5 Best HARPA AI Alternatives and ChatGPT Extensions in 2025

Using ChatGPT only on its main website can feel limiting. You have to copy and paste between tabs, which slows everything down and breaks your workflow.

If you're looking for a faster way to use ChatGPT while browsing, writing, or doing research, a Chrome extension makes that possible.

ChatGPT Chrome extensions let you use ChatGPT directly on websites without switching tabs. They help you write, summarize, and automate tasks faster right from your browser.

HARPA AI is one option, but it might not work for everyone. If you are looking for a new ChatGPT Chrome extension, you're in the right place.

In this article, we'll cover the 5 best HARPA AI alternatives and ChatGPT extensions you can use in 2025. Let's dive in!

What is HARPA AI?

HARPA AI is a ChatGPT Chrome extension designed to automate tasks directly in your browser. It interacts with web pages using ChatGPT to help you read content, summarize text, write responses, and more.

It's often used by people who want to automate web-based tasks without leaving their current tab.

How is HARPA AI Used?

HARPA AI is mainly used to summarize content, generate responses, and answer questions directly on websites. It adds a ChatGPT assistant to your browser so you can interact with text on the page without copying or switching tabs.

It’s useful for research, writing, and reading tasks, especially if you need quick insights. Though, the interface and features might feel limited for users who want more customization or better integration with their workflow.

Is HARPA AI Free?

HARPA AI offers a demo that lets you try the product for free. Once you hit the limits of the demo, you have to upgrade to a paid plan.

If that doesn't work for you, don't worry, there are plenty of other great ChatGPT Chrome extensions out there to help you use AI on any website.

Things to Look for in ChatGPT Chrome Extensions

Using ChatGPT through an AI extension should feel quick and helpful. If you're using it for writing, summarizing, or answering questions, the right features can make it much more effective.

Here are a few things to look for in ChatGPT Chrome extensions:

• Website Compatibility - Lets you use ChatGPT naturally across sites like Gmail, Google Docs, and Notion.

• Prompt Management and Customization - Allows you to save, edit, customize, and reuse your most common prompts with fewer clicks.

• Instant Access Anywhere - Trigger ChatGPT with a shortcut or click, without needing to open a new tab.

• Context Awareness - Understands the page you're on and adjusts its responses without needing extra input.

• Flexible Input Modes - Works with text selection, full-page content, or even typed commands depending on what you need.

These features are what separate a helpful tool from one that just takes up space. Make sure the extension fits the way you already work online.

5 Best HARPA AI Alternatives

Don't let AI pass you by. Use thse ChatGPT Chrome extensions to take the power of ChatGPT to any website.

Without further ado, here's our list of the 5 best free HARPA AI alternatives:

1. AI Blaze

First up on our list of the best HARPA AI alternatives is AI Blaze.

AI Blaze is your personal AI assistant that helps you answer questions, improve your writing, summarize anything, and save time!

Features

• Answer questions with AI - Get the answer to any question you have with AI.

• Improve your writing with AI - Generate text, rewrite text, and improve your writing (paraphrase & humanize) anywhere you work with AI.

• Summarize text, articles, and PDFs - Generate summaries of text, articles, and PDFs (including ones with images) in seconds.

• Instantly use GPT-4 on any website - Use keyboard shortcuts or a dynamic sidebar to use AI prompts on any site.

2. Sider AI

Sider AI adds a floating ChatGPT sidebar to your browser that you can activate on any page. It’s commonly used to summarize articles, assist with research, and generate replies or code.

You can ask questions about what you’re reading without switching tabs. It’s popular with students, writers, and developers who need real-time support from ChatGPT while working online.

3. Merlin AI

Merlin AI lets you highlight text on any website and instantly get ChatGPT to respond to it. It works on search engines, documents, YouTube, and more.

Tools like Merlin AI are often used to create content, summarize videos, or reply to questions in forums. They're best for users who want one-click functionality and minimal setup.

4. Monica AI

Monica AI appears as a sidebar and allows you to chat with ChatGPT, summarize PDFs, translate content, and answer questions. It’s especially helpful for students and researchers who work with long documents.

Some tools like Monica AI integrates with web pages and can extract key points without needing manual input. They focus on blending ChatGPT with reading and writing tasks in the browser.

5. AIPRM

AIPRM is mainly used for SEO, marketing, and content creation tasks. It offers a library of public and private ChatGPT prompts that you can run inside the ChatGPT interface.

While it’s not a browser overlay like HARPA AI, it extends ChatGPT’s use by giving you fast access to templates for writing, planning, and optimizing content. It’s a good fit for users who spend a lot of time creating written material.

Pick an Extension That Fits Your Workflows

You don’t need a bloated AI extension to get results. The right HARPA AI alternative is the one that speeds up your daily work without getting in the way.

Try one of the ChatGPT Chrome extensions above and see which one fits how you use your browser.

To recap, our suggestion for the best HARPA AI alternative is AI Blaze. AI Blaze is your personal AI writing assistant that helps you summarize text, improve your writing, and use ChatGPT on any website.