Free AI Tools
A growing collection of free AI prompt tools. No signup, no API keys, no daily caps.
AI Image to Prompt
Upload any image → get the prompt to recreate it. Works for Midjourney, Stable Diffusion, Nano Banana, DALL·E, Sora 2.
ChatGPT Prompt Generator
Turn any topic into a pro-grade ChatGPT prompt using the Role · Context · Task · Format framework.
Midjourney Prompt Generator
Full v7 / Niji 6 builder with --ar, --stylize, --chaos and --no parameter control.
Sora 2 Prompt Generator
Cinematic AI video prompts with shot type, camera movement, lighting and audio cues.
Veo 3 Prompt Generator
Google DeepMind Veo 3 prompts with native audio & short dialogue support.
Stable Diffusion Prompt Generator
SDXL / SD 3 / Flux builder with pre-filled negative prompts, sampler, CFG and steps.
Nano Banana Prompt Generator
Gemini 2.5 Flash Image prompts — character-consistent outfit, scene & pose edits.
AI Prompt Enhancer
Paste a weak prompt → get a structured, expert-level rewrite. Works on every AI model.
All-in-One Prompt Generator
Generate prompts for 11+ AI platforms across chat, image, writing, business and code.
What is GENAIHUB?
GENAIHUB is the free AI prompt hub for creators, marketers, and developers. Every tool here is built around one mission: turn vague ideas into production-ready AI prompts in seconds, without signups or paywalls. Whether you're reverse-engineering a Pinterest reference with our image-to-prompt tool, writing your first ChatGPT system prompt, or storyboarding a cinematic Sora 2 video, the structure is the same: pick a tool, fill in a few inputs, copy the result.
Every tool is free, runs in your browser, and is designed around proven prompt frameworks — not random keyword soup. Bookmark this page; new tools ship weekly.