Browse free open source Build Tools and projects below. Use the toggles on the left to filter open source Build Tools by OS, license, language, programming language, and project status.

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    Save up to 91% with Spot VMs and get automatic sustained-use discounts. One free VM per month, plus $300 in credits.

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  • 1
    Genparse is a command line parser generator. Based on a simple description of the command line options you want in your program, genparse creates the necessary C, C++ or Java code for their processing.
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    Downloads: 17 This Week
    Last Update:
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  • 2
    Developer tools for EXPRESS (ISO 10303-11), an information modeling language. The core of this project is a Java Express parser using the ANTLR parser generator. This project was initiated by the National Institute of Standards and Technology.
    Downloads: 3 This Week
    Last Update:
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  • 3
    A universal parsing tool and source code generator for generative programming. It extracts useful information by parsing (BNF parser generator) and generates source code by several techniques, by interpreting a scripting language for flexibility.
    Downloads: 1 This Week
    Last Update:
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  • 4
    C++ LALR parser generator
    Downloads: 0 This Week
    Last Update:
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  • Build on Google Cloud with $300 in Free Credit Icon
    Build on Google Cloud with $300 in Free Credit

    New to Google Cloud? Get $300 in free credit to explore Compute Engine, BigQuery, Cloud Run, Vertex AI, and 150+ other products.

    Start your next project with $300 in free Google Cloud credit. Spin up VMs, run containers, query exabytes in BigQuery, or build AI apps with Vertex AI and Gemini. Once your credits are used, keep building with 20+ products with free monthly usage, including Compute Engine, Cloud Storage, GKE, and Cloud Run functions. Sign up to start building right away.
    Start Free Trial
  • 5
    JS/CC LALR(1) Parser Generator

    JS/CC LALR(1) Parser Generator

    A LALR(1) Parser Generator for JavaScript written in JavaScript

    JS/CC is a parser generator for JavaScript/ECMAScript, which is entirely written in ECMAScript itself. It produces LALR(1) parsers with integrated lexical analyzers. JS/CC can run as a website or be invoked from a console, and runs on several platforms.
    Downloads: 0 This Week
    Last Update:
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  • 6
    The LALR parser generator (LPG) is a tool for developing scanners and parsers written in Java, C++ or C. Input is specified by BNF rules. LPG supports backtracking (to resolve ambiguity), automatic AST generation and grammar inheritance.
    Downloads: 0 This Week
    Last Update:
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  • 7
    XMLpg - XML parser generator. Generates an XML parser in C++ from a DTD. The generated code will provide validation as well as conversion of the input XML.
    Downloads: 0 This Week
    Last Update:
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