Showing 37 open source projects for "open source invoice"

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    Cloud tools for web scraping and data extraction

    Deploy pre-built tools that crawl websites, extract structured data, and feed your applications. Reliable web data without maintaining scrapers.

    Automate web data collection with cloud tools that handle anti-bot measures, browser rendering, and data transformation out of the box. Extract content from any website, push to vector databases for RAG workflows, or pipe directly into your apps via API. Schedule runs, set up webhooks, and connect to your existing stack. Free tier available, then scale as you need to.
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  • 1
    MicroPython

    MicroPython

    Python implementation for microcontrollers and constrained systems

    MicroPython is a lean and efficient implementation of the Python 3 programming language that includes a small subset of the Python standard library and is optimised to run on microcontrollers and in constrained environments. The MicroPython pyboard is a compact electronic circuit board that runs MicroPython on the bare metal, giving you a low-level Python operating system that can be used to control all kinds of electronic projects. MicroPython is packed full of advanced features such as an...
    Downloads: 42 This Week
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  • 2
    php-src

    php-src

    The PHP Interpreter

    This is the official source repository of PHP, a popular open-source server-side scripting language primarily used for web development. PHP powers a significant portion of the web, including platforms like WordPress, Drupal, and Laravel. The repository includes the core language engine, standard libraries, and tools for compilation and deployment across systems.
    Downloads: 10 This Week
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  • 3
    ZIG

    ZIG

    General-purpose programming language and toolchain

    A general-purpose programming language and toolchain for maintaining robust, optimal, and reusable software.
    Downloads: 7 This Week
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  • 4
    SmallBASIC

    SmallBASIC

    SmallBASIC is a fast and easy to learn BASIC language interpreter

    SmallBASIC is a lightweight and powerful BASIC interpreter designed for simplicity and speed, suitable for hobbyists, educators, and retro computing enthusiasts. It offers a traditional text-based programming experience reminiscent of early microcomputers, while including modern features such as structured programming, graphics, and file I/O. SmallBASIC runs on multiple platforms, including Windows, Linux, Android, and DOS, making it accessible across a wide range of systems.
    Downloads: 4 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.
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  • 5
    Ring Programming Language

    Ring Programming Language

    Simple and flexible programming language for applications development

    Simple and flexible programming language for applications development. Ring is a practical general-purpose multi-paradigm language. The supported programming paradigms are Imperative, Procedural, Object-Oriented, Functional, Metaprogramming, Declarative programming using nested structures, and Natural programming. The language is portable (MS-DOS, Windows, Linux, macOS, Android, WebAssembly, etc.) and can be used to create Console, GUI, Web, Games, and Mobile applications.
    Downloads: 4 This Week
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  • 6
    Wuffs

    Wuffs

    Wrangling Untrusted File Formats Safely

    Wuffs is a memory-safe, zero-dependency library and domain-specific language for writing high-performance image codecs and related parsers. Instead of trusting ad-hoc C, Wuffs code is compiled to C with strong bounds, integer, and state checks inserted by construction, aiming to eliminate whole classes of security bugs without a heavy runtime. The design prioritizes predictable performance: decoders avoid dynamic allocation by default, return explicit “short read” signals, and run well in...
    Downloads: 2 This Week
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  • 7
    MetaCall Core

    MetaCall Core

    The ultimate polyglot programming experience

    A polyglot runtime that enables seamless execution of multiple programming languages within the same environment, improving interoperability between different codebases.
    Downloads: 0 This Week
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  • 8
    Checked C

    Checked C

    Checked C is an extension to C that lets programmers write C code

    Checked C is an extension to C that lets programmers write C code that is guaranteed by the compiler to be type-safe. The goal is to let people easily make their existing C code type-safe and eliminate entire classes of errors. Checked C does not address use-after-free errors. Checked C adds static and dynamic checking to C to detect or prevent common programming errors such as buffer overruns and out-of-bounds memory accesses. The goal of the project is to improve systems programming by...
    Downloads: 0 This Week
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  • 9
    The Acton programming language

    The Acton programming language

    The Acton Programming Language

    Write programs that seamlessly run as a distributed system over an entire data center or region. All without a single line of RPC code. Acton automatically persists the state of your application (orthogonal persistence) to a built-in distributed backend. No need to use a database or message broker ever again. 0 lines of persistence code. Built-in redundancy; Acton's transactional, high-performance distributed RTS can seamlessly resume application state after hardware failures. Never stop for...
    Downloads: 0 This Week
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  • Skillfully - The future of skills based hiring Icon
    Skillfully - The future of skills based hiring

    Realistic Workplace Simulations that Show Applicant Skills in Action

    Skillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
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  • 10
    CLIPS Rule Based Programming Language
    CLIPS is a forward-chaining rule-based programming language written in C that also provides procedural and object-oriented programming facilities.
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    Downloads: 464 This Week
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  • 11
    Agena

    Agena

    Agena is an interpreted procedural programming language.

