PromptFox lives inside ChatGPT, Claude, Gemini and every LLM you use — enhancing, compressing, and fixing your prompts before you hit send.
No sign-up required. Works instantly.
Good morning, Alex
write a email to my boss asking for raise and say my performace was good last year
The PromptFox pill lives right inside your AI app
Every use case covered, right inside your AI app.
Turns rough ideas into precise, detailed prompts the AI actually understands.
Cuts token usage without losing meaning. Great for long context windows.
Corrects grammar, clarity, and structure so your intent comes through cleanly.
Strips filler and gets straight to the point.
We just launched. No inflated numbers, no fake reviews. Here's what we actually are right now.
If you send more than a handful of prompts a day, you already know the difference a well-crafted prompt makes. PromptFox closes that gap instantly.
No copy-pasting to another tool. The enhance pill sits inside ChatGPT, Claude, Gemini and every other LLM you already use.
We're early and honest about it. Every piece of feedback goes straight into the next release. You're not a user number — you're a co-builder.
Got feedback or a feature idea?
We read every email. Seriously — it's just us right now.
support@libraryofapps.comStart free. Upgrade when you're ready.
Perfect for trying it out.
$47.88 billed annually
Cancel anytime.
Price increases to $149 soon.
One-time payment, no renewals.
No account needed. Just install and go.