The Story
Every tool on dua9.online started as a personal frustration. A writer needing a faster way to draft articles. A Pinterest creator tired of designing pins from scratch every day. A marketer who wanted to make AI-generated text sound less robotic.
Instead of building one bloated platform that tries to do everything, we built a collection of focused, fast, single-purpose tools. Each one lives on its own page. Each one loads in under a second. Each one does exactly what it says.
We add a new tool every week or two. This site started with eight. It will keep growing.
What We Believe
Speed is a feature
Every tool loads fast. Most run entirely in your browser with no server roundtrip needed.
Your keys, your data
When tools need API keys, they stay in your browser session only. We never store, log, or share them.
One job, done well
No feature creep. Each tool solves exactly one problem and gets out of the way.
Always growing
We ship a new tool every week or two. This site is a living project, not a finished product.
The Tools
Our current lineup covers writing, visual design, image compression, and Pinterest creation — but that's just where we started. The roadmap includes tools for email, SEO, social media, and more.
- Write Viral Articles Free — Type a topic, get a full SEO article outline-to-draft in seconds.
- AI Image Prompt Generator — Turns any topic into a cinematic, style-locked image prompt (free with Groq).
- Pinterest Pin Creator AI — Generates scroll-stopping titles, hooks and layouts for Pinterest.
- Pin Design Studio — 55 visual styles, 3 AI image models, full pin generation pipeline.
- Compress Images — No Upload — Shrink images 70%+ privately in your browser. Nothing leaves your device.
- Make AI Text Sound Human — Paste AI copy, choose a tone, get prose that passes any AI detector.
- Pinterest Viral Pin Analyzer — Reverse-engineers top-performing pins to decode hooks, layouts and words.
API Keys & Privacy
Some tools (like Smart AI Writer and Content Humanisor) need an API key from Anthropic, Groq, or Replicate. Here's our firm promise: your API keys are never stored on our servers. They live in your browser's session storage only — which means they're wiped the moment you close the tab.
We don't have accounts, so there's nothing to breach. We don't have a database of user data, because we don't collect it. For full details, see our Privacy Policy.
Contact
Got an idea for a tool? Found a bug? Just want to say hi? Head over to the contact page — we read every message.