Hi Product Hunt! I'm Mika. I built SAT Study Toolkit while studying for my own SAT (I ended up scoring 1520 - 800 Math, 720 Reading & Writing). The digital SAT runs in Bluebook, which has its own highlighter, answer-eliminator, notes, and calculator built in. But when I practiced on regular websites, articles, and PDFs, none of those tools were there, so test day felt different from every practice session leading up to it. So I made a free Chrome extension that puts the same tools on any website: a 3-color highlighter, strikethrough to cross out answer choices, sticky notes, a Desmos-style graphing calculator, and a countdown timer. It's completely free and doesn't need an account - install it and the tools are on the page. It's genuinely useful for anyone prepping for the digital SAT, and I'd love your feedback on what to add next. Happy to answer anything.

SAT Study Toolkit

Test-day SAT annotation tools on any website

Test-day SAT annotation tools on any website