About
About Teach Zone
Teach Zone is a learning platform built for classrooms: instructors invite their learners, learners work through hands-on courses, and everyone can see progress. Alongside it we run a free public playground of tools and games.
Organizations and instructors issue invitation codes; learners join a class that is already set up for them.
Terminal emulator, JSON validator, string and case converters, hash calculator and color converter — all running client-side.
Snake, Memory Match and Reaction Timer, built with plain canvas and DOM.
Strict Content-Security-Policy, no inline scripts, no third-party requests, and a public security contact.
Full keyboard navigation, ARIA labeling and better color contrast across every page and game.
Let institutions bring their own identity provider instead of managing separate passwords.
A lightweight space for reader-submitted tips and short code snippets alongside the technical articles.
Platform
Why Teach Zone
Curated paths for web, backend and DevOps. Start from zero and build toward production-ready skills.
Every lesson ends with a lab in the browser, so concepts turn into working things.
Instructors see progress, invite learners and get a clear picture of who needs help.
A free playground of tools and games that make small concepts stick.
Principles
Engineering principles
Zero dependencies
No frameworks and no build step on the public site. Native HTML, CSS and JavaScript only — smaller payloads, faster loads.
Accessible by default
Semantic markup, keyboard navigation and ARIA where it matters. Works without a mouse.
Privacy-friendly
No third-party analytics or tracking scripts. The playground keeps its state in your browser.
Local-first state
Scores and preferences live in localStorage. Nothing from the playground leaves the browser.
Fast by default
No blocking scripts, no layout thrash, GPU-friendly canvas rendering.
Secure by default
A strict Content-Security-Policy, no inline scripts and no third-party requests.
FAQ
Frequently asked questions
Who can get an account?
Accounts are issued through organizations and instructors. If your school, bootcamp or company uses Teach Zone, they will send you an invitation code.
How do I get an invitation?
Ask your instructor or administrator. If you represent an organization and want to bring a class to Teach Zone, contact us.
Is the playground really free?
Yes. The tools and games are open to everyone and need no account. They run entirely in your browser.
I forgot my password.
Use the reset link on your organization's sign-in page, or ask your administrator to send you a new invitation.
How do you handle my data?
Read our privacy policy. In short: we collect only what is needed to run your classes, and we do not sell personal data.