Tooltips.ai

Ever been deep into an article or a dense PDF, hit an unfamiliar word, and lost your train of thought flipping between tabs to look it up? Tooltips.ai is an AI-augmented reading extension that keeps you in the flow, using ChatGPT to explain any highlighted word or phrase without you ever leaving the page.

It works seamlessly on the web and inside PDFs, offering simple, clear explanations for whatever you highlight, plus answers to the natural follow-up questions you might have. With support for over 100 languages, it's a genuinely useful upgrade for students, researchers, and language learners alike.

The bigger payoff: you read deeper and faster. Instead of getting stuck on jargon or half-understanding passages, Tooltips.ai gives you just enough context to keep going—so complex reading finally feels manageable.