PostFast – Context-first AI growth engine for creators

Summary: PostFast integrates a browser extension and SaaS platform to inject product facts and reference styles into content creation. It enables instant generation of native X (Twitter) replies, captures viral hooks via scraping, and centralizes brand library management to streamline authentic, platform-native content production.

What it does

PostFast combines product information, style references, and platform context to generate and inject native replies directly within social platforms. It also captures viral content for reuse and manages workflows through its extension and web app.

Who it's for

Creators and indie hackers focused on growth and content creation across social platforms.

Why it matters

It eliminates the need to switch between AI tools and social tabs, reducing repetitive tasks and producing authentic, context-aware content efficiently.