Open-source alternatives to Appwrite

Hanko is an open-source identity provider and customer identity and access management system. It serves as a passkey authentication service and an OAuth and SAML SSO gateway, allowing applications to authenticate users and issue tokens via standard identity protocols. The project distinguishes itself through a strong focus on passwordless access using WebAuthn-based passkeys and email-based passcodes. It provides framework-agnostic authentication interfaces as customizable web components that can be embedded directly into web applications to handle login, registration, and profile management.

Pocketbase is a backend-as-a-service platform that provides a self-contained, single-binary server for building full-stack applications. It integrates a relational database, authentication, and file storage into one executable process, eliminating the need for external infrastructure or complex server management. The platform distinguishes itself through an embedded database engine that runs directly within the application process and a reactive communication layer that pushes live updates to connected clients. By monitoring internal transaction logs, it synchronizes data across multiple user

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

This project is a comprehensive zero-knowledge security suite designed for enterprise credential management, secrets orchestration, and password management. It provides a secure, end-to-end encrypted vault that allows users to store, synchronize, and manage sensitive information, including passwords, passkeys, and infrastructure secrets, across desktop, mobile, and browser environments. The platform distinguishes itself through a strict zero-knowledge architecture where all encryption and decryption occur locally on the client, ensuring that plaintext data remains inaccessible to the server.

Passport is a Node.js authentication middleware designed to manage user identities and session states within web applications. It functions as a request identity verifier that secures application routes by validating user credentials before granting access. The system utilizes a modular authentication strategy, allowing identity verification through interchangeable plugins. This architecture supports the creation of custom authentication strategies for local credentials and the integration of federated identity providers using external protocols. The framework provides capabilities for sessi

This project is a comprehensive educational curriculum designed to build proficiency across modern infrastructure, cloud-native technologies, and systems administration. It functions as a reference library and interview preparation resource, offering a structured collection of conceptual questions, practical coding challenges, and hands-on scenarios that cover the full spectrum of software delivery and operational workflows. The repository distinguishes itself through a modular, domain-specific structure that links instructional problem statements with verified implementation examples. By emp

Superset is a web-based business intelligence platform designed for data exploration, visualization, and interactive dashboarding. It functions as a query-driven analytics engine that connects to various SQL databases, allowing users to perform ad-hoc analysis, define virtual metrics, and build complex data visualizations through a centralized interface. The platform distinguishes itself through a robust semantic layer that transforms raw database schemas into calculated columns and virtual metrics, enabling consistent business logic across an organization. It features a plugin-based visualiz

Pangolin is a zero-trust remote access platform designed to provide secure, identity-aware connectivity to private network resources. It functions as a cloud-native network controller that orchestrates encrypted tunnels, traffic routing, and access policies across distributed environments. By leveraging WireGuard for secure data transport, the platform enables authenticated access to internal web applications, terminal sessions, and remote desktops without exposing services to the public internet. The platform distinguishes itself through a declarative infrastructure model that synchronizes n

CVAT is an open-source, web-based platform designed for annotating images, videos, and 3D point clouds to create high-quality training datasets for machine learning. It functions as a containerized server that orchestrates the entire lifecycle of computer vision data, from initial task creation and manual labeling to quality assurance and final dataset export. The platform distinguishes itself through deep integration with machine learning models, allowing users to deploy custom AI models as serverless functions for automated object detection, tracking, and skeleton annotation. It supports co

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

LoopBack Next is a Node.js API framework used for building REST and multi-protocol APIs. It functions as an OpenAPI server implementation that can either generate machine-readable specifications from code or produce implementation controllers and models from existing specifications. The framework distinguishes itself through a central dependency injection container and a repository-pattern data access layer. This architecture decouples application logic from component construction and persistent storage, allowing for a pluggable system where data sources and business logic are isolated throug

Vendure is a Node.js e-commerce engine and headless commerce framework built with NestJS and TypeScript. It serves as a multi-channel commerce platform that manages product catalogs, orders, and customers via a strongly typed GraphQL API. The platform is distinguished by its highly extensible architecture, featuring a customizable administrative dashboard where developers can inject custom React components and entity views. It supports multi-channel commerce, allowing the isolation of products, currencies, and regional catalogs from a single unified backend. The engine covers a broad range o

Sa-Token is a Java-based authentication and authorization framework designed to manage user sessions, permissions, and identity verification within web applications and microservice architectures. It provides a centralized security layer that enforces access control policies and identity validation across distributed service environments and API gateways. The framework distinguishes itself through its support for cross-domain single sign-on and its ability to function as an OAuth2 identity provider. It manages user session lifecycles by applying configurable rules for single or multi-login re

Kill Bill is a subscription billing platform and usage-based billing engine designed to manage recurring invoicing and automated payment collection. It functions as a multi-tenant billing infrastructure, providing isolated environments for different organizational entities through a dedicated API. The system is distinguished by a plugin-based extension framework that allows for the integration of third-party payment gateways and custom business logic. It includes a payment gateway orchestrator to handle transactions and refunds, as well as a revenue recognition system to allocate contract rev

