Prompt Builder
Build AI prompts like LEGO blocks — reusable & testable
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Jaber Said

Prompt Builder - Build AI prompts like LEGO blocks

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Prompt Builder is a modular prompt engineering platform where you construct AI prompts from drag-and-drop blocks instead of raw text. Stack, reorder, show/hide, and tag individual sections to build complex instructions with precision. Features include dynamic variables for reusable templates, real-time live preview, multi-model execution, voice input with translation, and an editable AI response pane.Organize everything with folders and smart search. Share securely with password-protected links.

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Jaber Said
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Hey Product Hunt! 👋 I created Prompt Builder because I was tired of managing complex prompts in Apple Notes and messy text files. As prompts get longer (especially with reasoning models like o1), editing them becomes a nightmare. I realized we didn't need another "prompt library"—we needed an IDE for Prompt Engineering. So I built it. With Prompt Builder, you can: Stack modular blocks instead of raw text. Use variables to turn one prompt into 100 templates. Test output across different models side-by-side. I’d love to know: What is the biggest pain point in your current prompting workflow? Let me know in the comments below! 👇