Showing 33267 open source projects for "open source invoice"

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  • Vibes don’t ship, Retool does Icon
    Vibes don’t ship, Retool does

    Start from a prompt and build production-ready apps on your data—with security, permissions, and compliance built in.

    Vibe coding tools create cool demos, but Retool helps you build software your company can actually use. Generate internal apps that connect directly to your data—deployed in your cloud with enterprise security from day one. Build dashboards, admin panels, and workflows with granular permissions already in place. Stop prototyping and ship on a platform that actually passes security review.
    Build apps that ship
  • Outgrown Windows Task Scheduler? Icon
    Outgrown Windows Task Scheduler?

    Free diagnostic identifies where your workflow is breaking down—with instant analysis of your scheduling environment.

    Windows Task Scheduler wasn't built for complex, cross-platform automation. Get a free diagnostic that shows exactly where things are failing and provides remediation recommendations. Interactive HTML report delivered in minutes.
    Download Free Tool
  • 1
    Douyin TikTok Download API

    Douyin TikTok Download API

    Douyin TikTok Download API

    Use the official interface to capture Douyin|TikTok data, support API calls, Web portals, and batch analysis. Fast, asynchronous, free, open source, ad-free, long-term maintenance. This project is based on PyWebIO , FastAPI , HTTPX , a fast and asynchronous Douyin / TikTok data crawling tool, and realizes online batch parsing and downloading of watermark-free videos or atlases through the web, data crawling API, and iOS shortcut instructions for watermark-free download and other functions. ...
    Downloads: 4 This Week
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  • 2
    WordPressify

    WordPressify

    Automate your WordPress development workflow

    A build system designed to automate your WordPress development workflow. WordPressify is a simple tool that helps you build WordPress themes and plugins. It takes care of the development experience by providing a web server with a database out of the box, with zero configuration required. A development server for PHP and MariaDB database out of the box. Watches for all your changes and reloads in real-time. Preprocessors, PostCSS or Sass with source maps. Babel compiler for writing...
    Downloads: 3 This Week
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  • 3
    OSX Serial Generator

    OSX Serial Generator

    Generate complete sets of Serial Numbers for OSX-KVM, Docker-OSX

    OSX Serial Generator is a shell-based toolkit for generating valid-looking macOS serial numbers, hardware UUIDs, and board serials for use in virtualized macOS environments such as OSX-KVM, Docker-OSX, and OpenCore-based Hackintosh setups. It is positioned for good-faith security and Apple bug bounty research, where having realistic device identifiers is necessary to reproduce issues or test services that validate Apple hardware details. The project provides scripts and configuration...
    Downloads: 6 This Week
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  • 4
    Vim Codefmt

    Vim Codefmt

    Vim plugin for syntax-aware code formatting

    vim-codefmt is a syntax-aware code formatting plugin for Vim that provides a unified interface to many best-in-class formatters across languages. It exposes simple commands to format either a selected range or an entire buffer, and integrates cleanly into everyday editing workflows. The plugin ships with a registry of built-in formatters and a pluggable architecture, allowing other plugins to register additional formatters without friction. Configuration is handled through maktaba and Glaive...
    Downloads: 6 This Week
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  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

    Atera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
    Learn More
  • 5
    GPT-5 Coding Examples

    GPT-5 Coding Examples

    GPT-5 coding examples

    GPT-5 Coding Examples is a demonstration repository showcasing applications generated entirely from a single GPT-5 prompt without hand-written code. The collection highlights GPT-5’s strengths in scaffolding websites, front-end applications, games, and interactive UIs directly from natural-language instructions. Each demo illustrates how developers and non-developers alike can bootstrap functional projects by describing their ideas in plain English. The repository allows users to explore...
    Downloads: 4 This Week
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  • 6
    OpenAI Agents JS

    OpenAI Agents JS

    A lightweight, powerful framework for multi-agent workflows

    openai-agents-js is the JavaScript/TypeScript version of the OpenAI Agents SDK, designed to give developers a lightweight but powerful framework for building agentic workflows, voice agents, and tool-augmented LLM systems in JS/TS environments. The SDK is provider-agnostic, meaning while it’s deeply compatible with OpenAI’s APIs, you can also adapt it to use other backends or extension layers. At its core, it introduces primitives like Agents, Tools, Guardrails, and Handoffs, letting you...
    Downloads: 6 This Week
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  • 7
    X's Recommendation Algorithm

