MathFill: Equation Editor for Slides™ & Docs™

MathFill is an equation editor for Google Slides™ and Google Docs™. Write an equation in the sidebar, insert it as a crisp image, and change it later in a click.

Math without learning LaTeX: type it the way you would say it (x^2, a/b, sqrt, pi, alpha, <=, sum, int) and the equation builds as you type. Buttons add fractions, roots, sums, integrals, matrices, Greek letters and symbols. LaTeX works too.
A preview of exactly what goes in, in the size and color you choose, with mistakes explained before anything is inserted.
Crisp on every slide: drawn at four times screen resolution, in the middle of the slide or of the selected box, or at the cursor in a document.
Edit it later: select an equation MathFill inserted, choose Edit selected equation, change it and Update. It keeps its place and its size.
Narrow access: MathFill only reaches the file you use it in. Your equations are written and drawn in your browser.

Plans

Free: 10 equations or edits in total per Google account. Previewing is always free.
MathFill: $9 once per Google account for unlimited equations and edits. No subscription. Refunds within 14 days. See the terms.

Install it from the Google Workspace™ Marketplace, then open it from Extensions > MathFill in any presentation or document.

Add-on will not open or uses the wrong Google account?

Google Slides™ and Google Docs™ are trademarks of Google LLC. MathFill is not affiliated with Google. The editor is MathLive (MIT License); equations are drawn by MathJax (Apache License 2.0) with the MathJax TeX fonts (SIL Open Font License 1.1).