Showing 129 open source projects for "define"

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  • 1
    Valibot

    Valibot

    Modular and type safe schema library for validating structural data

    Valibot is a modular and type-safe schema library for validating structural data. It provides developers with tools to define and enforce data schemas, ensuring data integrity and consistency across applications.​
    Downloads: 0 This Week
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  • 2
    MCP Framework

    MCP Framework

    A framework for writing MCP (Model Context Protocol) servers

    ...It provides an out-of-the-box architecture with automatic directory-based discovery for tools, resources, and prompts. The framework offers powerful MCP abstractions, enabling developers to define components in an elegant manner, and includes a CLI to streamline the server setup process. ​
    Downloads: 0 This Week
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  • 3
    Agenda

    Agenda

    Lightweight job scheduling for Node.js

    A light-weight job scheduling library for Node.js.
    Downloads: 0 This Week
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  • 4
    io-ts

    io-ts

    Runtime type system for IO decoding/encoding

    io-ts is a TypeScript runtime type system for decoding, validating, and encoding data at application boundaries. It solves a common TypeScript limitation: static types disappear at runtime, but external inputs still need to be checked safely. The library lets developers define codecs that represent both runtime validation logic and static TypeScript types. This approach is especially useful for APIs, configuration files, JSON payloads, database results, and any data that enters a program from an unknown source. io-ts integrates closely with functional programming patterns and the fp-ts ecosystem. Its main value is helping TypeScript applications keep runtime data validation aligned with compile-time type inference.
    Downloads: 4 This Week
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  • 5
    EmDash

    EmDash

    EmDash is a full-stack TypeScript CMS based on Astro

    EmDash is a modern content management and editing system designed to provide a flexible and developer-friendly environment for creating, managing, and publishing structured content. It emphasizes modularity and extensibility, allowing developers to define custom content types, editing experiences, and workflows tailored to their needs. The system likely includes a rich editing interface, enabling users to create complex documents with structured data and formatting. It separates content from presentation, making it easier to reuse and distribute content across different platforms. ...
    Downloads: 4 This Week
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  • 6
    RuFlo

    RuFlo

    The leading agent orchestration platform for Claude

    ...Ruflo integrates with modern tooling ecosystems, making it suitable for tasks such as code manipulation, automation, and data processing. Its design reflects a focus on productivity, offering a balance between flexibility and simplicity so that users can quickly define and run custom processes. The tool also supports extensibility, enabling developers to adapt it to different environments and use cases.
    Downloads: 4 This Week
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  • 7
    YourInfo

    YourInfo

    Real-time browser fingerprinting demo with cross-browser tracking

    ...The platform prioritizes privacy by focusing on local storage or user-controlled databases, ensuring sensitive data stays under the user’s control rather than in third-party servers. Users can define types of information, tag entries for quick categorization, and perform intuitive searches when they need to recall something like a phone number, address, or secret detail. It also integrates with conversational models so that users can query “What’s my friend’s address?” or “Remind me of my travel dates” in plain language, and the system responds using secure data access while respecting permission boundaries.
    Downloads: 5 This Week
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  • 8
    React Hotkeys Hook

    React Hotkeys Hook

    React hook for using keyboard shortcuts in components

    A React hook for using keyboard shortcuts in components in a declarative way. Define your hotkeys declaratively once, and let React Hotkeys take care of all the nitty-gritty details of binding and unbinding them. Memoization, enable on form fields, check for currently pressed keys. React Hotkeys has you covered. React Hotkeys Hook is written with TypeScript, so all typings come with it.
    Downloads: 0 This Week
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  • 9
    TypeChat

    TypeChat

    Library for building type-safe natural language interfaces with LLMs

    ...TypeChat addresses these challenges by replacing traditional prompt engineering with a concept called schema engineering. Instead of writing complex prompts, developers define types that represent the intents supported by their applications. It then uses those type definitions to construct prompts for language models and translate user input into structured data that follows the defined schema.
    Downloads: 6 This Week
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  • 10
    Testcontainers node

