Open-source alternatives to Streamlit

This project is a community-driven directory of software resources, libraries, and tools designed to support iOS application development. It serves as a centralized reference point for developers, organizing a vast ecosystem of third-party components into a searchable, structured index to facilitate discovery and project integration. The repository distinguishes itself through its collaborative curation model, which aggregates disparate utilities into a single, maintainable catalog. By leveraging a flat-file documentation structure, it provides a clear overview of the tools available for nati

BentoML is a machine learning model serving framework and GPU-accelerated inference server designed to package, deploy, and scale AI models as production-ready REST APIs. It functions as an AI model lifecycle manager and an inference graph orchestrator, enabling the chaining of multiple models and custom logic into complex pipelines for advanced task sequences. The framework distinguishes itself through a dynamic batching engine that optimizes GPU throughput and an artifact-based packaging system that bundles model weights and dependencies into immutable archives for consistent deployment. It

Plotly.py is a comprehensive framework for building production-ready data applications and interactive dashboards directly from Python code. It functions as both a high-performance visualization library for browser-based charts and a full-stack tool for transforming analytical scripts into responsive, web-based interfaces. By abstracting away the need for manual HTML or JavaScript, it allows developers to define complex layouts and functional logic using modular, reusable components. The framework distinguishes itself through a robust architecture that handles event orchestration and state sy

Panel is a Python data application framework used to build interactive dashboards and reactive user interfaces by connecting data visualizations, widgets, and callbacks. It functions as a reactive UI library that synchronizes application state with interface updates based on user interactions. The project distinguishes itself by offering multiple execution models, including a FastAPI-based web application server for scalable session management and a WebAssembly compiler that enables Python applications to run directly in the browser without a backend server. It also includes a specialized too

This project is a document-centric e-reader application designed for reading, annotating, and managing digital content across diverse e-ink and mobile hardware platforms. It provides a portable execution runtime and a declarative widget-based toolkit that enables the creation of responsive, hierarchical user interfaces tailored for resource-constrained display environments. The application distinguishes itself through a robust platform-abstraction layer that maps hardware-specific features—such as haptics, screen orientation, and network connectivity—to a unified interface. It utilizes a modu

Mantine is a comprehensive component library for building accessible and responsive web applications. It provides a foundational set of UI elements and layout primitives, anchored by a base component that supports consistent styling, spacing, and layout properties across the entire interface. The library is built on a design-driven theme engine that uses a provider-based system to propagate global design tokens and color schemes throughout an application. The library distinguishes itself through a robust architecture that emphasizes component composition and reusable interaction logic. It uti

Quasar is a cross-platform development framework that enables the creation of web, mobile, and desktop applications from a single codebase. It provides a declarative architecture where state changes automatically trigger updates to the user interface, supported by a centralized data store that synchronizes state across components. The framework distinguishes itself through a build-time platform abstraction that transforms a unified project into multiple target formats, including installable progressive web apps. It includes a comprehensive component-driven library that enforces a consistent d

Taipy is a Python data application framework designed for building production-ready web interfaces that integrate AI algorithms and data pipelines. It provides a comprehensive suite for developing AI dashboards and data application interfaces. The framework includes a data pipeline orchestrator for managing complex workflows and dependencies, alongside a job scheduler for executing background tasks on recurring timetables. It also features a scenario analysis tool for performing what-if simulations by comparing different data input versions to evaluate their impact on algorithm outcomes. Add

Reflex is a full-stack web framework that enables the development of complete web applications using only Python. It provides a unified environment where server-side logic and client-side interfaces are synchronized through a shared, event-driven architecture. By using a declarative component language, the framework compiles code into reactive frontend elements and backend event handlers, allowing developers to manage the entire application lifecycle within a single codebase. The framework distinguishes itself through its reactive state management and integrated AI-assisted development tools.

Linera is a multi-chain smart contract platform designed for horizontal scalability through a microchain-based distributed ledger. By partitioning state into independent, parallel chains that share a common validator set, the protocol enables high-performance execution of modular applications. The system utilizes a WebAssembly-based runtime to ensure secure, platform-independent execution of contract logic across the network. The platform distinguishes itself through an asynchronous messaging framework that coordinates state changes between chains by queuing messages for execution in subseque

Twenty is a headless customer relationship management framework that enables developers to build, version, and deploy custom business applications using code. By utilizing a declarative approach to data modeling, the platform allows for the definition of custom objects, fields, and complex relationships directly within the source code. This schema-driven architecture automatically generates corresponding REST and GraphQL APIs, ensuring that data structures and interface components remain synchronized across development and production environments. The platform distinguishes itself through a m

SvelteKit is a framework for full-stack web development that combines routing and server-side rendering to create websites with both client-side interactivity and server-side logic. It provides the infrastructure to build a variety of application types, including single page applications and static sites. The project utilizes an adapter-based deployment system to support multi-platform hosting. This allows a single codebase to be packaged for different environments, such as standalone Node servers, serverless edge deployments on Cloudflare, or hosted platforms like Vercel and Netlify. The fr

Apache Tomcat is an open-source implementation of the Jakarta Servlet, Pages, Expression Language, and WebSocket specifications, serving as a container for running Java web applications. It provides a modular architecture with a servlet container, connector abstraction for multiple I/O models, and a pipeline-based request processing system that handles cross-cutting concerns through composable components. The server supports container-managed security with configurable realms for authentication against JDBC, LDAP, or memory-based credential stores, and offers TLS encryption with optional Open

