Select any word or phrase on any page. Professor gives you instant, context-aware AI explanations — finance, law, medicine, technology, and more — then turns what you learn into flashcards that stick.
10 free lookups per day · No account required · Pro is $6/mo billed yearly
The share of net income that converts into actual cash. A 94% rate is excellent — it means nearly all reported earnings are backed by real cash generation.
Professor detects the domain automatically — a legal term in a contract gets a different explanation than the same word in a medical journal.
Every detail is designed to stay out of your way until you need it.
Select text and the explanation appears in under a second — no copying, no new tabs, no context switching.
Finance, law, medicine, or tech — Professor detects the context and tailors the explanation to the right field.
No account required. No text is stored. Selected text is sent only to process your explanation, then immediately discarded.
Any webpage — news, research, SEC filings, contracts, medical journals, technical docs. Even PDFs in Chrome.
Trigger with a shortcut. Drag the popup anywhere. Minimize to a pill and restore instantly.
Save any explanation as a flashcard or attach personal notes. Build a knowledge library as you read.
Highlight a word, phrase, or sentence on any webpage. A small icon appears next to your selection.
Click the icon or press the keyboard shortcut. Professor identifies the domain and generates the explanation.
The explanation appears inline — no new tab, no interruption. Close it and keep reading.
Professor is built for professionals who work with sensitive documents. Privacy is not a toggle — it's the architecture.
The free tier is genuinely useful — 10 lookups per day, no account required. Pro removes all limits.
No account. No credit card.
Billed monthly. Cancel anytime.
$72/year — save $24 vs monthly.
Custom pricing, SSO, audit logs, and policy controls for finance, law, and healthcare teams.
Contact usFree to install. Works instantly. No account required.
Add to Chrome — free