    Testcontainers node

    Supports tests, providing lightweight, throwaway instances of database

    Testcontainers is an open source library for providing throwaway, lightweight instances of databases, message brokers, web browsers, or just about anything that can run in a Docker container. No more need for mocks or complicated environment configurations. Define your test dependencies as code, then simply run your tests and containers will be created and then deleted. With support for many languages and testing frameworks, all you need is Docker. Use a containerized instance of your database to test your data access layer code for complete compatibility, without requiring a complex setup on developer machines. ...
    Downloads: 4 This Week
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  • 11
    DBOS Transact TS

    DBOS Transact TS

    Lightweight Durable TypeScript Workflows

    dbos-transact-ts is a TypeScript framework that enables transactional workflows backed by PostgreSQL, combining application logic with durable execution. It provides an easy way to write fault-tolerant functions that survive failures, retry automatically, and persist their execution state. Built for modern serverless and distributed environments, it's ideal for consistency-critical operations.
    Downloads: 0 This Week
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  • 12
    Dagger

    Dagger

    Containerized automation engine for programmable CI/CD workflows

    Dagger is an open source automation engine designed to build, test, and deliver software in a consistent and programmable way. It enables developers to define software delivery workflows using code instead of complex shell scripts or configuration files. Dagger executes tasks inside containers, ensuring that automation runs in identical environments across local machines, CI servers, or cloud infrastructure. Dagger provides a core execution engine and system API that orchestrates containers, filesystems, secrets, repositories, and other resources needed during development pipelines. ...
    Downloads: 5 This Week
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  • 13
    ClawRouter

    ClawRouter

    Smart LLM router

    ...Because distributed AI systems often involve many services, agents, and runtime components interacting with each other and with external APIs, ClawRouter helps ensure that communication paths remain clear, efficient, and adaptable as systems scale. The framework supports plugin-based extensions so developers can define custom protocols, transformation hooks, and monitoring handlers without modifying core routing logic. It also offers operational features like health checking, metrics reporting, and failure handling that make production deployments more reliable.
    Downloads: 5 This Week
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  • 14
    Easings.net

    Easings.net

    Easing Functions Cheat Sheet

    Easings .net is a visualization and reference project dedicated to easing functions, which are widely used in animations and transitions to create natural motion. Instead of linear changes, easing functions help define how values accelerate or decelerate over time, resulting in smoother and more dynamic effects. The project provides a clear, interactive showcase of common easing equations such as quadratic, cubic, quartic, and elastic functions. It is a valuable resource for developers and designers who want to understand and compare different easing behaviors before applying them to web animations, game mechanics, or UI interactions. ...
    Downloads: 2 This Week
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  • 15
    Blueprint

    Blueprint

    A React-based UI toolkit for the web

    ...It is optimized for building complex data-dense interfaces for desktop applications which run in modern browsers and IE11. This is not a mobile-first UI toolkit. Blueprint's change log and migration guides for major versions live on the repo's Github wiki. These packages define development dependencies and contain build configuration. They adhere to the standard NPM package layout, which allows us to keep clear API boundaries for build configuration and isolate groups of devDependencies. They are published to NPM in order to allow other Blueprint-related projects to use this infrastructure outside this monorepo.
    Downloads: 1 This Week
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  • 16
    Open Multi-Agent

    Open Multi-Agent

    One runTeam() call from goal to result

    ...It focuses on distributing responsibilities across specialized agents, each handling a specific part of a problem, such as planning, execution, or validation. The system emphasizes modularity, allowing developers to define agent roles, communication protocols, and workflows. It supports iterative collaboration, where agents exchange information and refine outputs collectively. The architecture is designed to be extensible, enabling integration with external tools and APIs to expand agent capabilities. It is particularly useful for research, automation, and development workflows that require multiple perspectives or stages of processing. ...
    Downloads: 3 This Week
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  • 17
    Architecture as a code

    Architecture as a code

    Visualize, collaborate, and evolve the software architecture

    Architecture as a code is an open-source modeling language and toolkit that enables software teams to describe, visualize, collaborate on, and maintain software architecture as code. Inspired by the C4 Model and other architectural DSLs, LikeC4 lets you define your system’s structure in a textual DSL and then automatically generate consistent diagrams that reflect that design, ensuring that architecture documentation stays in sync with source code changes. The project includes command-line tooling, IDE integrations, live preview servers, and diagram exporters, letting developers instantly see architectural diagrams update as the model evolves. ...
    Downloads: 3 This Week
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  • 18
    Cofounder

    Cofounder

    AI tool that generates full-stack web apps with generative UI systems

    ...Generated projects are stored locally and can be launched using standard development commands, allowing developers to run and modify the code that the system produces. Cofounder relies on configurable nodes and sequences that define how AI operations are executed.
    Downloads: 4 This Week
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  • 19
    LangGraph.js

    LangGraph.js

    Framework to build resilient language agents as graphs

    LangGraphJS is a JavaScript framework designed to build stateful AI applications and autonomous agents using graph-based execution models. Developed as part of the LangChain ecosystem, the framework allows developers to represent complex AI workflows as graphs where nodes represent tasks and edges define the flow of execution. This structure makes it easier to implement long-running agents, multi-step reasoning pipelines, and workflows that require persistent state. LangGraphJS supports advanced capabilities such as branching logic, loops, and conditional execution, enabling developers to build sophisticated AI systems that can adapt to dynamic conditions. ...
    Downloads: 4 This Week
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  • 20
    conf

    conf

    Simple config handling for your app or module

    All you have to care about is what to persist. This module will handle all the dull details like where and how. It does not support multiple processes writing to the same store. I initially made this tool to let command-line tools persist some data.
    Downloads: 1 This Week
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  • 21
    Pluely

    Pluely

    The Open Source Alternative to Cluely

    Pluely is an open-source AI automation framework designed to simplify the development and deployment of AI-driven workflows across applications and services. The system focuses on orchestrating tasks performed by large language models and other AI components, allowing developers to define structured workflows where models interact with tools, APIs, and external systems. By providing a modular architecture for building AI pipelines, the platform enables developers to connect multiple processing steps such as data retrieval, prompt execution, analysis, and response generation. The project emphasizes flexibility, allowing developers to extend the platform with custom integrations and automation logic. ...
    Downloads: 2 This Week
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  • 22
    OpenStatus

    OpenStatus

    Status page with uptime monitoring & API monitoring as code

    ...Built with modern web technologies such as Next.js and Tailwind CSS, openstatus supports both managed deployments and self-hosted environments using lightweight Docker images. Its monitoring-as-code approach allows teams to define checks in YAML and integrate them into CI/CD workflows for automated validation.
    Downloads: 1 This Week
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  • 23
    ALLWEONE

    ALLWEONE

    AI tool that generates custom presentations with real-time editing

    Presentation AI by ALLWEONE is an open source tool that uses artificial intelligence to generate complete slide decks from a simple prompt. It helps users create professional presentations quickly, with support for customizable themes, layouts, and styles. You can define slide count, language, and tone, then review or edit the AI-generated outline before finalising. Slides are built in real time, allowing you to watch content develop as the system works. Presentation AI by ALLWEONE includes image generation, rich text editing, and drag-and-drop functionality for easy adjustments. It also supports presentation mode, so you can present directly within the app. ...
    Downloads: 3 This Week
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  • 24
    React DayPicker

    React DayPicker

    Date picker component for React

    Flexible, highly customizable, localizable, with ARIA support, no external dependencies, 7.4kB gzipped. Define the disabled or selected days and change the aspect of each day cell with modifiers. Display the date picker in an overlay using the DayPickerInput component. Specify which days should be selected in your component’s state. Use your own translation strings or import those from moment.js, if you use it. react-day-picker is designed to cover the most common needs for a date picker in web applications. ...
    Downloads: 0 This Week
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  • 25
    Inbox Zero

    Inbox Zero

    AI assistant that automates email tasks to help achieve inbox zero

    ...It aims to reduce the time spent handling email by automatically organizing, prioritizing, and responding to messages using customizable automation rules and artificial intelligence. Users can define prompts or rule-based actions that guide how the assistant processes incoming messages, enabling automated workflows for sorting, replying, or handling routine communication. Inbox Zero is structured as a modern web application built with a monorepo architecture that contains multiple applications and shared packages, allowing modular development and easier maintenance. ...
    Downloads: 4 This Week
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