Open-source alternatives to Hello.js

React-admin is a framework for building data-driven administrative interfaces that connect to REST or GraphQL backends. It provides a comprehensive suite of tools for managing the full lifecycle of administrative applications, including resource-oriented routing, declarative form scaffolding, and context-driven state management. By utilizing a modular adapter-based architecture, the framework abstracts backend communication, allowing developers to build consistent CRUD interfaces that handle data fetching, authentication, and synchronization automatically. The project distinguishes itself thr

This is a Go client library for interacting with the Slack API, providing a programmatic interface to manage channels, users, and workspace settings. It functions as a bot framework and event handler, allowing for the development of automated assistants that respond to workspace activities. The library includes a dedicated Block Kit builder for constructing complex UI layouts, such as interactive elements, data tables, and visualizations, for rich messaging. It also provides a full implementation for managing user authentication and identity verification through OAuth2 and OpenID Connect. Br

twitteroauth is a PHP library and REST API wrapper used for authenticating and interacting with the Twitter API. It functions as an OAuth 1.0a client that manages the secure handshake process to authorize user accounts and obtain access tokens. The library handles the three-legged authorization flow, including the generation of authorization URLs and the requesting of security tokens. It automates the calculation of cryptographic signatures for requests and manages token-based sessions to maintain authenticated state. The project provides capabilities for social media content management, suc

This is a Go library for obtaining, refreshing, and attaching OAuth 2.0 access tokens to HTTP requests. It provides a generic token source interface with interchangeable implementations for different OAuth 2.0 grant types, and wraps the Go net/http transport layer to automatically attach access tokens as Authorization headers on outgoing requests. The library supports the authorization code flow, generating consent page URLs and exchanging authorization codes for tokens. It also implements the device authorization grant for authentication on devices without a browser, and the resource owner p

This project is a PHP library for implementing a spec-compliant OAuth 2.0 authorization server. It serves as an authentication framework for managing user identities and client authorizations, providing the necessary components to issue and validate access and refresh tokens. The server supports a wide range of standardized authorization flows, including authorization code exchange, device grants, implicit flows, and PKCE enforcement. It handles complex token lifecycles through refresh token rotation, scope management, and the use of asymmetric keys for signing digital tokens. The system pro

Octelium is a zero-trust network access platform and identity-aware proxy designed to secure private HTTP, SSH, and SQL resources. It functions as a secure gateway that validates human and workload identities using OIDC, SAML, and FIDO2 passkeys before granting access to internal applications and SaaS APIs. The system is distinguished by its secretless access broker, which injects credentials—such as API keys, passwords, and AWS Sigv4 signatures—at the gateway level so users can access databases and cloud resources without managing secrets. It further specializes in AI gateway administration,

InvenTree is an open-source inventory management platform built on Django, designed for tracking parts, stock levels, and supply chain operations through a web interface and REST API. The system uses barcodes—including QR codes, 1D barcodes, and Data Matrix codes—as primary identifiers for scanning, linking, and triggering inventory actions, and extends core functionality through a Python plugin framework supporting custom actions, UI panels, barcode handlers, and scheduled tasks. The platform distinguishes itself through a comprehensive plugin-based extensibility system that allows custom in

Spotipy is a Python client library for interacting with the Spotify Web API. It provides a programmatic interface to manage music data, user accounts, and media playback. The library implements a full OAuth 2.0 client capable of handling authorization codes, client credentials, and implicit grants. It includes a token manager that supports automated token refreshing and pluggable caching backends to maintain stateful sessions. The project covers music metadata retrieval and search, allowing for the lookup of artists, albums, and tracks via resource identifiers and URIs. It also provides capa

This project is a comprehensive enterprise architecture for building multi-tenant distributed systems, implemented as a Spring Cloud microservices platform. It provides a complete framework for managing microservices, focusing on multi-tenant data architecture and centralized identity provision. The platform is distinguished by its integrated approach to identity and security, utilizing an OAuth2 identity provider to manage single sign-on, role-based access control, and JWT token issuance across distributed services. It further separates organizational boundaries through multi-tenant data iso

PRAW is a Python wrapper for the Reddit API, functioning as a REST API client and social media data crawler. It provides a programmatic interface to fetch data, manage account content, and interact with the platform. The library implements a comprehensive OAuth 2.0 client supporting multiple authorization flows, including password, implicit, and refresh tokens, as well as read-only guest access. It distinguishes itself through a rate-limit-aware request scheduler that tracks server-side throttling to prevent API quota exhaustion and employs lazy-loading resource objects to fetch data only whe

Prism Launcher is a Minecraft game launcher and instance manager designed to authenticate game accounts and start installations via a graphical interface or command line. It functions as a modpack installer that automates the setup of preconfigured modification sets from various third-party platforms. The project focuses on maintaining multiple independent game installations on a single machine, using isolated environments to ensure that different versions, mods, and save files do not conflict. It includes a Java runtime configurator to detect and assign specific system environments for compa

The Kubernetes Python Client is a programmatic interface for cluster automation and resource management. It provides a REST-based API client that maps method calls to HTTP verbs and JSON payloads to create, update, delete, and monitor workloads and infrastructure components. The client features dynamic schema mapping and resource mapping, allowing it to control custom objects and unique resource definitions without requiring pre-defined classes or static schemas. It supports YAML manifest parsing to convert structured files into compatible objects for bulk resource deployment. The toolset co

Octokit.js is a GitHub API SDK used to interact with GitHub via REST and GraphQL interfaces. It serves as a client for executing typed queries and mutations, managing authenticated REST requests, and handling signed webhooks across Node.js, Deno, and browser environments. The library features a plugin-based request pipeline and an adapter-based HTTP client, allowing the interception of requests and responses across different runtimes. It employs strategy-based authentication to separate credential management from request logic, supporting static tokens, OAuth flows, and GitHub App installatio

