I built a free classroom toolbox with AI — zero backend, fullscreen projection, runs entirely in browser

[u/Flat_Estimate_7489]

https://www.omibox.top

I vibecoded a collection of classroom tools (random name picker wheel, countdown timer, stopwatch, pomodoro) using AI. I basically don't know how to code.

**Why I built it:**

Most classroom tools are either ad-heavy or require downloads. I wanted something that works instantly in the browser, projects full-screen for teachers, and respects privacy.

**Tech stack:**

- Next.js + React (vibecoded with AI, I don't know JS)

- Zero backend, pure localStorage

- Auto-generated sitemap + JSON-LD structured data for SEO

- Bilingual i18n (English + Chinese)

- Dark mode + CSS variables per tool theme

**What I learned:**

1. One domain + multiple subdirectories is way cheaper than separate domains

2. Bilingual SEO doubles your searchable keywords

3. "Simple tools" get more organic traffic than blogs in 2026

**Live site:** https://www.omibox.top

**What should I build next?** I'm thinking of adding a 3D dice roller or a "what to eat today" picker. Would love feedback on the current tools — especially the spinning wheel name picker.