HARPA AI
Browser extension that unites GPT, Claude, Gemini & more with page-aware web automation.
Data verified Oct 25, 2026
- Try it free
- Free plan
- Best for
- Marketers & SEO Specialists
About HARPA AI
HARPA AI is a Chrome/browser extension that layers a hybrid AI-plus-web-automation engine onto any web page, letting you access GPT, Claude, Gemini, DeepSeek, Perplexity and local Llama models with one shortcut. It's built for marketers, SEO specialists, writers, recruiters and developers who want to summarize videos and pages, draft emails, generate long-form articles, extract data and monitor sites without leaving the browser. What sets it apart is that it can actually read, navigate, click and extract from live pages and trigger Zapier/Make/n8n chains, while running locally and not logging your conversations.
Screenshots
Commonly Cited Strengths & Limitations
Strengths
- Supports local models and does not log conversations or actions
- GDPR compliant and privacy by design
- Compatible with many LLMs including GPT, Claude, Gemini, DeepSeek, Perplexity, and Llama
- Trusted by 500,000+ professionals with a 4.7 average review score
Limitations
- Broad feature set and older interface make it confusing for new users with a steep learning curve
- Limited to Chrome/supported desktop browsers with limited mobile and no native iOS support
- Resource-heavy and can slow down low-end computers
- Reliability and support complaints, including broken credit logic
- Free-tier usage limits create friction
- Automations break when target page layouts change, requiring selector adjustments
- Pricing plans seen as not flexible enough for individual users
Common Use Cases
- Productivity
- Marketing & SEO
- Learning
- Copywriting
- HR & Recruiting
- Product Development
Details
- Pricing Model
- Freemium
- Category
- Browser Extensions
Who is HARPA AI for?
Marketers & SEO Specialists
Segment audiences, research SEO keywords, create marketing strategies, and generate blog outlines and articles.
Copywriters
Generate any type of text content from Twitter tweets to YouTube video scripts and Amazon descriptions.
Recruiters & Job Seekers
Improve resumes, write LinkedIn replies, and generate Upwork cover letters and Fiverr Gigs.
Developers
Write and inspect code, get answers to Stackoverflow questions, and rewrite code between languages and stacks.
Frequently Asked Questions
Is HARPA AI free?
HARPA AI offers a free plan.
Does HARPA AI have an API?
Yes, HARPA AI provides an API for developers.
What does HARPA AI integrate with?
HARPA AI integrates with OpenAI GPT, Anthropic Claude, Google Gemini, DeepSeek, Perplexity, Meta Llama, Make.com, Zapier, and more.
Is HARPA AI cloud-based or self-hosted?
HARPA AI is offered as both cloud and self-hosted (hybrid) deployment.
What are the downsides of HARPA AI?
Broad feature set and older interface make it confusing for new users with a steep learning curve Also, Limited to Chrome/supported desktop browsers with limited mobile and no native iOS support
Who is HARPA AI best for?
HARPA AI is best suited for Marketers & SEO Specialists, Copywriters, Recruiters & Job Seekers.
What can I use HARPA AI for?
Common uses for HARPA AI include productivity, marketing & seo, learning, copywriting.
What is the best alternative to HARPA AI?
Our reviewed alternatives to HARPA AI are Merlin AI and NoteGPT.
How does HARPA AI compare to CastReader?
HARPA AI and CastReader are both used for browser extensions -- specifically browser extension tools. See the full side-by-side comparison for pricing and feature differences.
Key Features
- YouTube SummarizerExtracts key takeaways from long videos, seeks information, jumps to timestamps, and lets you talk to videos.
- Answer EngineProvides hallucination-free AI responses alongside Google Search with source citations and follow-ups.
- Gmail AssistantCategorizes incoming emails, summarizes long threads, and drafts contextual replies in your tone of voice.
- Writer That Mimics Your StyleCrafts emails, tweet replies, LinkedIn cover letters, and SEO-optimised articles in your writing style.
- Track Page UpdatesMonitors web pages for changes periodically and notifies you when they update.
- Ready-to-Use PromptsOver 100 page-aware automations for tasks like refining resumes, practicing languages, and fixing code.
- Write ArticlesGenerates 25,000+ word articles in 25 writing frameworks from outline to chapters.
- Quick ShortcutsKeyboard shortcuts via // to finish drafts, check grammar, rephrase, translate, search, and explain.
- Boost Your SEOPerforms AI-driven SEO audits, extracts long-tail keywords, segments audiences, and creates content calendars.
- Track Price DropsGives price drop and back-in-stock alerts for products on e-commerce sites.
- Apify Any WebsiteScrapes data, automates web search and monitoring, and triggers IFTTT chains with Make.com, Zapier, and n8n.
- Use Agents in BrowserBrings custom GPTs to the browser with access to page content, search, and automation functions.
- Midjourney WizardGenerates detailed Midjourney, DALL-E, and Leonardo AI prompts with 30+ templates and presets.
- Language WizardCorrects mistakes, explains grammar, and builds learning plans for any proficiency level and language.
- Automate Your WorkBuilds AI web automations that navigate sites, extract data, click buttons, and fill forms, controllable remotely.
Integrations
Technical Details
- Deployment
- Hybrid
- Target Market
- Both
- API
- Available
- Free Plan
- Available
Security & Compliance
Official Pricing
HARPA AI's published plans · verified Oct 25, 2026
Free
Contact Sales
Pricing shown above is sourced from HARPA AI's own published plans as of Oct 25, 2026 and can change at any time -- confirm current pricing on HARPA AI's own site before purchasing.
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HARPA AI alternatives we reviewed
Reviewed when this listing was published; open-source options are marked.
Merlin AI
Browser extension bringing multiple AI chatbots to any web page for summarizing and writing.
NoteGPT
AI summarizer for YouTube videos, articles and PDFs with note-taking.
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