The full gallery
Tech stack
18 projects
Daily logic puzzle where you deduce codes in 8 guesses with feedback, playable solo or in online multiplayer.
Dinjure · HN
Dinjure – Bulls and Cows in one HTML file, with a fallible AI
Type a math problem and get step-by-step walkthroughs with explanations.
u/peterparkermarker · Reddit
MathIQ I built mathiq.io with Claude Code because I wanted a way for students struggling with college level maths to see how the problems can be broken down and not as intimidating. Each walkthrough goes from beginning to end and each step has a "why and how?" feature. Anon users get 1 free daily walkthrough powered by Haiku 4.5. Signed in users get 3 free daily walkthroughts powered by Haiku 4.5. Plus users get 5 Opus 4.6 walkthroughs plus 20 Sonnet 4.6. Pro users get 8 Opus/30
Collection of 40 free online calculators for money, dates, cars, and percentages with no sign-up required.
@MyMicroTools · X
Building MyMicroTools 🧮 A growing collection of free calculators and useful tools for everyday life. 💰 Finance 📊 Math 🛠️ Everyday utilities No signup. No paywall. Just useful tools. 🌐
Free calculators for DIY home projects like woodworking, decks, concrete, and drywall.
u/CaboWabo55 · Reddit
Built a DIY calculator site in a weekend — betting on "boring tools" over content After my last project (an AI debate platform) got rejected by AdSense for "low value content," I went the opposite direction: no content treadmill, no AI features, no backend. Just genuinely useful calculators. studandslab.com — 10 free calculators for woodworking and home projects (board feet, stair stringers, concrete, drywall). Everything runs client-side, so hosting is free and every visitor costs me $0.
Instant access to 305+ calculators for money, health, math, and everyday conversions.
@calculate_at · X
Free collection of 48 online calculators for finance, health, math, and everyday needs.
@avinashraj61815 · X
i vibe coded this week
All-in-one app for nutrition, fitness, and focus management with an AI copilot, available at $1/mo.
@alextechhub · X
Built this app to replace subscriptions I paid, and I think it could get some traction
No-code platform for data analysis and document extraction.
@0xLingjieKong · X
Hey @Sarakhan49309, I'm currently building an agent specialized in data analysis that reduces hallucinations. would love to connect!
Press a mysterious button and discover what happens.
@saralsachan · X
Waste you time on weird websites
Five minutes, no calculator. Nineteen questions across four kinds of thinking. Same questions as everyone today — find out what's left when the tools are gone.
@underlined2ce · X
Learn math and physics through cinematic missions and interactive physics simulations.
@electricdrago10 · X
Convert handwritten math notes to editable LaTeX and PDFs.
u/Worth_Difference_282 · Reddit
Handwritten notes into latex + study tools - looking for feedback Hey everyone, I'm a mathematics student at university, and over the past few months I've been building something called LatexNotes in my free time. The original problem was pretty simple, I like taking paper handwritten maths notes, but whenever I wanted to turn them into proper LaTeX afterwards or to get AI to mark answers, it was a pain. I kept needing to switch between my university’s content platform, then to Chatgpt to e
