I've been building free browser tools and recently started making games too. They're all single HTML files — no frameworks, no npm, no backend. Here are the ones I'm most proud of:
1. Which AI Model Are You?
7 questions to find out if you're GPT-4o, Claude, Gemini, Llama, Mistral, or GPT-4o Mini. Each result has its own color scheme, traits, and personality description. Shareable result card.
This one's been getting the most engagement so far — people love finding out which model matches their personality.
2. MASH Game
Remember MASH from school? Mansion, Apartment, Shack, or House. Pick your options for partner, job, city, car, and number of kids — then watch the elimination happen live.
The twist: if you have an OpenAI or Gemini API key, it'll write a funny AI-generated story about your predicted future.
3. AI Mind Reader (20 Questions)
Think of anything — a person, animal, place, object, or fictional character. The AI asks 20 yes/no questions and tries to guess what you're thinking. It's like Akinator but powered by GPT or Gemini.
Needs an API key (OpenAI or Gemini). Each game costs about $0.01.
4. Spacebar Speed Test
How fast can you press the spacebar? Four modes: 1 second, 5 seconds, 10 seconds, 30 seconds. Challenge friends with a shareable link that includes your score.
This was inspired by the TikTok spacebar challenge. Average is about 6-7 SPS.
5. Human or AI?
10 rounds of text — some written by humans, some by AI. Can you tell the difference? It's harder than you think.
6. Daily Math Puzzle
Like Wordle but for math. Combine 6 numbers using +, -, x, / to reach the target. New puzzle every day.
All of these run in your browser. No downloads, no accounts, no tracking. View source on any of them — they're vanilla HTML/CSS/JS.
I also have a bunch of free AI tools (text rewriter, translator, summarizer, agent builder) if you're into that.
What should I build next?
Top comments (1)
Would be great if you can share your repo. Wish to learn how you created some of those quiz