeline that ingests and aggregates observability data from various language agents. The project features an AI-powered anomaly detector that uses machine learning to calculate metric baselines and identify irregular URI patterns. It includes an eBPF performance profiler for diagnosing CPU and network bottlenecks at the kernel level and generates inter

SpiceDB is a distributed permission store and relationship-based access control system. It provides a scalable database for storing and querying fine-grained authorization relationships, implementing a consistency model inspired by Google Zanzibar to manage access rights across large-scale applications. The system uses a dedicated schema language to define the rules and logic governing how relationships translate into permissions independently of application code. It functions as a pluggable authorization engine that persists relationship tuples in external relational databases such as Postgr

APScheduler is a Python task scheduler designed to execute functions at specific times or recurring intervals. It functions as an asynchronous background scheduler and distributed job dispatcher, allowing tasks to run concurrently with application lifecycles and web server request handling. The system distinguishes itself through a persistent job store that saves schedules and task states in external databases, ensuring continuity across process restarts. It separates task scheduling from execution by dispatching jobs to distributed workers in separate processes to prevent execution bottlenec

This project is a reference implementation and boilerplate for building RESTful services using the Gin web framework in Go. It provides a structured backend architecture featuring modular routing and middleware to serve as a template for Go web applications. The project distinguishes itself through a comprehensive set of integrated systems, including a security layer for user authentication and private endpoint protection using JSON Web Tokens. It also implements a high-speed memory storage layer via Redis to cache frequent database queries and a containerized runtime environment for consiste

ToyDB is a distributed SQL database that provides a system for storing and querying data across multiple nodes. It focuses on maintaining strong consistency and fault tolerance through the implementation of a distributed consensus algorithm. The project distinguishes itself by supporting historical data versioning, enabling time-travel queries to retrieve the state of the database from a specific point in the past. It utilizes multi-version concurrency control to manage ACID transactions and ensure data integrity during concurrent operations. The system covers relational data modeling with t

nano-graphrag is a retrieval system that uses knowledge graphs to provide structured context for large language model responses. It functions as a knowledge graph indexer that transforms unstructured text into a network of entities and relationships, as well as a hybrid graph retrieval system. The project differentiates itself by combining local neighborhood searches with global community summaries to answer complex natural language questions. It includes a knowledge graph visualizer that generates HTML representations of entities and their relationships to map indexed knowledge. The framewo

This project is a Spring Boot administrative framework and enterprise backend boilerplate designed for building management systems. It provides a foundation for enterprise-level applications using a reactive programming model and non-blocking data access patterns. The framework includes a reactive CRUD system for database operations and a role-based access control system to manage user accounts and administrative permissions. It further distinguishes itself with a centralized data dictionary for maintaining standardized labels and values across application modules. The system's broader capab