MathXRay

X-ray vision for formulas on any webpage

Stuck on a scary equation in a paper or textbook? MathXRay turns the formula you select into a clear, friendly explanation — symbol by symbol.

Select a formula or LaTeX snippet, analyze it, and read whole-formula meaning, numbered steps, and symbol tooltips — on arXiv, PDF viewers, course pages, and blogs.

Support

Features

What you get

Whole-formula meaning

See what the entire expression is doing in plain language — not just isolated symbols.

Step-by-step reading

Follow numbered steps so long formulas (attention, loss, layers) unfold in order.

Symbol dictionary

Hover tooltips and symbol cards explain W, b, Q, K, V, softmax, and more from a built-in math dictionary.

Study chapters

Get suggested chapters from mdooai to go deeper after you understand the formula.

Works where you read

arXiv, PDF viewers, course pages, blogs
Select text → analyze → done
English, Korean, and Japanese — switch in extension settings

Guide

How to use

Three ways to analyze a formula:

Select a formula or LaTeX snippet on the page
Right-click → Analyze selected formula (or Ctrl+Shift+X / Cmd+Shift+X on Mac)
Read the modal: selected formula on top, meaning & steps below
Prefer the toolbar? Open the MathXRay popup to set language and options

Users

Perfect for

Students reading STEM coursework
Researchers parsing ML, stats, or physics papers
Self-learners who want formulas explained, not guessed
Anyone who reads equations online and wants clarity fast

Privacy

Privacy & control

Runs only when you ask to analyze a selection
No background browsing of your tabs
Preferences stored locally (language and extension options only)
Page HTML is not uploaded; analysis uses your selection on the page

Install MathXRay and stop guessing what that equation meant.

URL

Chrome Web Store URLs

Store listing

Visitors are redirected by country (KR/JP) or browser language to /mathxray/en, /ko, or /ja.

Homepage URL: https://www.eajiai.com/mathxray/
Support URL: https://www.eajiai.com/mathxray/support
Privacy policy URL: https://www.eajiai.com/mathxray/privacy