Open-source alternatives to Angularfire2

Firepad is a Firebase collaborative text editor and rich text editor component. It functions as a real-time collaborative framework and operational transformation engine designed to synchronize document editing across multiple concurrent users. The project provides tools for shared document synchronization and collaborative presence tracking, allowing users to see live cursor positions and identifiers. It supports rich text authoring integration for both formatted content and code editing. The system manages document consistency through shared document synchronization and provides capabiliti

This is a backend-as-a-service SDK that connects web and mobile applications to a suite of cloud services. It provides a unified interface for managing user identity, executing serverless logic, and handling cloud object storage. The toolkit is characterized by its real-time data synchronization, which allows NoSQL document data to stay consistent across multiple clients with built-in offline persistence. It facilitates secure user access through a variety of identity providers and manages serverless function invocation to execute backend logic in response to HTTPS requests or database events

Wasp is a declarative full-stack web framework that enables developers to build and deploy applications by defining their architecture in a centralized configuration. By using a high-level specification, the framework automates the orchestration of frontend, backend, and database components, ensuring that infrastructure concerns like routing, authentication, and data modeling are handled consistently across the entire stack. The framework distinguishes itself through its compiler-driven approach, which translates declarative configurations into cohesive, production-ready codebases. It provide

This project provides reference implementations for integrating iOS applications with Firebase backend services. It covers the setup of user authentication, real-time data synchronization, and cloud storage for mobile clients. The repository demonstrates the use of a serverless mobile backend, including the execution of cloud functions and the management of remote application configurations. It also includes implementations for identity verification using Google accounts and the delivery of mobile push notifications. The codebase covers broader capability areas such as application stability

PydanticAI is a Python framework designed for building production-grade autonomous agents. It provides a unified interface for interacting with diverse language models, enabling developers to construct agents that perform complex tasks through structured data validation, tool execution, and multi-turn conversation management. The library centers on type-safe schema enforcement, ensuring that model inputs and outputs remain consistent and reliable throughout the agent's lifecycle. The framework distinguishes itself through a robust architecture that emphasizes modularity and testability. It ut

Builderbook is a MERN stack digital bookstore and documentation platform designed for selling and delivering digital books. It functions as a content delivery site that transforms markdown files hosted in Git repositories into structured online books. The platform distinguishes itself by synchronizing markdown content from remote repositories into a database to enable metadata-driven access control and content gating. It integrates payment processing to restrict full content access based on verified purchase history, while providing public previews. The system covers a broad range of capabil

billboard.js is a JavaScript charting library built on D3.js that renders interactive data visualizations from a single declarative configuration object. It supports a wide range of chart types including bar, line, pie, scatter, area, spline, step, candlestick, funnel, gauge, heatmap, radar, polar, treemap, bubble, donut, and sparkline charts, and can overlay multiple chart types within a single visualization. The library offers an opt-in Canvas rendering mode for improved performance with large datasets and high-density axis displays, alongside its standard SVG-based rendering. The library d

Mercure is an HTTP-based message broker and real-time pub/sub server that routes asynchronous data updates to authorized subscribers. It functions as a centralized hub that receives data via standard HTTP requests and broadcasts it to web clients using the Server-Sent Events protocol. The project distinguishes itself by replacing WebSockets with a unidirectional HTTP connection, leveraging HTTP/2 and HTTP/3 for multiplexed, low-latency delivery. It implements a secure access control layer using JSON Web Tokens and JSON Web Signatures to validate the identity of publishers and subscribers, and

tsparticles is a JavaScript particle animation library and configuration-driven visual effects engine used to create customizable effects, confetti, and interactive backgrounds using HTML5 Canvas. It functions as a plugin-based graphics engine and a web component animation engine, allowing for the generation of complex behaviors and themes through structured JSON configuration objects. The project provides a cross-framework animation wrapper with dedicated compatible components for integrating effects into React, Vue, Angular, and Svelte. Its modular architecture allows users to extend the en

FirebaseChat is a real-time chat application and serverless messaging client that synchronizes conversations and messages instantly across clients. It provides a user interface for a messaging system backed by a cloud-hosted NoSQL document store. The project implements a real-time chat system through the integration of a Firebase backend, allowing for instant messaging workflows and the synchronization of data across connected clients. The application manages data using schema-less NoSQL storage and document-based data modeling. It utilizes a persistent connection for database synchronizatio

Stencil is a compiler used for authoring web component libraries and developing framework-agnostic user interface elements. It transforms TypeScript and JSX source code into standard custom elements that operate natively in the browser. The project enables the implementation of design systems and enterprise component systems by sharing a single codebase across different JavaScript frameworks. It generates specific adapter layers that allow these custom elements to be used as native components in React, Angular, and Vue. The toolset incorporates ahead-of-time compilation to minimize bundle si

This project is a web component tooling system used to compile TypeScript and JSX into standard-compliant custom elements. It enables the development of framework-agnostic components that function across different browsers and frontend environments. The toolset focuses on cross-framework UI distribution, allowing a single library of components to be used in React, Angular, Vue, or plain HTML. It includes capabilities for enterprise design system engineering and generates specific wrapper code to ensure components behave as native elements within various frameworks. The system covers server-s

Vapor is a comprehensive server-side web framework designed for building scalable, high-performance applications and APIs in Swift. It provides a non-blocking, event-loop-based runtime that manages concurrent task processing, background job queues, and asynchronous request handling. The framework is built around a dependency injection container that manages the lifecycle and resolution of services, configurations, and database connections throughout the request pipeline. The framework distinguishes itself through a protocol-oriented design that emphasizes type safety across all layers of the

