Open-source alternatives to Amplify Js

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

Books is double-entry accounting software designed for recording business transactions and managing a general ledger. It functions as an invoicing and billing platform to track accounts payable and receivable, and as a financial reporting tool for generating balance sheets and profit and loss statements. The application is built as an offline-first bookkeeping system that stores data locally during internet outages and synchronizes changes once connectivity is restored. It also includes a retail point of sale system to process immediate sales and record inventory movements. The software cove

This project is a collection of reference implementations, sample code, and starter kits for integrating Firebase backend services into web applications using the JavaScript SDK. It serves as a practical guide for bootstrapping projects with cloud-hosted authentication, databases, and serverless logic. The repository provides specific examples for implementing real-time data synchronization, user identity management, and event-driven cloud functions. It also includes reference code for using local service emulators to test cloud functionality on a local machine before production deployment.

AngularFire is a set of tools for connecting applications to Firebase services. It provides a library of client-side interfaces for managing authentication, object storage, NoSQL databases, and serverless functions. The project utilizes observables and dependency injection to integrate cloud services into the application hierarchy. It features a reactive interface for streaming real-time data, managing document-based databases, and tracking authentication state as a continuous stream of tokens. The platform covers a broad range of cloud capabilities, including identity verification, binary f

FlutterFire is a collection of official plugins that integrate Firebase backend services into Flutter applications. It serves as a backend-as-a-service integration library, providing client-side wrappers for cloud authentication, databases, storage, and monitoring services. The project enables the integration of serverless backend logic and real-time data synchronization using NoSQL documents and state synchronization. It also provides capabilities for generative AI integration, including large language models, image generation, and local machine learning model management. The suite covers a

The AWS Cloud Development Kit is an infrastructure-as-code framework that enables developers to define and provision cloud resources using familiar programming languages. By utilizing construct-based synthesis, it translates high-level, object-oriented code into declarative templates, allowing for the automated management of complex cloud environments through a centralized, code-driven control plane. The framework distinguishes itself through its ability to model infrastructure as a dependency-aware resource graph, ensuring that components are provisioned and updated in the correct order. It

Hoodie is a data synchronization framework and offline-first JavaScript backend designed to keep client-side data stores in sync with a remote backend. It provides a local-first persistence layer that allows applications to remain functional while offline by abstracting the client-side database. The system features a NoSQL backend interface that enables interaction with remote data stores without requiring custom server-side boilerplate code. This is supported by a modular driver system of pluggable backend adapters that connect the synchronization layer to various remote database providers.

Boto3 is the AWS SDK for Python, providing a programmatic interface for managing and automating AWS cloud infrastructure and services. It serves as a cloud management API client and resource manager for provisioning, configuring, and scaling virtual servers, databases, and storage. The library enables the implementation of infrastructure-as-code through declarative templates and scripts, allowing for the deployment of identical resource stacks across multiple accounts and geographic regions. It also provides a framework for coordinating distributed workflows, serverless functions, and contain

BaiduPCS-Go is a Go library and cloud storage client that provides a programmable interface for interacting with Baidu Cloud Storage. It functions as an API wrapper and remote file manager, allowing users to manage files, folders, and accounts without using a web browser. The project includes specialized utilities for extracting direct download URLs to bypass web downloaders and managing multiple cloud identities through session tokens and cookies. It also enables remote file transfers, allowing content from shared links to be moved directly into a cloud account. The system covers a broad ra

Jazz is a local-first relational database and synchronization framework designed for offline-capable applications. It functions as a reactive state management system that treats database records as the primary source of truth, automatically updating user interfaces in real time as underlying data changes. The project distinguishes itself through a collaborative data synchronization model that utilizes row-level versioning to track branching edit histories. It implements a security engine based on identity-claim row security, which enforces granular permissions on individual records, and suppo

minio-go is a client library and software development kit for interacting with S3-compatible object storage. It provides a programmatic interface for Go applications to manage buckets and objects using the S3 protocol. The library enables the execution of complex storage operations, including multi-part uploads for large datasets, data synchronization between filesystems, and the management of bucket lifecycle and replication policies. It also supports advanced data retrieval through object searching and SQL-based querying of stored data. The toolkit covers a broad range of administrative an

urql is a GraphQL client and data management tool used to execute GraphQL operations and synchronize data from remote servers within a software application. It functions as a mechanism for fetching, caching, and managing GraphQL data to maintain state across application views. The project features a pluggable middleware architecture and a normalized GraphQL cache. This allows for the insertion of custom logic into the request and response lifecycle to modify client behavior and the organization of responses by unique identifiers to ensure data consistency. The client provides capabilities fo

Keyguard is a password manager application and secure vault designed for storing and organizing logins, passkeys, and sensitive data. It provides a multi-factor authentication vault that utilizes encrypted offline access to ensure credentials remain available without an internet connection. The application includes a dedicated SSH key manager and agent integration for generating and managing keys to access remote servers. It also features a password security auditor that analyzes vault entries to identify compromised, reused, or weak credentials. The system covers a broad range of security c

This project is an asynchronous key-value store designed for client-side data persistence. It provides a unified interface that allows applications to save and retrieve complex data types, including binary objects, while maintaining responsiveness through non-blocking operations. By enabling offline-first functionality, it ensures that data remains accessible even when a network connection is unavailable. The library distinguishes itself through a driver-based abstraction layer that automatically detects the most efficient storage mechanism available in the current browser or mobile environme

supabase-js is a comprehensive client library designed to integrate frontend applications with a hosted backend-as-a-service. It provides a unified interface for interacting with a PostgreSQL database, identity management systems, cloud object storage, and real-time data synchronization. The library features an isomorphic client design that operates across both browser and server environments. It distinguishes itself through a type-safe approach, utilizing TypeScript to map database schemas directly to client-side definitions, and employs a PostgREST-based API to translate JavaScript calls in