    X's Recommendation Algorithm

    Source code for the X Recommendation Algorithm

    The Algorithm is Twitter’s open source release of the core ranking system that powers the platform’s home timeline. It provides transparency into how tweets are selected, prioritized, and surfaced to users, reflecting Twitter’s move toward openness in recommendation algorithms. The repository contains the recommendation pipeline, which incorporates signals such as engagement, relevance, and content features, and demonstrates how they combine to form ranked outputs.
    Downloads: 2 This Week
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  • 8
    Grida

    Grida

    Open Source Canvas Framework

    Grida is an open-source platform that transforms design assets (like Figma files) into production-ready code. It helps developers bridge the gap between design and development by automating code generation for UI components and layout systems. Grida supports multiple frontend frameworks and aims to streamline the handoff process for teams.
    Downloads: 1 This Week
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  • 9
    NiceGUI

    NiceGUI

    Create web-based user interfaces with Python

    NiceGUI is a Python-based UI framework that enables developers to create interactive web applications using only Python code. It abstracts away the complexities of HTML, CSS, and JavaScript, allowing for rapid development of web interfaces directly from Python scripts. NiceGUI is suitable for building dashboards, control panels, and other web-based tools, especially in contexts like robotics and data visualization.
    Downloads: 2 This Week
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  • Lightspeed golf course management software Icon
    Lightspeed golf course management software

    Lightspeed Golf is all-in-one golf course management software to help courses simplify operations, drive revenue and deliver amazing golf experiences.

    From tee sheet management, point of sale and payment processing to marketing, automation, reporting and more—Lightspeed is built for the pro shop, restaurant, back office, beverage cart and beyond.
    Learn More
  • 10
    CP Editor

    CP Editor

    The IDE for competitive programming

    CP Editor is designed for competitive programming. It helps you focus on your algorithms and automates the compilation, execution and testing of your code. It can fetch test cases from different platforms and submit solutions to Codeforces. It automates all that's reasonably possible and allows you to purely focus on your code. Say no to manual efforts of running and testing your code against expected outputs. It can fetch test cases automatically from almost all competitive programming...
    Downloads: 6 This Week
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  • 11
    Catch2

    Catch2

    A modern, C++-native, test framework for unit-tests, TDD and BDD

    A modern, C++-native, test framework for unit-tests, TDD and BDD - using C++14, C++17 and later (C++11 support is in v2.x branch, and C++03 on the Catch1.x branch). Catch2 is mainly a unit testing framework for C++, but it also provides basic micro-benchmarking features and simple BDD macros. Catch2's main advantage is that using it is both simple and natural. Test names do not have to be valid identifiers, assertions look like normal C++ boolean expressions, and sections provide a nice and...
    Downloads: 6 This Week
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  • 12
    Mikro Orm

    Mikro Orm

    TypeScript ORM for Node.js based on Data Mapper, Unit of Work

    TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. MikroORM allows handling transactions automatically. When you call em.flush(), all computed changes are wrapped inside a database transaction. Uses source code analysis so you do not have to repeat yourself when defining entities. Simply define correct TypeScript types and you are good to go! Supports MongoDB, MySQL, MariaDB, PostgreSQL and SQLite databases, and more can be supported via custom drivers...
    Downloads: 4 This Week
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  • 13
    Gonum

    Gonum

    Set of numeric libraries for the Go programming language

    Gonum is a set of numeric libraries for the Go programming language. It contains libraries for matrices, statistics, optimization, and more. Gonum is a set of packages designed to make writing numerical and scientific algorithms productive, performant, and scalable. Gonum contains libraries for matrices and linear algebra; statistics, probability distributions, and sampling; tools for function differentiation, integration, and optimization; network creation and analysis; and more. We...
    Downloads: 4 This Week
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  • 14
    ArduinoJson

    ArduinoJson

    JSON library for Arduino and embedded C++. Simple and efficient

    ArduinoJson is a C++ JSON library for Arduino and IoT (Internet Of Things). ArduinoJson has a simple and intuitive syntax to handle objects and arrays. ArduinoJson supports both JSON serialization and deserialization. ArduinoJson uses a fixed memory allocation, allowing to work on devices with very little RAM. ArduinoJson can filter large inputs to keep only fields that are relevant to your application, thereby saving a lot of memory. ArduinoJson can parse directly from an input Stream or...
    Downloads: 6 This Week
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  • 15
    Tile38

    Tile38

    Ultra Fast Geospatial Database & Geofencing Server

    ...Tile38 is made up of 3 main components: the server, command line interface tool and server benchmark tool. It is completely free and open source and is available for OSX, Linux, FreeBSD, and Windows.
    Downloads: 2 This Week
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  • 16
    Pwntools

