Guides & how-tos
Short, practical walkthroughs that go with our free browser tools — no fluff, no sign-up. Each one explains the "why" as well as the "how", so you leave knowing a little more than when you arrived.
How to save any webpage as a PDF
Four reliable ways to turn a live web page — including tweets, threads and articles — into a clean PDF you can keep, cite or share.
Read the guide →PDF vs screenshot: which should you use?
Screenshots are fast; PDFs are complete, searchable and citable. A practical rule of thumb for picking the right one every time.
Read the guide →How to cite a website (APA & MLA)
Worked citation examples, the no-author and no-date fallbacks, and why to save a dated copy of every page you cite.
Read the guide →Find words for Scrabble & Words With Friends
How word finders actually work, how to use blank tiles and wildcards, and the high-value words worth memorising to lift your score.
Read the guide →Two- and three-letter Scrabble words
The short words that win games: hook-friendly twos, the Q, Z, X and J threes, and how to actually use them on the board.
Read the guide →How to unscramble letters faster
Train your brain to see words in jumbled letters — six techniques plus a five-minute daily drill that makes anagrams click.
Read the guide →How big is a googol? Naming huge numbers
Million, billion, trillion… then what? A plain-English tour of how gigantic numbers get their names, up to a googol and far beyond.
Read the guide →Googolplex vs infinity
Why even a number too big to write down using every atom in the universe is still exactly as far from infinity as the number 1.
Read the guide →How to create a strong password
Why length beats complexity, how to build a passphrase that sticks, and the one rule that matters most.
Read the guide →What is two-factor authentication?
SMS codes, authenticator apps, push prompts, hardware keys and passkeys — ranked in plain English, plus the smart order to turn them on.
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