ASM-VISUALIZER

Developer Tools

Only for Mac

$19.99

Mac

ASM-VISUALIZER is a professional 8086 assembly editor, emulator, and debugger — designed for students, educators, and developers who want to truly understand how CPUs work at the hardware level. WRITE A full-featured code editor powered by Monaco (the engine behind VS Code), with NASM, MASM, and TASM syntax support, real-time error squiggles, auto-indent, and syntax highlighting tuned for assembly. RUN Execute 8086 programs instantly with a built-in WASM-powered emulator. No installations, no configuration. Supports INT 10h video output, INT 21h DOS services, text mode, and Mode 13h graphics. DEBUG Step through your code instruction by instruction. Watch registers update in real time with animated highlights, inspect memory byte-by-byte, visualize the stack, and monitor CPU flags as they change. VISUALIZE Live CPU state panel shows all 8086 registers, segment registers, flags, and the stack — updating with every instruction. See exactly what your code does to the hardware. FEATURES NASM, MASM, and TASM dialect support Monaco editor with full 8086 syntax highlighting Built-in WASM emulator — no backend required Step debugger with register animation Memory inspector with hex/ASCII view Stack visualization INT 10h / INT 21h / INT 15h support Mode 13h graphics output (320×200) Dark and light themes Save and share code via GitHub Gist Retro program library with examples Cycle counter and performance metrics Whether you're taking an architecture course, teaching assembly to students, or just curious how computers really work — ASM-VISUALIZER makes it beautiful, intuitive, and fun.

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Version 1.0.12

The developer, David Frucht, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    David Frucht
    Size
    68.6 MB
    Category
    Developer Tools
    Compatibility
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    • Mac
      Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 51 more
    • English, Afrikaans, Amharic, Arabic, Bengali, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Filipino, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Lithuanian, Malay, Malayalam, Marathi, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swahili, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
    Age Rating
    4+
    Copyright
    © 2026 David Frucht. All Rights Reserved.
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.