CO-STAR Prompt Template

CO-STAR Prompt Template

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Introduction
Using CO-STAR to make your prompt works 10x more effective!
Listed on
July 22, 2026
FreeBrowser ExtensionAI Prompt Tools

What is CO-STAR Prompt Template?

CO-STAR Prompt Template is a Chrome browser extension that helps users craft effective prompts for ChatGPT using the CO-STAR prompt engineering framework developed by the Government Technology Agency of Singapore. It seamlessly integrates into the Chrome browser, allowing users to fill in their own text and automatically format it into a well-structured prompt for ChatGPT.

How to use CO-STAR Prompt Template?

  • 1. Install the extension from the Chrome Web Store. 2. Navigate to ChatGPT and click the CO-STAR Prompt Generator icon in the Chrome toolbar. 3. Fill in the CO-STAR framework with your own text. 4. Preview and adjust the prompt in real-time. 5. Click 'Copy' to transfer the formatted prompt to your clipboard and paste it into ChatGPT.

Core features of CO-STAR Prompt Template

  • 1. Seamless integration with Chrome browser
  • 2. CO-STAR framework for prompt creation
  • 3. Effortless prompt creation with automatic formatting
  • 4. Optimized output for more accurate ChatGPT responses
  • 5. Real-time preview feature
  • 6. Copy and paste functionality
  • 7. User-friendly interface for all skill levels
  • 8. Versatile applications for writers, students, and casual users

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