Chrome Extension

OmniPost AI

Auto-post to Facebook, Threads & X (Twitter) — one click, AI-powered.

Get Started GitHub Repo
OmniPost AI Chrome Extension interface

About

What is this?

Chrome extension for multi-platform auto-posting. Type your idea, AI (ChatGPT, Claude, or Gemini) writes the post, publish to Facebook, Threads & X (Twitter).

No API keys needed. Just log into your accounts in Chrome.

AI

AI Models

ChatGPT • Claude • Gemini

Pick your preferred AI model. Each opens in a new incognito/chat tab. ChatGPT uses temporary chat mode — Claude opens claude.ai/new?incognito=true — Gemini opens a fresh session.

  1. Pick "Claude" in the AI dropdown

    In the popup, select Claude from the AI model picker.

  2. Write your prompt and click Post

    Extension opens claude.ai/new?incognito=true, pastes prompt, waits for response.

  3. Content posted automatically

    Same workflow as ChatGPT — no extra steps needed.

Platform

Facebook

Single post • No scheduling

Make sure you're logged into Facebook in Chrome.

  1. Stay logged into Facebook

    Keep an active session in Chrome.

  2. Click "Post Now" in the popup

    Extension opens Facebook, writes content, and posts.

  3. Done

    Post appears on your timeline.

Platform

X (Twitter)

Single tweet • 280 chars

Make sure you're logged into X in Chrome. Supports both x.com & twitter.com.

  1. Stay logged into X

    Keep an active session in Chrome.

  2. Select "X" as platform

    In the popup, pick X from the dropdown.

  3. Click "Post Now"

    AI limits to 280 characters. Posts automatically.

Platform

Threads

Multi-paragraph • Scheduling

Make sure you're logged into Threads in Chrome.

  1. Set paragraph count (optional)

    Set Paragraph Count (1-5). AI generates multi-post thread.

  2. Click "Post Now" or "Schedule"

    Post Now: Writes each paragraph. Schedule: Pick date/time.

  3. Done

    Uses chrome.alarms for reliable posting.

Guide

How to Use

Getting Started

  1. Click OmniPost AI icon in Chrome toolbar.
  2. Log into target platform in Chrome.

Post Content

  1. Pick AI model (ChatGPT / Claude / Gemini).
  2. Pick Platform (Threads / Facebook / X).
  3. Set Paragraph Count (Threads only).
  4. Type content idea or topic.
  5. Click Post Now — AI generates & posts.

Platform Notes

  • Threads: Multi-paragraph + scheduling.
  • Facebook: Single post. No scheduling.
  • X: Single tweet. 280 char limit.
  • Instagram: Not yet supported.