A few months ago I got tired of watching friends struggle to write a decent LinkedIn headline or resume summary—staring at a blank box, unsure what to say about themselves. So I started building ProfileCraftAI, a free toolkit to help with exactly that.
It's now grown into 8 tools:
- LinkedIn Headline Generator
- LinkedIn About Section Generator
- LinkedIn Post Generator
- Professional Bio Generator
- Resume Summary Generator
- Instagram Bio Generator
- ATS Resume Checker
- Profile Picture Generator (background removal + "Open to Work" ring)
The stack
- Next.js (App Router) for the frontend and routing
- Groq's API (Llama models) for generation—fast enough that responses feel near-instant, which matters a lot for a tool people expect to "just work"
- Deployed on Vercel
A few things I learned building this
1. Generic AI output is the biggest complaint people have with AI writing tools. Most of my early effort went into prompt structure—asking for multiple distinct variations, forcing a first-person voice, and avoiding corporate buzzword soup—rather than just "making it sound professional."
2. Free tools still need real content around them. Early on, each tool was just a bare form. Traffic and trust improved a lot once I added actual guides (formulas, examples, and common mistakes) around each tool instead of just the generator itself.
3. Rate limiting on day one, not later. Free AI tools get scraped/abused fast. Wish I'd built this in from the start instead of retrofitting it.
Try it
It's completely free; no signup required: profilecraftai.com
Would genuinely love feedback from this community—what's confusing, what's missing, or what you'd want to see next. Happy to answer questions about the build too.
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