Boto is a Python SDK and API wrapper for Amazon Web Services. It serves as a programmatic interface for managing and automating cloud infrastructure, mapping cloud-side resources to native Python objects and methods. The library provides tools for the programmatic control and orchestration of compute, storage, networking, and database resources. It enables the automation of infrastructure deployments and the management of virtual servers, container services, and serverless functions. Capability areas include identity and access management, cloud monitoring and observability, and the administ

Gizmo is a microservice development toolkit and HTTP server framework designed for building distributed services. It provides a collection of libraries for managing service lifecycles, including standardized configuration, logging, and health checks. The toolkit includes a PubSub messaging interface that abstracts the publishing and consuming of messages across different brokers and HTTP endpoints, featuring built-in mocking for integration testing. It also provides a security layer for validating inbound authentication tokens using public key signatures and custom decoders. The project cove

go-cloud is a toolkit of cloud-agnostic libraries that provide portable Go interfaces for interacting with common cloud services. It enables multi-cloud application development by decoupling business logic from specific provider API implementations. The project utilizes a driver-based system to map generic interface calls to vendor-specific requests. This allows applications to switch between different cloud backends for blob storage, relational databases, and asynchronous publish-subscribe messaging without changing the core application code. Beyond storage and messaging, the toolkit includ

Livestore is a reactive state management framework that utilizes a local SQLite database to store and synchronize application data. It provides an event-sourced state store that processes typed events through materializer functions to derive and persist application state. The framework implements offline-first data synchronization using a push-pull engine and append-only event logs to maintain consistency between clients and servers. It includes a real-time presence system for tracking user activity and shared session status across connected clients. The system covers a broad capability surf

The AWS SDK for Go is a software development kit and cloud infrastructure library used to programmatically interact with AWS cloud services. It provides a programmatic interface for authenticating requests, executing operations against regional endpoints, and automating the creation and management of cloud resources. The toolkit utilizes model-driven code generation to create service clients and employs a session-based configuration system to share credentials and global settings across those clients. It implements signature-based request authentication to verify identity and integrity throug

Kanidm is a centralized identity management server designed to handle authentication, authorization, and directory services across distributed infrastructure. It provides a comprehensive framework for managing human and service accounts, utilizing a schema-driven database to store identity records, group memberships, and system attributes. The platform supports a wide range of authentication methods, including passkeys, passwords, and standard protocols like OAuth2, OIDC, LDAP, and RADIUS. The system distinguishes itself through a granular access control engine that enforces security policies

Kubo is a peer-to-peer implementation of the InterPlanetary File System (IPFS) designed for decentralized data storage and content delivery. It uses content-addressing, directed acyclic graphs, and distributed hash tables to identify, distribute, and retrieve data across a network without relying on central servers. The project differentiates itself by providing a virtual filesystem via FUSE, which maps decentralized network namespaces to local operating system directories for direct file access. It also includes integrated HTTP gateways that translate peer-to-peer content into standard web t

Moto is a cloud service mockery framework and API mock server that simulates AWS infrastructure locally. It allows developers to test cloud-dependent code and verify infrastructure-as-code templates without deploying real resources or incurring costs. The project functions as an SDK interceptor that can patch existing service clients to redirect requests to a local mock environment. It can also be run as a standalone HTTP server, enabling any programming language to interact with the simulated endpoints. The framework covers a vast array of simulated capabilities, including data storage, com

Apollo Universal Starter Kit is a full-stack application boilerplate and starter template designed to accelerate cross-platform development across web, mobile, and server environments. It provides a modular architecture that organizes code into independent, self-contained feature directories, combined with a GraphQL-driven data layer and a server-side rendering pipeline to optimize performance and search engine optimization. The project incorporates compile-time code generation tooling to automatically scaffold schemas, resolvers, and components, alongside a real-time subscription engine for

Mattermost Server is an open source collaboration suite and self-hosted team communication platform. It functions as an enterprise chat server and extensible messaging backend that provides a secure environment for professional organizations to exchange messages and coordinate software development. The platform is designed as an AI-integrated communication hub, embedding artificial intelligence into messaging flows to assist users with information retrieval and task completion. It supports a high degree of customization through a plugin-based extension model, allowing for the creation of cust

This project is a full-stack serverless application stack and boilerplate designed for building software-as-a-service applications on the Cloudflare Workers platform. It provides a TypeScript starter that unifies the frontend and backend within a single deployment workflow, integrating essential primitives for authentication, data persistence, and storage. The stack is distinguished by its pre-configured templates for rapid project bootstrapping. It includes integrated support for the Cloudflare D1 SQL database and Cloudflare R2 buckets, providing a predefined architecture for managing relati

Faye is a real-time messaging middleware and WebSocket publish-subscribe server. It functions as a communication layer that routes messages between clients and manages channel subscriptions to enable data synchronization across the web. The project provides a cross-domain communication gateway, allowing web clients on different domains to communicate with a central server. It is built as a clustered messaging backend that can share state across multiple instances using external storage to handle high volumes of persistent network connections. Its capability surface includes pub-sub logic for