Executive Ghostwriting Tool

Their Voice. Your Words.

Paste in your executive's strongest LinkedIn posts and PostCast will analyze their writing patterns, capture their voice, and build a content formula — so you can ghostwrite new posts that sound authentically like them.

Reading their posts
Extracting their voice, patterns, and writing style…
· Parsing their post history
· Identifying top-performing content
· Extracting voice & style patterns
· Building their post formula
· Saving voice profile

Their voice profile is ready.

PostCast saves their profile in this browser only — it's not stored on any server. If you clear your browser data or switch devices, you'll need to rebuild it.

We recommend downloading a copy to keep it safe.

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Your raw input
03 — Choose your post
Voice profile active
Generated from your pasted LinkedIn posts
Anthropic API Key
Stored in your browser only. Get yours at console.anthropic.com?PostCast uses Anthropic/Claude to analyze your text and make recommendations. Your API key gives PostCast access to your Anthropic/Claude account for this limited purpose. You may need to purchase API credits from Anthropic to use this tool.
Voice Profile / System Prompt
Auto-generated from your post history. Edit freely — this shapes every post.
Post variations