3 items
Enter math visually in MITx with Psetter, an intuitive math editor. Psetter is a visual math editor for MITx that lets you build mathematical expressions directly in compatible answer fields instead of typing MITx syntax by hand. Create fractions, roots, exponents, functions, symbols, and complex expressions visually. Psetter converts what you build into the input format MITx expects, making it faster and easier to enter math while keeping your focus on the problem instead of the syntax. Psetter runs locally in your browser. Math parsing and conversion happen on your device, and answer content is not sent to a Psetter server. Psetter is an independent project by Pedro Villafranco and is not affiliated with, endorsed by, or sponsored by MIT or MITx. Support: psetter@villafran.co Privacy: https://psetter.villafran.co/privacy
Aug 21, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.