    Pwntools

    CTF framework and exploit development library

    Pwntools is a CTF framework and exploit development library. Written in Python, it is designed for rapid prototyping and development, and intended to make exploit writing as simple as possible. Whether you’re using it to write exploits, or as part of another software project will dictate how you use it. Historically pwntools was used as a sort of exploit-writing DSL. Simply doing from pwn import in a previous version of pwntools would bring all sorts of nice side-effects. This version...
    Downloads: 3 This Week
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  • 17
    Podman

    Podman

    A tool for managing OCI containers and pods

    ...Podman is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System. Containers can either be run as root or in rootless mode. Podman is an open-source project that is available on most Linux platforms and resides on GitHub. Podman is a daemonless container engine for developing, managing, and running Open Container Initiative (OCI) containers and container images on your Linux System. Podman provides a Docker-compatible command line front end that can simply alias the Docker cli, alias docker=podman. ...
    Downloads: 3 This Week
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  • 18
    Go Cursor Help

    Go Cursor Help

    Cursor Free Trial Reset Tool

    A small CLI utility written in Go to reset free trial restrictions of the Cursor AI code assistant on local machines. It automates machine‑ID resets and environment cleanups so users can bypass "Too many free trial accounts" limitations across platforms.
    Downloads: 3 This Week
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  • 19
    fnm

    fnm

    Fast and simple Node.js version manager, built in Rust

    fnm (Fast Node Manager) is a blazing-fast, minimalist Node.js version manager written in Rust. It allows users to install and switch between Node.js versions with near-instant startup, supports .nvmrc and .node-version files, and offers easy cross-platform installation. It’s significantly faster than traditional bash-based managers.
    Downloads: 3 This Week
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  • 20
    Fusio

    Fusio

    Open source API management platform

    Fusio is an open-source API management platform written in PHP that allows developers to create, document, manage, and secure RESTful APIs. It provides a full suite for API lifecycle management, including backend logic, authentication, rate limiting, and analytics. Fusio is ideal for developers or organizations seeking a feature-rich, self-hosted API gateway solution.
    Downloads: 1 This Week
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  • 21
    Puock WordPress Theme

    Puock WordPress Theme

    WordPress Theme - Puock

    Puock is a modern, lightweight WordPress theme designed for personal blogs and content-focused websites. It features a clean and minimalist design with responsive layouts that adapt to different screen sizes. The theme is highly customizable, allowing users to change colors, fonts, and layouts through the WordPress Customizer. Puock is suitable for bloggers and content creators looking for a simple yet stylish online presence.
    Downloads: 3 This Week
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  • 22
    Glamorous Toolkit

    Glamorous Toolkit

    Glamorous Toolkit is the Moldable Development environment

    Programming, exploring data, browsing APIs, knowledge management, log investigations, domain modeling are all part of the same continuum. They require dedicated tools, but those tools can come to you in an integrated experience that is specific to your context. This is the essence of Moldable Development. And this is what Glamorous Toolkit makes practical. Glamorous Toolkit is the Moldable Development environment. It empowers you to make systems explainable through experiences tailored for...
    Downloads: 3 This Week
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  • 23
    Teal

    Teal

    The compiler for Teal, a typed dialect of Lua

    This is the repository of tl, the compiler for Teal, a typed dialect of Lua. The core compiler has no dependencies and is implemented as a single tl. lua file which you can load into your projects. Running tl. loader() will add Teal support to your package loader, meaning that require() will be able to run .tl files. Alternatively, you can find pre-compiled binaries for Linux x86_64 and Windows x86_64 at the releases page. The packages contain a stand-alone executable that can run Teal...
    Downloads: 3 This Week
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  • 24
    Scribble Deluxe

    Scribble Deluxe

    Efficient, internationalized, text renderer for GameMaker

    A modern text renderer for GameMaker 2023.8 by Juju Adams. Efficient, internationalized, multi-effects text renderer for GameMaker. Scribble Deluxe is a comprehensive text rendering library designed to replace GameMaker’s native draw_text() functions without adding unnecessary complexity. Scribble’s design should feel familiar and intuitive for GameMaker users. Scribble Deluxe supports all GameMaker export platforms, with the exception of HTML5.
    Downloads: 3 This Week
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  • 25
    testng

    testng

    TestNG testing framework

    TestNG is a testing framework inspired from JUnit and NUnit but introduces some new functionalities that make it more powerful and easier to use. Run your tests in arbitrarily big thread pools with various policies available (all methods in their own thread, one thread per test class, etc...).
    Downloads: 3 This Week
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