Polar is a digital product monetization engine and subscription management system. It serves as a merchant of record platform that handles global sales tax and VAT compliance, providing the infrastructure for selling subscriptions and one-time digital goods via hosted checkouts and embedded payment flows. The project functions as an entitlement and access manager, automating the granting and restriction of digital benefits, license keys, and third-party platform roles. It includes a dedicated usage-based billing infrastructure that tracks customer activity through meters to apply aggregation

This project is a React admin dashboard boilerplate designed for building backend administrative interfaces. It provides a pre-configured development stack that integrates a Redux state management framework, a role-based access control system, and a standardized Axios HTTP client wrapper. The system includes a mock API development environment that serves fake data through a local server to decouple frontend development from backend availability. It uses Vite for module bundling and provides a component-library based UI for constructing management interfaces. The platform covers a broad range

InsForge is a backend-as-a-service platform that provides an integrated suite of tools for managing relational databases, identity provision, object storage, and serverless compute. It functions as an open-source identity provider and a PostgreSQL database manager featuring integrated vector storage and row-level security. The platform serves as an LLM orchestration gateway, offering a unified endpoint to route requests across various AI providers through an OpenAI-compatible interface. It enables AI-driven application generation and connects AI agents to backend resources using a standardize

This project is a community-maintained directory of technical resources, tools, and services that offer free tiers for developers. It serves as a centralized reference point for discovering infrastructure, software, and educational materials, helping individuals and teams minimize operational costs while building and scaling applications. The directory distinguishes itself through a collaborative, community-driven curation model that aggregates metadata about third-party services. By utilizing a hierarchical taxonomy and storing all content in version-controlled, plain-text files, the project

Akaunting is a modular business enterprise resource planning system and self-hosted accounting software. It provides a comprehensive platform for small business financial management, centering on a double-entry bookkeeping system with a general ledger and chart of accounts. The platform is designed for extensibility through a module-based architecture and a dedicated marketplace for procuring third-party applications. It supports multi-tenant data isolation and utilizes role-based access control to manage granular user permissions. Its capability surface covers a wide range of business opera

Yearning is a MySQL SQL audit platform and database change management system. It provides a governance framework for reviewing, approving, and auditing SQL statements executed against MySQL databases. The platform features an AI-powered SQL optimizer that suggests performance improvements and converts natural language requests into executable SQL code. It manages database changes through an approval-based workflow engine that includes automated rollback generation and rule-based syntax validation. The system covers role-based access control, security compliance with multi-factor authenticati

osTicket is an open-source help desk software and ticket management system designed to centralize customer support inquiries from emails, web forms, and API requests. It functions as a multi-channel support tool that converts incoming communications into a structured queue for agent resolution and IT help desk management. The platform features a dedicated customer support portal where users can submit requests, track ticket status, and access a self-service knowledgebase of help articles and FAQs. It integrates secure OAuth2 email authentication to retrieve and send messages without storing l

Entrust is a role-based access control library for the Laravel framework and a general permission management system for PHP. It provides a backend tool for linking users to specific roles and permissions to evaluate authorization rules. The system distinguishes itself through a logic engine capable of complex access rule evaluation, including boolean logic and wildcard-based permission matching. This allows for authorization checks based on pattern matching or requirements where a user must meet all or any of a set of specified permissions. The library covers route access restriction via mid

This is a role-based access control system for Laravel applications that manages user permissions and roles within a database. It provides a database permissions manager to assign specific abilities to users and roles, utilizing authorization gates to restrict access to routes and interface elements. The project features a wildcard permission system that uses pattern matching to grant broad access across multiple related permissions. It also supports team-scoped access control, allowing users to maintain different roles and permission levels across separate organizational contexts or teams.

BTCPay Server is a non-custodial payment gateway and invoice manager designed for accepting Bitcoin and other cryptocurrencies directly into a private wallet. It serves as a self-hosted payment infrastructure that allows merchants to manage digital invoicing and storefronts without relying on third-party intermediaries. The system distinguishes itself through a non-custodial wallet architecture that ensures private keys remain on the user's own hardware or server. It integrates the Lightning Network for instant, low-cost transactions and provides a hardware-wallet signing bridge to secure tra

This is a Backend-as-a-Service SDK for React Native, providing a library to integrate mobile applications with backend services. It serves as a client for managing user authentication, cloud databases, and remote file storage within a mobile environment. The SDK enables mobile developers to implement secure login flows using OAuth, email, and phone verification. It includes a database client for performing CRUD operations on structured data and a storage client for uploading and retrieving binary assets from remote cloud buckets. Additionally, it features a WebSocket-based interface to receiv

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

Blynk is an embedded device framework and IoT cloud connectivity library designed to establish secure, bi-directional communication between microcontrollers and a remote management platform. It provides the core identity of an IoT device management tool, enabling the synchronization of device states, remote hardware control, and the mapping of hardware data to cloud-based interfaces. The project distinguishes itself through a virtual-pin system that decouples cloud communication from physical pins, allowing for hardware-independent data exchange. It also supports advanced architectural offloa