
All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
ExplainThis records 1,463 monthly visits with -54% month-over-month growth and Free pricing. HLAI — Instant AI Text Explainer records 0 monthly visits with — growth and Free pricing.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | explainthis.ai | chromewebstore.google.com |
| Pricing Model | Free | Free |
| Monthly Visits | 1.46K (1,463) | 0 (0) |
| MoM Traffic Delta | -1.72K (-54%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (100%) | 🌐 Global (—) |
| Direct Visits / mo | 428 | 0 |
| User Rating | 3.9 | 4.2 |
| Supported Platforms | Website | Browser Extension |
Summarise and explain any page or video as you browse
Turn long articles and pages into a readable summary so you can decide what deserves a full read.
Get the key takeaways from YouTube videos without sitting through the entire runtime.
Primarily a Chrome extension, so it sits alongside whatever you are already browsing rather than forcing a separate app.
Built for startup knowledge workers who need context fast across marketing, sales and product research.

Highlight any text and get an AI explanation in under a second
Hold CTRL or CMD and select any text to receive an AI explanation in a popup, without switching tabs or leaving the page.
Explanations are generated quickly — the developer advertises response times of less than one second — so lookups never interrupt your reading flow.
Answers are stored automatically, giving you a reusable glossary of terms and passages you have already had explained.
Click the HLAI icon in the browser toolbar to open the extension popup directly, as an alternative to the highlight gesture.

All-in-one AI assistant across web, browser, desktop and mobile
All-in-one AI assistant across web, browser, desktop and mobile
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research

One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One AI assistant that plugs ChatGPT, Claude and Gemini into every tab
One-click AI assistant for browsing, writing and research
One-click AI assistant for browsing, writing and research
Highlight the web, learn in public, and build your AI clone
Highlight the web, learn in public, and build your AI clone
One browser agent that combines every major AI model with web automation

Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Free / Open-sourceSummarize YouTube, Google, and any page with AI — free in your browser
Summarize, bookmark and write with AI right in your browser
Summarize, bookmark and write with AI right in your browser

Summarize any YouTube video into key ideas and timestamped notes in seconds.
Summarize any YouTube video into key ideas and timestamped notes in seconds.
AI browser extension that reads quiz questions and answers them with explanations
AI browser extension that reads quiz questions and answers them with explanations

Turn long articles, videos and PDFs into structured summaries you can actually search.
Turn long articles, videos and PDFs into structured summaries you can actually search.