Four projector tools. No Wi-Fi, no ads.

Every teacher has a tab of free websites for the projector: a name wheel, a group generator, a timer, a noise meter. Then the school Wi-Fi drops, or an ad plays in front of thirty kids, or the site wants a login. Classroom is all four in one file that runs on your computer, offline, with your class lists already in it.

WHAT IT DOES

Name picker: a big spinning wheel or a card flip. No repeats until everyone has had a turn, absent students left out for the day, and a Not here, pick again button
Group maker: groups by size or by number, keep-apart and keep-together pairs, spread a label evenly (like strong readers), lock a group and reshuffle the rest, drag names between groups, print the list
Timer: a countdown the back row can read, with quick start times, type any time, a ring that drains and turns yellow then red, a gentle chime, a stopwatch, and a mini timer that floats over the other tools
Noise meter: a jar of bubbles that rises with the room, a line you set for too loud, quiet points every 10 seconds, and a class goal with a reward you name. It only listens for the level; nothing is recorded or saved
Projector mode on every tool (press P): full screen, big type, nothing else on the screen
Keyboard friendly: Space does the main thing on every tool, 1 to 4 switch tools
As many classes as you teach, each with its own list, rounds, pairs and points
Backup and restore, so your lists move to a new laptop

Who it's for

Teachers, teaching assistants, tutors, coaches and anyone who runs a room. Elementary through high school.

What you get

Classroom (one .html file, runs in your browser, offline)
A 2-page quick-start guide

Good to know

One file. No install, no account, no subscription, no internet needed after download.
Your data stays on your computer. Export a backup any time; import it on another machine.
Built for a computer screen: Windows or Mac, in Chrome, Edge, Safari or Firefox.
Instant download.

What's inside the download

Classroom.html
Quick-Start-Guide.pdf

Made by Matthew Busel, a one-person studio in Tuckahoe, NY. About me. Questions: support@tensorust.com.

1M+ X impressions in 4 days, run by AI agents · 8 iOS apps live on the App Store · 519 GitHub stars · 124 tools in the shop · O'BLOCK on Steam, free Oct 20

Home, family and school

Classroom

Name: Classroom
Brand: Tensorust
SKU: classroom-teacher-toolkit
Price: 6.00 USD
Availability: InStock

teacher toolkit for the projector: name picker wheel, random group maker, big countdown timer and a noise meter, offline with no ads

The four tools teachers put on the projector every day, in one file that works when the school Wi-Fi does not and never shows an ad to the class. A spinning name wheel that gives everyone a turn before anyone goes twice, a group maker that keeps the right kids apart, a timer you can read from the back row, and a noise meter that turns a quiet room into points.

Works or I fix it. If a file doesn't open or work as described, email support@tensorust.com within 30 days and I fix it or send a working copy. All sales are final, so check the screenshots or ask first.

Updated: Oct 2026
File: ZIP, 454 KB: 1 HTML app, 1 PDF
Who it's for: Teachers, teaching assistants, tutors, coaches and anyone who runs a room. Elementary through high school.

One-time price in US dollars, checkout by Stripe. After paying you land on a page with your download link. Each link works for 15 minutes, and reopening that page makes fresh ones.