AI-Powered Copywriting Extension + SaaS

Create Content Faster Than Ever

Generate platform-native copy, analyze ideas, and design visuals in seconds. Your all-in-one AI creative partner for social media growth.

Install Extension

Launch Web App

postfast.today

Supercharge Your Workflow

Everything you need to go from idea to published post.

PostFast Chat

Targeted copywriting for every platform.

Multi-model support for diverse writing styles.
Platform-specific tone matching (X, Reddit, XiaoHongShu, etc.).
Theme-based generation tailored to your product.

New Chat

Generate a viral tweet for my new AI design tool.

product: PostFast

thinking...analyzing_product...

Here's a draft optimized for X/Twitter:

"Stop designing like it's 2020. 🎨✨
Meet the AI workflow that actually understands your style..."

𝕏

📕

Product Management

Your product's knowledge base, always ready for AI.

export const myProduct = {

id: "prod_01",

name: "PostFast SaaS",

features: [

"AI Copywriting",

"Browser Extension"

target: "Marketers, Creators, Producters, Programmers, etc."

}

SYNCED

Socratic Questioning

Turn vague ideas into concrete product plans.

Idea: "An AI Tool"

"What problem does it solve?"

Efficiency?

Cost?

Inspiration Generation

Never run out of content ideas again.

Trending

"How I built a SaaS in 24 hours..."

Quick Illustration

Create stunning visuals in seconds.

GIF ExportMP4 ExportMulti-Frame

Timeline00:05:00

Plans and Pricing

Choose a subscription plan that suits you and start your AI writing journey