    Agena is an easy-to-learn procedural programming language designed for science, scripting, and many other applications. Binaries are available for Windows, Linux, Solaris, OS/2, Mac OS X, Raspberry Pi and DOS.
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    Downloads: 206 This Week
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  • 12

    Seed7

    Interpreter and compiler for the Seed7 programming language.

    Interpreter, compiler, libraries, documentation and examples for the Seed7 programming language. Seed7 is a general purpose programming language. It is a higher level language compared to Ada, C/C++ and Java. In Seed7 new statements and operators can be declared easily. Functions with type results and type parameters are more elegant than a template or generics concept. Object orientation is used where it brings advantages and not in places where other solutions are more obvious. Seed7...
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    Downloads: 34 This Week
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  • 13
    Ficl - small systems scripting with OO
    Ficl is a lightweight, embeddable scripting language designed to be incorporated into other programs, including memory constrained embedded systems. Written in Standard C, Ficl conforms to the 1994 ANSI Standard for Forth, and provides several useful extensions including object oriented programming that can wrap compiled code and hardware interfaces. Unlike Lua or Python, Ficl acts as a component of your system - you feed it stuff to do, it does the stuff, and comes back to you for...
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    Downloads: 13 This Week
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  • 14

    aime

    A C-like, high level programming language and interpreter.

    aime is a programming language intended for application extension purposes. It is simple, with a C like syntax and automatic resource management. The interpreter interface has many options for connecting the interpreted programs to the embedding application state. It allows application supervision with regard to such concerns as execution length, memory allocation, error reporting. A standalone interpreter together with many demo/test programs is included.
    Downloads: 1 This Week
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  • 15
    AQ

    AQ

    AQ is an interpreted programming language. It is fast, small, simple a

    AQ is a fast, small, simple and safe interpreted programming language. It may be a great work.
    Downloads: 0 This Week
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  • 16

    SC

    SC is a C based meta/programming language/environment

    SC is a C based/compatible language that uses a binary source code format and a "special" editor to provide a far more advanced programming and meta-programming environment. The basic philosophy is to "simplify" the "form" and not the "meaning" of C. SC allows you to write source code that can analyze and modify itself. Which in turn allows you to create far more compact and powerful libraries, templates, toolkits and simply source code, using techniques similar to aspect and/or language...
    Downloads: 0 This Week
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  • 17
    Ring

    Ring

    Simple and flexible programming language for applications development

    ...The language is portable (MS-DOS, Windows, Linux, macOS, Android, WebAssembly, Microcontrollers, etc.) and can be used to create Console, GUI, Web, Games and Mobile applications. The language is designed to be simple, small and flexible. Ring is distributed as a Free-Open Source project under the MIT License.
    Downloads: 2 This Week
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  • 18
    SNOBOL4, while known primarily as a string language excels at any task involving symbolic manipulations. It provides run time typing, garbage collection, user data types, on the fly compilation.
    Downloads: 2 This Week
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  • 19
    Ravi Programming Language

    Ravi Programming Language

    Ravi is a dialect of Lua, featuring limited optional static typing

    Ravi Programming Language is a derivative of Lua 5.3 with limited optional static typing and MIR-based JIT compiler. Ravi is a derivative/dialect of Lua with limited optional static typing and JIT/AOT compilers. The name Ravi comes from the Sanskrit word for the Sun. Lua is perfect as a small embeddable dynamic language so why a derivative? Ravi extends Lua with static typing for greater performance under JIT compilation. However, static typing is optional and therefore Lua 5.3 programs are...
    Downloads: 0 This Week
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  • 20
    Inform

    Inform

    The core software distribution for the Inform 7 programming language

    Inform is the core distribution of a powerful programming language and design system created for writing interactive fiction, where authors describe stories as text adventure games that players explore through typed commands. The language is distinctive for its natural-language-inspired syntax that reads almost like English, allowing storytellers to define rooms, objects, characters, and narrative logic in an intuitive way that emphasizes expressive clarity and literary structure. When you...
    Downloads: 1 This Week
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  • 21
    SWLPC is both a stand alone scripting (interpreted) language and MUD programming language derived from LPC.
    Downloads: 0 This Week
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  • 22
    X11-Basic

    X11-Basic

    A BASIC interpreter and compiler with graphics.

    X11-Basic is a dialect of the BASIC programming language with graphics capability that integrates features like shell scripting, cgi-Programming and full graphical visualisation into the easy to learn basic language on modern computers.
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    Downloads: 31 This Week
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  • 23
    newRPL

    newRPL

    The classic RPL programming language reimplemented and reimagined.

    This project reimplements from scratch the RPL language made popular by HP programmable calculators, in portable C/C++. The main goal is to release a complete computing environment for various targets. There's currently 4 active targets: the HP 50g, HP39gs and HP40gs calculators and a PC simulator (see the downloads section!). Other ports are planned for the future.
    Downloads: 26 This Week
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  • 24
    Programming language designed to simplify the development of small and large-scale networked applications. PROSE includes an execution engine and language that compiles into platform-independent bytecode. Bytecode can also be assembled directly.
    Downloads: 0 This Week
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  • 25
    A programming language to create games. Originally based on the Fenix Project.
    Downloads: 0 This Week
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