PromptForge

What it does

PromptForge is an AI workspace with 14 tools — writing, code, SEO, research, data formulas, and more — built around your own API key instead of a subscription. No middleman markup, keys encrypted in your browser. Code Helper actually runs JavaScript live and auto-fixes errors with 3 different strategies. Data Wizard executes generated formulas against real sample data. Business Strategist gives you a radar chart, competitor map, and live revenue calculator from one idea.

14 specialized AI tools — Code Helper, SEO Optimizer, Business Strategist, Creator Studio and more. Bring your own API key. Runs in your browser. Free forever.

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  PromptForge2025 · github.com · ▲474

  PromptForge: Open-source AI prompt engineering workbench with systematic evaluation I built PromptForge after getting frustrated with the manual trial-and-error approach to prompt engineering. Most tools are just text editors, but I wanted something that brings software engineering discipline to prompt development. Key technical features: - AI-assisted prompt generation (stop starting from scratch) - Systematic evaluation engine that auto-generates test suites - Multi-model support (Claude, GPT-4, Azure OpenAI) - Go backend with SQLite for performance and simplicity - One-line Docker…

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  SiteForge.io2024 · siteforge.io · ▲97

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  PromptForgeMay 2026 · forge402.app · ▲1

  8 AI tools. Try 1 free instantly (no wallet). x402 USDC.

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  PromptForgeFeb 2026 · promptforge-app.com · ▲7

  Update AI prompts without redeploying your app

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  PromptForge2025 · forge-ai-interface.lovable.app · ▲10

  Hi HN, I recently built PromptForge — a minimal, developer-first web app that helps you generate high-quality GPT prompts from just a few structured fields. Why? As a developer, I often found myself rewriting similar prompts manually. I wanted a faster and more reliable way to generate optimized prompts for various tasks — coding, debugging, idea generation, etc. So I built a tool that combines structure, speed, and simplicity. What it does: Select a use case (e.g. summarization, code explanation) Fill out a few fields (context, tone, output format) Get a clean, optimized prompt Save, reuse,…

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  Promptforge ProJun 2026 · rasras0.gumroad.com · ▲2

  Build and improve AI prompts

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