Octokit is a JavaScript API client and REST API wrapper designed for executing authenticated requests to GitHub from browser-based environments. It serves as a programmatic interface for managing repositories, issues, pull requests, and user profiles. The library provides a high-level wrapper that organizes API functionality into resource-specific namespaces. It implements an asynchronous promise interface and includes mechanisms for pagination-aware data fetching and rate-limit tracking to prevent service interruptions. The tool covers a broad range of administrative capabilities, including

The Google API Node.js client is a development kit designed for integrating Google Cloud services into server-side JavaScript applications. It provides generated interfaces that map application calls to remote service endpoints, enabling developers to execute requests and interact with cloud resources through a unified library. The library distinguishes itself through a modular architecture that allows developers to install specific service submodules individually, which optimizes application bundle sizes and improves startup performance. It also features automated OAuth2 token lifecycle mana

Postiz is an open-source social media management platform designed to centralize the scheduling, publishing, and analysis of content across diverse social networks, community forums, and blogging platforms. It functions as a unified hub where users can coordinate, review, and distribute content through a shared team workspace, while leveraging integrated artificial intelligence to assist in drafting text and generating multimedia assets. The platform distinguishes itself through a modular architecture that utilizes a provider-specific adapter pattern to ensure consistent content distribution

This project is a comprehensive link management and marketing attribution platform designed for creating, tracking, and analyzing shortened URLs. It functions as a centralized hub for marketing analytics, providing tools to monitor link performance, visualize conversion funnels, and manage affiliate programs through a unified dashboard. The platform distinguishes itself by integrating advanced attribution modeling and partner management directly into the link infrastructure. It supports complex marketing workflows, including automated commission calculations, fraud detection, and payout distr

Octokit.rb is a Ruby client library and REST API wrapper used to programmatically interact with GitHub. It provides a structured interface for automating workflows, managing repositories, and transforming raw HTTP responses into Ruby objects. The library differentiates itself through hypermedia-driven navigation, which uses URI templates and link relations to discover resources dynamically. It also implements automated result pagination to combine paginated responses into single arrays and uses fingerprint-based caching to reduce redundant network requests. The tool covers a broad range of c

This project provides technical documentation and reference guides for spot trading, including specifications for REST, WebSocket, and FIX protocols. It serves as a comprehensive resource for integrating with spot trading endpoints to execute trades, query account data, and fetch market statistics. The project distinguishes itself by supporting institutional-grade connectivity through the Financial Information eXchange standard and simple binary encoding to reduce latency and payload size. It also includes a dedicated sandbox environment for validating trading logic and strategies without fin

Codeception is a full-stack testing framework for PHP applications that provides a unified interface for unit, functional, and acceptance testing. It serves as a tool for automating real desktop and mobile browsers via the WebDriver protocol and acts as a client for testing REST and SOAP APIs. The framework is distinguished by its support for Behavior-Driven Development, allowing users to write human-readable test specifications in Gherkin language to align technical tests with business requirements. It implements actor-based action mapping to connect these natural language steps to executabl

This project is a Node.js client and database driver for Elasticsearch. It acts as a REST API wrapper that translates JavaScript method calls into HTTP requests to index, search, and manage documents within a distributed search and analytics engine. The library provides a programmatic interface for cluster management and data integration. It includes tools for discovering cluster nodes and managing indices to maintain connection stability and organize data storage. The client covers a broad range of operations, including document lifecycle management for CRUD actions, search query execution,

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

Grant is an OAuth authentication proxy that interfaces applications with third-party identity providers to manage handshakes and token exchanges through a transparent proxy layer. It provides a secure OAuth client implementation that validates OpenID Connect tokens and manages multi-provider identity under a unified configuration. The project differentiates itself through support for serverless authentication flows, allowing the proxy logic to be deployed as cloud functions. It implements advanced security mechanisms including Proof Key for Code Exchange and private key JWT authentication to

ZenML is an extensible machine learning orchestration framework designed to manage the end-to-end lifecycle of data pipelines and AI agent workflows. It functions as a durable orchestrator that executes machine learning tasks as directed acyclic graphs, ensuring that every step is containerized for consistent performance across local, cloud, and hybrid infrastructure. By decoupling pipeline code from underlying compute and storage backends, the platform allows developers to define infrastructure-agnostic stacks that remain portable across diverse environments. The project distinguishes itself

Twikit is a Python library and API wrapper designed for interacting with X (Twitter). It simulates browser requests and mimics private network traffic to enable programmatic access to the platform without requiring an official API key. The project focuses on social media automation and data extraction, featuring tools for scraping user profiles, trending topics, and chronological tweet histories. It includes a session manager that handles user authentication, two-factor authentication, and cookie persistence to maintain active account access. The library's capabilities cover a broad range of

This project is a Ruby wrapper for the Twitter API, providing a programmatic interface to interact with the platform's REST and streaming endpoints. It serves as an API client for managing social content, users, and account activity. The library includes specialized tools for real-time data streaming, allowing the acquisition of live public posts, account events, and user activity. It differentiates itself with advanced media handling, such as chunked uploading for large files, and integrated traffic management to monitor rate limits and detect streaming stalls. Broadly, the project covers c

PeerTube is a decentralized, open-source video hosting platform that enables users to operate independent, interoperable servers. By utilizing the ActivityPub protocol, it connects these servers into a global, federated network where users can follow channels, discover content, and interact across different instances. The platform is designed to function as a self-hosted video content management system, providing a community-driven alternative to centralized media services. What distinguishes PeerTube is its hybrid approach to content delivery and infrastructure management. It integrates peer