Social Post Summarizer

Chrome Extension that summarizes long posts on social media for free using AI.

Supports: Facebook, X (Twitter), LinkedIn, Reddit.

Features

• Automatically detects long posts, displays "Summarize" button in the corner of the post

• Right-click any text to summarize

• Summarizes using AI (Groq / Gemini) in an overlay popup

• Automatically translates to Vietnamese or selects output language

• Caches results, does not call API again for the same post

• Automatically retries when API rate limit is reached

• Copies summary to clipboard

• Summary history, export JSON

• Customizable prompt

• Automatic dark/light mode

• Badge counting the number of posts summarized in a day

Installation

1. Clone repo: git clone https://github.com/anlvdt/fb-post-summarizer.git

2. Open Chrome → chrome://extensions/ → enable Developer mode

3. Click Load unpacked → select folder fb-summarizer

4. Click extension icon → enter API Key → Save

Free API Key

ServiceFree tierGet keyGroq (recommended) 14,400 req/day console.groq.com/keys
Google Gemini15 req/min aistudio.google.com/apikey

Tech Stack

• Chrome Extension Manifest V3

• Groq API (Llama 3.3 70B) / Gemini API

• Vanilla JS, zero dependencies