# HARPA AI

> AI browser assistant for web page summarization, email writing, and automation

HARPA AI is a Chrome extension that integrates AI models directly into your browser sidebar to interact with web pages. It can summarize YouTube videos with timestamped chapters, extract key insights from articles, and compose context-aware email replies. Users can switch between models like GPT-4, Claude, and Gemini, or connect their own API keys.

Website: https://chromewebstore.google.com/detail/eanggfilgoajaocelnaflolkadkeghjp

## What it is for

- Summarize long YouTube videos into timestamped chapters and outlines
- Extract key insights and summaries from long-form articles or web pages
- Draft context-aware email replies and rewrite text directly inside webmail clients
- Generate structured outlines from videos to turn into flowcharts or mind maps

## Features

- Browser sidebar interface accessible via keyboard shortcuts or slash commands
- YouTube transcript extraction and timestamped chapter generation
- One-click webpage summaries and key insight breakdowns
- Contextual email reply assistant with style and length adjustments
- Support for multiple LLMs including GPT-4, Claude, and Gemini
- BYOK support to connect personal OpenAI API keys

## Pricing

Freemium. Free tier available; paid Pro plans for extended features.

## Details

- Type: Browser extension
- Category: [AI](https://xiry.app/topics/ai.md)
- Open source: no
- Platforms: Browser extension
- For: Knowledge workers, students, and researchers who want AI assistance directly inside the browser.
- Alternative to: Sider AI, Merlin AI, MaxAI.me
- Tags: chrome extension, ai assistant, youtube summarizer, browser automation, productivity

## Why it was saved

- [@realrileybrown, 16 September 2023](https://www.instagram.com/reel/CxRCeHxrC_e/): It allows you to parse multi-hour YouTube videos into timestamped chapter summaries, extract key insights from articles, and compose tailored email replies directly from the browser sidebar using models like GPT-4, Claude, or Google Bard.
- [@realrileybrown, 27 September 2023](https://www.instagram.com/reel/CxtJCJaRapj/): Quickly parses YouTube videos and extracts a hierarchical outline with bullet points directly in your browser.

## Related

- [Autotab](https://xiry.app/resources/autotab): AI computer-use agent that learns and automates browser tasks by demonstration (Web app, Freemium)
- [ChatGPT](https://xiry.app/resources/chatgpt): Conversational AI assistant for writing, research, reasoning, and coding (Web app, Freemium)
- [a16z Apps Unwrapped](https://xiry.app/resources/a16z-apps-unwrapped): Categorized directory of recommended consumer and professional AI applications. (List, Free)
- [Claude](https://xiry.app/resources/claude): Anthropic's conversational AI assistant for analysis, writing, and coding (Web app, Freemium)
- [Perplexity](https://xiry.app/resources/perplexity): AI-powered search engine providing conversational answers with cited sources. (Web app, Freemium)
- [TinyFish on Monid](https://xiry.app/resources/tinyfish-on-monid): Free search and fetch endpoints plus persistent logins for AI agents. (Web app, Freemium)

Updated 3 October 2026. Page: https://xiry.app/resources/harpa-ai

Make your own library: Xiry takes your saved reels, tweets, Reddit bookmarks and Watch Later videos, makes them searchable and pulls the useful stuff out, like this library. It's invite-only for now; join the waitlist at https://xiry.app/#waitlist.