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

  • Level Up Your Cyber Defense with External Threat Management Icon
    Level Up Your Cyber Defense with External Threat Management

    See every risk before it hits. From exposed data to dark web chatter. All in one unified view.

    Move beyond alerts. Gain full visibility, context, and control over your external attack surface to stay ahead of every threat.
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  • Free and Open Source HR Software Icon
    Free and Open Source HR Software

    OrangeHRM provides a world-class HRIS experience and offers everything you and your team need to be that HR hero you know that you are.

    Give your HR team the tools they need to streamline administrative tasks, support employees, and make informed decisions with the OrangeHRM free and open source HR software.
    Learn More
  • 1
    Systems Biology Markup Language (SBML)

    Systems Biology Markup Language (SBML)

    A file format for exchanging computational models in systems biology

    The Systems Biology Markup Language (SBML) is an XML-based description language for representing computational models in systems biology. Visit the project web site to learn more.
    Downloads: 24 This Week
    Last Update:
    See Project
  • 2
    A common markup language and a parser to generate documentation in any target format (Html, Latex, Trac, Mediawiki...). The core command relies on a Tcl library: it is easy to create new target formats. Doc files are parameterizable via a header.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    HEML, the Hypertext Edit Markup Language, is a simplified markup language. HEML is implemented in a small Web browser that enables quickly editing web pages. HEML can be used for ordinary Web pages or for a program help system.
    Downloads: 0 This Week
    Last Update:
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  • 4
    KML is a knowledge base with support of logical modeling. Advanced model is used to represent knowledge as a set of statements similar to natural language sentences. This project hosts a set of model storage library and server (vrb-ols) and clients.
    Downloads: 0 This Week
    Last Update:
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  • eProcurement Software Icon
    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
    Learn More
  • 5
    YAML (tm) is a straight-forward data serilization language, offering an alternative to XML where markup (named lists and mixed content) are not needed. YAML borrows ideas from rfc822, SAX, C, HTML, Perl, and Python.
    Downloads: 0 This Week
    Last Update:
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  • 6
    YARML or (Yet Another Readable Markup Langage) is a simple and readable markup language which have the same structure of XML but with new syntax which near to the syntax which used with the high level programming languages like Java,PHP, C and Python.
    Downloads: 0 This Week
    Last Update:
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  • 7

    htmlex

    Htmlex is a poweful hypertext markup language preprocesor.

    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    This Library dynamically translates HTML pages to WML (WAP protocol) pages. WML, which is intended for hand held devices, is very different from HTML and introduces a number of conversion issues. This library utilizes SP for HTML parsing. It comes with
    Downloads: 0 This Week
    Last Update:
    See Project
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