ChatGPT on Demand on any Website

As the name suggests, WriteFastAI is a tool designed to help busy professionals think smart and write fast. This ChatGPT-powered AI Chrome extension lets you reply well, summarize quickly, reword intelligently, write smart comments, explain text and even copywrite.

Think Smart, Write Fast, Save Time.

WriteFastAI - Chrome Extension Toolbar Image


Explore the powerful features of Write Fast AI.


Effortlessly craft insightful and relevant comments on any platform with AI-powered assistance.


Enhance your text's clarity and style with advanced rewording tools, ensuring your message is effectively communicated.


Respond to messages and comments swiftly with context-aware, AI-generated replies that keep the conversation flowing.


Condense long articles, reports, and emails into concise summaries, capturing key points in a fraction of the time.


Break down complex topics into understandable explanations, making information more accessible and digestible for your audience


Create compelling and persuasive copy effortlessly, whether for marketing campaigns, social media posts, or website content.

Is it for me?

You might ask, let me answer.

Need to rephrase text to sound more professional or clear?

Yes, it is for you. It excels at rewording content to enhance clarity and professionalism.

Struggle with crafting responses to emails or online comments?

Yes, this tool is for you. It simplifies composing replies, saving you time and effort.

Want to engage more effectively in online discussions or forums?

Absolutely, this tool is for you. It aids in generating insightful comments that resonate with your audience.

Have complex topics you need help breaking down into simpler terms?

Yes, it is for you. It specializes in explaining difficult concepts in an easy-to-understand way.

Looking to condense long articles or posts into quick summaries?

Yes, this tool is for you. It’s great for creating summaries that capture the essence of lengthy texts.

Need assistance with creative writing or crafting compelling content?

Definitely, this tool is for you. It serves as a virtual copywriter, enhancing your content creation process.

Customizable AI Prompts

Tailor your experience by adding custom prompts for each function, ensuring personalized and relevant AI assistance.

  • Custom prompts for commenting, rewording, replying, summarizing, explaining, and copywriting.
  • Intuitive interface for prompt management and customization.

Tone & Length Control

Adjust the tone and length of AI-generated text to suit your specific needs, whether it's for a quick reply or a detailed explanation.

  • Choose from professional, witty, or conversational tones.
  • Select output length: micro, short, medium, or long.

Lifetime License. You pay it. You own it.

Simple pricing. Two options. Choose whichever suits you best.

Multiple License Plan

27$ One time

  • 5 Licenses (Can install 5 times)
  • Priority Support
Buy Now

Single License Plan

19$ One time

  • One License (Can install one time)
Buy Now

Frequently Asked Questions

What is WriteFastAI?

WriteFastAI is a powerful AI writing assistant that can help with a variety of writing tasks, including content generation, summarization, and more.

How does it work?

Get the Chrome extension, add your OpenAI key, and refresh any website. Select text, and a toolbar will appear unlocking superpowers for you to play with that text.

How can I get support for WriteFastAI?

If you need assistance or have questions, you can reach out to our support team at

Can I change the prompts used by WriteFastAI?

Yes, you have the ability to customize prompts to tailor the AI-generated content to your specific needs and desired tone.

Do I need to provide my own OpenAI API key?

Yes, users are required to provide their own OpenAI API key to use WriteFastAI's AI capabilities.

Is user data stored by WriteFastAI?

No, WriteFastAI does not store any user data. Everything is processed in the user's browser, ensuring 100% privacy.

Can I change the tone and prompts used by WriteFastAI?

Yes, you have control over the tone (professional, witty, conversational) and prompts, allowing you to customize the generated content to your liking.

What licensing options are available for WriteFastAI?

WriteFastAI offers two types of licenses: a single-install license and a 5-install license, providing flexibility based on your requirements.

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