An all-purpose AI assistant that lives in your browser sidebar
This is our editors' assessment out of 5, not an average of user ratings. The viewpoints on this page are written by AI from what we know about the product. They are not customer reviews.
According to OpenAITools.app telemetry verified on 2026-11-11, ChatYY (chromewebstore.google.com) is an AI platform indexed under AI Assistant generating 0 monthly visits with a month-over-month traffic delta of +0 (0.0%). Its primary geographic market is Global (— traffic share), and it operates on a Freemium, Free pricing model. Top competing alternatives by monthly volume include Merlin AI (1.38M visits/mo), Sider (2.64M visits/mo), Monica (4.51M visits/mo).
Saves me a ton of tabs when looking up definitions on random blogs.
Decent assistant, but the UI pops up randomly when highlighting normal text.
Quick summaries on PDF papers are legit.
Nothing revolutionary, but gets the job done.
AI-synthesized perspectives grounded in live site inspection, pricing structure, and category benchmarks — presented as editorial viewpoints rather than individual customer testimonials.
Press Ctrl+M or Cmd+M anywhere to summon the assistant, or highlight a word to get an instant explanation or translation.
Generate a concise summary and outline of a long YouTube video so you can grasp the key points in seconds.
Open a PDF inside the extension and ask questions about its contents rather than reading every page.
Turn a text prompt into an image, with workflows compared to Midjourney, Stable Diffusion and DALL·E by the developer.
Get AI answers layered into Google and Bing search results, and browse websites in real time inside the extension panel.
Write ad copy, blog articles and emails, or dig into academic topics, drawing on a rich library of preset conversation topics.
ChatYY is a browser extension that positions itself as a 'personal smart steward' — one assistant that follows you across every website. Its entry point is deliberately simple: a keyboard shortcut opens the chat panel, selecting text triggers an explanation or translation, and a library of preset topics keeps conversations moving when you are unsure what to ask.
Beyond chat, it bundles the tasks people most often leave their browser to perform. YouTube videos get a one-click summary and outline; PDFs become conversational documents; Google and Bing results gain an AI answer layer; and a drawing studio turns text prompts into images in the style of Midjourney, Stable Diffusion or DALL·E. The developer also advertises frictionless sign-in with no account barriers, and Android and iOS support beyond the desktop extension.
ChatYY is built on GPT-4 and Claude 2, according to its listing, and is offered free with optional in-app purchases. It is a small independent project published by an individual developer under the name biganwang2, with version 1.3.17 released in May 2024 and a perfect but tiny 5.0-star rating from three reviews.
Select unfamiliar terms while reading and get an immediate explanation or translation, or ask follow-up questions in the chat box.
Summarize long videos into an outline before deciding whether to watch, and draft scripts and ad copy in the same panel.
Open a research PDF in the extension and ask targeted questions across its sections instead of reading cover to cover.
Generate quick illustrations or concept art from text prompts without opening a separate image tool.
Side-by-side telemetry comparison of competing AI tools in the same primary category
| Rank | AI Tool | Monthly Visits | MoM Growth | Direct traffic share | Pricing | Head-to-Head |
|---|---|---|---|---|---|---|
| ● | ChatYY | 0 | — | — | Freemium, Free | Current |
| 1 | Merlin AI | 1.38M | +13.1% | 50% direct | Freemium | vs Merlin AI |
| 2 | Sider | 2.64M | -10.6% | 64% direct | Freemium | vs Sider |
| 3 | Monica | 4.51M | -11.3% | 55% direct | Freemium | vs Monica |
| 4 | Walles.ai - Your AI Browser Sidekick | 8.31K | -39.2% | 67% direct | Freemium | vs Walles.ai - Your AI Browser Sidekick |
| 5 | Chippy | 2.99K | +29.6% | 42% direct | Freemium | vs Chippy |
| 6 | HARPA AI | 537.46K | +99.3% | 76% direct | Freemium | vs HARPA AI |
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research
All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
Your GPT-powered sidekick for every page, PDF and video
Your GPT-powered sidekick for every page, PDF and video
ChatGPT in your browser sidebar, without switching tabs
ChatGPT in your browser sidebar, without switching tabs
One browser agent that combines every major AI model with web automation
Summarize, bookmark and write with AI right in your browser
Summarize, bookmark and write with AI right in your browser
One AI assistant across every browser, app and device — no API keys needed
One AI assistant across every browser, app and device — no API keys needed
One AI sidebar for ChatGPT, Claude and Gemini across the web
One AI sidebar for ChatGPT, Claude and Gemini across the web
Tencent's free Hunyuan-powered assistant for chat, search, documents and images
Tencent's free Hunyuan-powered assistant for chat, search, documents and images
The best frontend for AI.
A low-cost AI assistant that lives in your browser tab
A low-cost AI assistant that lives in your browser tab
