
LensaSim — Process Simulation for Everyone
Design and simulate chemical processes with AI assistance for education and research.
@IbehOmodolor · X
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Design and simulate chemical processes with AI assistance for education and research.
@IbehOmodolor · X

Interactive 3D visualization showing step-by-step derivation of Euler's identity e^{iπ} + 1 = 0.
@Sabrina7772 · X
I built my first app with Grok Build and had a lot of fun making it. It’s a little interactive lab for e^{iπ}+1=0. You start at 1, turn halfway around the circle, land on −1, then add 1 — and you can actually see why the equation works. Code: Any feedback is appreciated

Log workouts and meals to align your training intensity with nutrition for recovery.
@BonaniNtisane · X
Check out what I just built with Lovable!

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.

Convert code into interactive flowcharts for learning, debugging, and documentation.
@Sparsh209 · X
Hi isha! Check it out here at: Would love to hear your feedbacks

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

Create business proposals with templates, e-signatures, and analytics.
@propelio_app · X
Hey man, Building Propelio, proposals for freelancers Let’s connect!

AI-powered team composition calculator for Dispatch game missions with 95%+ success rate.
Dispatch Calculator — Steam 上 Dispatch 这个游戏的计算器助手,帮助玩家针对不同任务进行分配人员信息。

Explore interactive visualizations of mathematical curves, fractals, symmetry, and topology.
@vkuoo · X
Added more demos showcasing graph-math relationships, built with Codex.

Daily planner for ADHD with brain dump, priorities, tiny steps, and a focus timer.
@TylerPallotta1 · X

On the other hand, forgetting about how to make a living for a bit, I vibe-coded https://t.co/XBnTn5jUaK for my kids. You might like it and it's highly likely I keep riffing on it.
@babykswanson · X
On the other hand, forgetting about how to make a living for a bit, I vibe-coded for my kids. You might like it and it's highly likely I keep riffing on it.

AI-powered English learning game where kids photograph their schedule to generate vocabulary lessons through animal villagers.
@lzhgus · X
My kid goes to an English-only school in the US, but we speak Chinese at home. So I built her a tiny Animal Crossing-style island to learn English 🏝️ Snap a pic of the teacher's daily schedule → AI turns it into a lesson pack → she learns words from animal villagers, shakes apple trees, goes fishing 🎣 100% hand-written Three.js, zero assets, no backend. Try it: