Showing 1743 open source projects for "java modelling tools"

View related business solutions
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • 1
    Athena Java

    Athena Java

    Java Backend Knowledge Graph

    ...It also introduces data structures, algorithms, Linux, computer networks, operating systems, web development, security, Docker, and development tools. Several sections frame concepts as interview conversations and include resume and job-preparation guidance. Project examples cover common web systems, permissions, shopping carts, file handling, and messaging platforms. The repository functions as a structured study index for students preparing for Java backend work and technical interviews.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 2
    Pkl

    Pkl

    A configuration as code language with rich validation and tooling

    pkl is a purpose-built configuration-as-code language developed by Apple that combines declarative structure, validation, and tooling to improve over traditional configuration formats like JSON, YAML, or Plists. Its goal is to let you write configuration logic (modules, imports, conditions, defaults) while still producing static outputs suitable for tools that expect JSON, YAML, or other formats. Configurations in Pkl are type-safe and support validation constraints (e.g. bounds, relations) so many errors can be caught before deployment. The language is embeddable, meaning it can run inside applications (Java, Swift, Go, etc.) to load configuration dynamically with the same safety guarantees. ...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 3
    Odigos

    Odigos

    Distributed tracing without code changes

    Odigos supports any application written in Java, Python, .NET, Node.js and Go. Historically, compiled languages like Go have been difficult to instrument without code changes. Odigos solves this problem by uniquely leveraging eBPF. Odigos currently supports all the popular managed and open source destinations. By producing data in the OpenTelemetry format, Odigos can be used with any observability tool that supports OTLP. Odigos automatically scales OpenTelemetry collectors based on...
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    V Programming Language

    V Programming Language

    Simple, fast, safe, compiled language for developing software

    Simple language for building maintainable programs. You can learn the entire language by going through the documentation over a weekend, and in most cases, there's only one way to do something. This results in simple, readable, and maintainable code. Despite being simple, V gives a lot of power to the developer and can be used in pretty much every field, including systems programming, webdev, gamedev, GUI, mobile, science, embedded, tooling, etc. V avoids doing unnecessary allocations in the...
    Downloads: 11 This Week
    Last Update:
    See Project
  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
    Start Free Trial
  • 5
    Cucumber JVM

    Cucumber JVM

    Cucumber for the JVM

    Cucumber-JVM is a pure Java implementation of Cucumber. You can run it with the tool of your choice. Cucumber-JVM also integrates with all the popular Dependency Injection containers. It’s simple. Whether open source or commercial, our collaboration tools will boost your engineering team's performance by employing Behavior-Driven Development (BDD). And with our world-class training, take it to places it’s never been.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 6
    J2CL

    J2CL

    Java to Closure JavaScript transpiler

    ...J2CL is widely used internally at Google in large-scale applications such as Gmail and Google Docs, demonstrating its production readiness and scalability. It supports interoperability between Java and JavaScript through tools like JsInterop, enabling seamless integration of code across languages.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    AWS Toolkit for Visual Studio Code

    AWS Toolkit for Visual Studio Code

    Local Lambda debug, CodeWhisperer, SAM/CFN syntax, etc.

    ...Amazon CodeWhisperer provides inline code suggestions using machine learning and natural language processing on the contents of your current file. Supported languages include Java, Python and Javascript.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 8
    GraalPy

    GraalPy

    A Python 3 implementation built on GraalVM

    GraalPy is a high-performance implementation of the Python language for the JVM built on GraalVM. GraalPy is a Python 3.11 compliant runtime. It has first-class support for embedding in Java and can turn Python applications into fast, standalone binaries. GraalPy is ready for production running pure Python code and has experimental support for many popular native extension modules.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 9
    OpenAPI Generator CLI

    OpenAPI Generator CLI

    A node package wrapper

    OpenAPI Generator CLI is a command-line interface for generating API client SDKs, server stubs, and documentation from OpenAPI specifications. It helps developers automate the process of creating client libraries and backend implementations for APIs.
    Downloads: 1 This Week
    Last Update:
    See Project
  • Stop vibe-debugging. Icon
    Stop vibe-debugging.

    Plug Claude into your app's actual errors.

    AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
    Free 30 days.
  • 10
    Spock Framework

    Spock Framework

    The Enterprise-ready testing and specification framework

    Spock is a testing and specification framework for Java and Groovy applications. What makes it stand out from the crowd is its beautiful and highly expressive specification language. Thanks to its JUnit runner, Spock is compatible with most IDEs, build tools, and continuous integration servers. Spock is inspired from JUnit, RSpec, jMock, Mockito, Groovy, Scala, Vulcans, and other fascinating life forms.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 11
    RStudio

    RStudio

    RStudio is an integrated development environment (IDE) for R

    RStudio is a powerful, full-featured integrated development environment (IDE) tailored primarily for the R programming language but increasingly supportive of other languages like Python and Julia. It brings together console, editor, plotting, workspace, history, and file-management panes into a unified interface, helping data scientists, statisticians, and analysts to work more productively. The IDE is cross-platform: there are desktop versions for Windows, macOS and Linux, as well as a...
    Downloads: 18 This Week
    Last Update:
    See Project
  • 12
    Swagger Codegen

    Swagger Codegen

    Template-driven engine to generate documentation

    Swagger-Codegen contains a template-driven engine to generate documentation, API clients and server stubs in different languages by parsing your OpenAPI / Swagger definition. Simplify API development for users, teams, and enterprises with the Swagger open source and professional toolset. Find out how Swagger can help you design and document your APIs at scale. The power of Swagger tools starts with the OpenAPI Specification, the industry standard for RESTful API design. Individual tools to...
    Downloads: 1 This Week
    Last Update:
    See Project
  • 13
    JCTools

    JCTools

    Java Concurrency Tools for the JVM

    Java Concurrency Tools for the JVM. This project aims to offer some concurrent data structures currently missing from the JDK. There’s more to come and contributions/suggestions are most welcome. JCTools has enjoyed support from the community and contributions in the form of issues/tests/documentation/code have helped it grow. JCTools offers excellent performance at a reasonable price (FREE!
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    EasyExcel

    EasyExcel

    Lightweight Java library developed by Alibaba for reading and writing

    EasyExcel is a Java library focused on reading and writing Excel files with very low memory usage, making it suitable for large datasets that overwhelm traditional APIs. It uses streaming/event-driven parsing to avoid loading entire workbooks into memory, and it maps rows to Java objects via simple annotations. Writers support multiple sheets, custom styles, merged cells, and template-based filling so production reports remain maintainable.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 15
    Micrometer

    Micrometer

    App observability facade for the most popular observability tools

    Micrometer provides a simple facade over the instrumentation clients for the most popular observability systems, allowing you to instrument your JVM-based application code without vendor lock-in. Think SLF4J, but for observability. Micrometer provides vendor-neutral interfaces for timers, gauges, counters, distribution summaries, and long task timers with a dimensional data model that, when paired with a dimensional monitoring system, allows for efficient access to a particular named metric...
    Downloads: 15 This Week
    Last Update:
    See Project
  • 16
    Standard Webhooks

    Standard Webhooks

    The Standard Webhooks specification

    Standard Webhooks is a community-driven specification and set of open-source tools designed to make webhooks consistent, secure, and interoperable across providers. The project defines strict guidelines covering aspects like signature formats, headers, timestamps, replay protection, and forward compatibility. It includes reference implementations for signature verification and signing across multiple languages such as Python, JavaScript/TypeScript, Go, Rust, Ruby, PHP, C#, Java, and Elixir, along with additional community SDKs. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    picocli

    picocli

    Framework for building GraalVM-enabled command line apps

    Picocli is a one-file framework for creating Java command-line applications with almost zero code. It supports a variety of command-line syntax styles including POSIX, GNU, MS-DOS and more. It generates highly customizable usage help messages that use ANSI colors and styles to contrast important elements and reduce the cognitive load on the user. Picocli-based applications can have command line TAB completion showing available options, option parameters, and subcommands, for any level of...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 18
    PartiQL Lang Kotlin

    PartiQL Lang Kotlin

    PartiQL libraries and tools in Kotlin.

    This is a Kotlin implementation of the PartiQL specification. PartiQL is based on SQL-92 and has added support for working with schemaless hierarchical data. PartiQL’s extensions to SQL are easy to understand, treat nested data as first-class citizens, and compose seamlessly with each other and SQL. This repository contains an embeddable reference interpreter, test framework, and tests for PartiQL in Kotlin.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    XXL-SSO

    XXL-SSO

    A distributed single-sign-on framework

    XXL-SSO is a distributed single sign-on (SSO) system designed to provide centralized authentication and authorization across multiple applications and services. It enables users to log in once and gain access to various systems without needing to reauthenticate, improving both user experience and security. The project is built with scalability in mind, supporting distributed environments where multiple services need to share identity information. It likely includes token-based authentication...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 20
    SyncLite

    SyncLite

    Build Anything Sync Anywhere

    SyncLite is an open-source, low-code, comprehensive relational data consolidation platform enabling developers to rapidly build data-intensive applications for edge, desktop and mobile environments. SyncLite enables real-time, transactional data replication and consolidation from various sources including edge/desktop applications using popular embedded databases (SQLite, DuckDB, Apache Derby, H2, HyperSQL), data streaming applications, IoT message brokers, traditional database systems(ETL)...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 21
    Lambda Builders

    Lambda Builders

    Python library to compile, build & package AWS Lambda functions

    Python library to compile, build & package AWS Lambda functions for several runtimes & frameworks. AWS Lambda Builders also supports Custom workflow through a Makefile. Lambda Builders is the brains behind the sam build command from AWS SAM CLI. Lambda Builders is a Python library. It additionally exposes a JSON-RPC 2.0 interface to use in other languages. Build Actions could be implemented in any programming language. Preferably in the language that they are building. Some build actions...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    Application Inspector

    Application Inspector

    A source code analyzer built for surfacing features of interest

    Microsoft Application Inspector is a software source code characterization tool that helps identify coding features of first or third party software components based on well-known library/API calls and is helpful in security and non-security use cases. It uses hundreds of rules and regex patterns to surface interesting characteristics of source code to aid in determining what the software is or what it does from what file operations it uses, encryption, shell operations, cloud API's,...
    Downloads: 40 This Week
    Last Update:
    See Project
  • 23
    Netty-socketio

    Netty-socketio

    Socket.IO server implemented on Java

    ...YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. CentOS, 1 CPU, 4GB RAM runned on VM, CPU 10%, Memory 15%, 6000 xhr-long polling sessions or 15000 websockets sessions, 4000 messages per second.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    OneinStack

    OneinStack

    OneinStack - A PHP/JAVA Deployment Tool

    This script is written using the shell, in order to quickly deploy LEMP/LAMP/LNMP/LNMPA/LTMP(Linux, Nginx/Tengine/OpenResty, MySQL in a production environment/MariaDB/Percona, PHP, JAVA), applicable to RHEL 7, 8, 9(including CentOS, RedHat, AlmaLinux, Rocky), Debian 9, 10, 11, 12, Ubuntu 16, 18, 20, 22 and Fedora 27+ of 64.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Metals

    Metals

    Scala language server with rich IDE features

    Scala language server with rich IDE features.
    Downloads: 3 This Week
    Last Update:
    See Project
Auth0 Logo