Electric is a Postgres data synchronization engine and replication proxy designed to enable local-first software. It replicates data from Postgres databases to client-side stores in real time using logical replication, allowing applications to maintain a local embedded database for offline access and low-latency updates. The system distinguishes itself by using shapes to filter and authorize specific subsets of database rows and columns before streaming them to clients or edge workers. It further supports multi-user collaboration by integrating a conflict-free replicated data type framework t

FlutterFire is a set of plugins and libraries that provide a Firebase SDK for applications built with the Flutter framework. It functions as a cloud services wrapper that maps Firebase cloud APIs to the Dart programming language, enabling backend integration for cloud data storage, user authentication, and serverless function execution. The project uses a plugin-based modular architecture to separate different cloud services into independent packages. It employs platform-interface abstractions and method-channel-based native interoperability to communicate with native Android and iOS SDKs thr

Kemal is a high-performance web framework for the Crystal language, designed for building scalable APIs and web applications. It provides a natively compiled web server environment that leverages ahead-of-time compilation to maximize request speed and minimize memory overhead. The framework is distinguished by a middleware-based routing engine that uses pattern-matching and a chainable pipeline for flexible request filtering. It includes a dedicated server-side template engine for generating dynamic HTML and a WebSocket communication server for bidirectional real-time messaging and state broa

CoreStore is a type-safe Swift interface and persistence wrapper for managing local data storage and object graphs using the Core Data framework. It functions as an atomic persistence manager that executes data updates within transactional blocks to ensure changes are either fully saved or rolled back to prevent state corruption. The project provides a dedicated framework for performing sequential schema migrations through defined version chains and a type-safe object mapping system for importing external JSON data into persistent entities using Swift protocols. It includes a data binding la

go-socket.io is a Go implementation of the Socket.IO protocol used to build real-time, bidirectional, and event-driven communication between servers and clients. It functions as a communication framework that manages persistent connections and maps incoming network packets to specific handler functions to execute application logic. The library enables horizontal scaling of real-time connections through a distributed pub/sub adapter, which synchronizes events across multiple server instances using an external data store. It ensures reliability across different network environments by automatic

This repository is a collection of reference implementations and code samples for building Windows desktop applications using the Windows Presentation Foundation framework. It provides a sample library focused on desktop window management, declarative user interface layouts, and the Model-View-ViewModel architectural pattern. The collection includes practical examples of XAML-based declarative interfaces and the synchronization of data between business logic and the user interface via the Model-View-ViewModel pattern. It offers reference implementations for applying accessibility standards an

MvvmCross is a .NET MVVM framework designed for building cross-platform applications by separating business logic from native user interfaces. It functions as a navigation engine and a UI data binding library, enabling the encapsulation of logic within view models that are reused across different operating systems. The framework provides a native hardware abstraction layer and a dependency injection container to decouple components and provide a consistent interface for accessing device features. It coordinates type-safe transitions between native screens and manages the synchronization of da

This repository provides a collection of starter templates, reference projects, and implementation guides for integrating Firebase services into Android applications. It serves as a boilerplate for building mobile apps with built-in cloud backend integration. The project includes examples for connecting Android applications to large language models for generative AI features. It also provides sample code for managing user identity and authentication, as well as demonstrations for integrating cloud databases and serverless functions. The codebase covers a broad range of capabilities, includin

deepstream.io is an open-source realtime server that synchronizes JSON records, events, and remote procedure calls across clients and backend services. It functions as a realtime data sync server, event pub/sub server, record database server, and RPC server, all within a single platform. The server authenticates and authorizes every message using multiple strategies including JWT, HTTP, and file-based credentials, with a declarative permission language controlling access to records, events, and RPCs at a granular level. The platform distinguishes itself through its combination of realtime dat

deployd is a realtime API framework and MongoDB backend as a service that allows for the creation of networked interfaces synchronizing data and events between clients and servers. It functions as a JavaScript API middleware that can be integrated with HTTP servers to provide authentication, request interceptors, and realtime capabilities. The project features a self-hosted API management dashboard for configuring resource settings, managing data collections, and monitoring server status through a web-based interface. It includes a realtime data synchronization engine that pushes live databas

Snowflake is a cross-platform mobile app starter designed for building iOS and Android applications using a single JavaScript codebase. It provides a pre-configured boilerplate to accelerate the initial development process for mobile applications. The project includes a Redux state management template for coordinating global application state and persisting user sessions, along with a REST API integration framework for communicating with remote or local servers via HTTP requests. It also features a localization system that maps user interface content into multiple languages based on the devic

Handsontable is a JavaScript data grid that provides a spreadsheet-like interface for managing and editing large datasets within web applications. It functions as a virtualized data table that renders only visible cells to maintain performance, paired with a synchronization layer that binds the grid to underlying data structures. The project distinguishes itself through a built-in spreadsheet calculation engine for evaluating mathematical and logical expressions and a dedicated tool for exporting grid content into Excel XLSX files. It ensures interoperability with external spreadsheet softwar

async-graphql is a type-safe framework for building specification-compliant GraphQL servers in Rust. It uses procedural macros to automatically generate schemas from native language structures, ensuring consistency between the data model and the API specification. The project provides native support for Apollo Federation v2, allowing entities and fields to be shared and resolved across multiple distributed subgraphs. It also implements real-time data streaming via WebSocket subscriptions and asynchronous event streams. The framework includes a wide array of capabilities for schema design, su

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