Xray-core is a high-performance, cross-platform networking engine designed to manage secure data transmission and traffic routing. At its core, the project utilizes an asynchronous, event-driven runtime model capable of handling thousands of concurrent connections through non-blocking input and output. It functions as a central traffic controller, employing a sophisticated routing engine that dynamically matches incoming network requests to specific outbound proxies based on user-defined criteria. The project distinguishes itself through a modular architecture that decouples proxy and transpo

Geth is a comprehensive execution client for the Ethereum network, serving as a foundational node implementation that processes transactions, maintains the distributed ledger state, and participates in peer-to-peer consensus. It provides a robust infrastructure for synchronizing, validating, and serving blockchain data, utilizing a persistent Merkle Patricia Trie database to ensure the cryptographic integrity of historical records. As a sandboxed smart contract runtime, it executes bytecode according to deterministic protocol rules, enabling the deployment and interaction of decentralized appl

Shiny is a framework for building interactive web applications using R code, eliminating the need for HTML, CSS, or JavaScript. At its core, it provides a reactive programming model that automatically tracks data dependencies and re-executes only the parts of an application that depend on changed inputs. The framework handles server-side UI rendering and maintains persistent WebSocket connections between the browser and server for real-time updates without page reloads. The framework distinguishes itself through deep integration with the R ecosystem, including the ability to embed interactive

This project is a browser-based collaborative design platform that provides a comprehensive workspace for interface design, interactive prototyping, and design system management. It functions as a vector graphics editor that enables teams to create, manage, and iterate on designs in real-time, utilizing a component-based inheritance model to ensure consistency across complex projects. The platform distinguishes itself through a deep integration of design and development workflows. It features a specialized developer handoff workspace that allows for the inspection of design properties, precis

This project provides a containerized virtualization engine that runs full Windows operating system instances within isolated containers. By acting as a cross-platform virtualization runtime, it enables the deployment of desktop environments on any host that supports standard container runtimes, ensuring consistent execution across diverse infrastructure. The system distinguishes itself by utilizing kernel-level virtualization primitives and hardware emulation to execute guest operating systems. It leverages accelerated kernel execution to offload CPU instructions to the host processor for pe

Outline is a full-stack server-side web application designed as a centralized platform for collaborative knowledge management. It provides teams with the infrastructure to create, organize, and share structured documentation through real-time editing tools, while supporting high availability and horizontal scalability in production environments. The platform distinguishes itself through a comprehensive suite of operational and development tools. It includes a command-line interface for managing database schema versioning and structural consistency across deployments, alongside an integrated t

Avalonia is a cross-platform desktop framework that enables the creation of native-feeling applications for Windows, macOS, and Linux from a single codebase. It functions as a declarative UI toolkit, allowing developers to define complex visual hierarchies and interface structures using a markup-based syntax that maps directly to underlying object properties. By utilizing the Model-View-ViewModel architectural pattern, the framework facilitates a clean separation between application logic and user interface layout, which simplifies unit testing and component maintenance. The framework disting

This project is a framework for building interactive, graphical-style terminal applications. It provides a declarative component model that organizes user interfaces into a tree of nested widgets, each managing its own lifecycle, state, and rendering. By subclassing the base application class, developers can construct complex, keyboard-navigable interfaces that run directly within terminal emulators. The framework distinguishes itself through a reactive architecture and a CSS-based layout engine. It uses a reactive attribute system to automatically track state changes and trigger targeted int

Appsmith is a low-code platform designed for building internal business tools, such as operational dashboards and administrative panels. It enables developers to construct dynamic user interfaces by dragging and dropping modular widgets onto a canvas and binding them directly to backend data sources. The platform utilizes a reactive framework that automatically updates interface elements and triggers functions whenever underlying data or widget properties change, eliminating the need for manual event handling. The platform distinguishes itself through a server-side proxy architecture that exe

This project is a declarative visualization library and geospatial framework designed for rendering large-scale data sets within web browsers. It functions as a high-performance graphics engine that leverages hardware acceleration to display complex 2D and 3D visual layers, enabling the visualization of millions of data points through a structured, component-based syntax. The framework distinguishes itself through its ability to synchronize custom data visualizations with third-party mapping platforms. By managing camera states and coordinate systems, it allows developers to overlay high-perf

This project is a web development tutorial site and a Ruby on Rails learning resource designed as a beginner programming guide. It serves as a technical workshop curriculum and a structured framework for organizing and coaching community-led programming events. The site functions as a static site generator that converts Markdown content and templates into pre-rendered HTML pages. This architecture supports the delivery of step-by-step guides and instructional materials used to teach new learners how to build web applications. The content covers a broad range of capabilities, including Ruby o

Crystal is a statically typed, compiled programming language designed for high performance and memory safety. It leverages an LLVM-based compiler to translate source code into optimized machine-executable binaries, while its type-inference-based static analysis enforces strict safety rules during the build process. The language distinguishes itself through a fiber-based concurrent runtime that manages lightweight execution units for asynchronous input and output without blocking the main process. It also features a powerful compile-time macro system that allows for the inspection and transfor

This project is a community-curated directory of resources, libraries, and tools designed to support developers working with the Flutter framework. It functions as a centralized knowledge base, organizing high-quality external references into a structured, human-readable format to assist in the discovery of technical materials for cross-platform application development. The directory distinguishes itself through a comprehensive index of the global Flutter ecosystem, including local user groups, meetups, and communication channels that connect developers to international support networks. It m

This project is an AI agent orchestration platform that provides a visual environment for building, testing, and deploying complex automation workflows. It functions as a low-code development interface where users can chain discrete functional blocks into dependency-aware pipelines to integrate artificial intelligence with external data and services. The platform supports the creation of intelligent conversational agents, automated business processes, and multi-service API orchestrations within a unified workspace. The platform distinguishes itself through its event-driven integration engine,