CortexViral writes hook-first Instagram captions, optimised hashtags, and CTAs in your voice — from a single line of input. Free, fast, and ready to publish.
Trained on your existing posts to keep captions on-brand and unmistakably yours.
Every output ships with 15-25 high-relevance hashtags and a tested CTA.
Toggle between Reel scripts and static-feed captions — formatted to fit each.
A photo, a product, a thought — one line is enough.
Friendly, professional, playful, inspirational, urgent.
Get caption + hashtags + CTA. Regenerate variants until it feels right.
Pre-tuned variants of this tool, optimised for the voice and pain points of specific industries.