
zkGolf: golf zero-knowledge circuits, verified in Lean
Compete to write the cheapest zero-knowledge circuits and verify correctness in Lean.
rot256
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Compete to write the cheapest zero-knowledge circuits and verify correctness in Lean.
rot256

Instantly share files and text across devices (Mac, PC, iOS, Android, Smart TVs) via your browser, no signup needed.
@WackyCrocoGator · X
This one doesn’t require any signup or payment. Just load and multiple device by opening the site on them and connect them for an easy way to drop text and file to each other.

Play a browser game instantly with no wallet or setup.
@NormiePepeNFT · X
Want to have some fun? 🐸🎮 Try the NOPE game — built entirely with Claude Code. No wallet connection required. No complicated setup. Just jump in and play. Have some fun. Be NOPE. 💚

Design electronic circuits and PCBs in your browser with KiCad, no installation required.
ViktorEE · HN
KiCad, a PCB EDA suite is now working in a browser, you can try it at the link, there's a demo project or you can bring your own. Firefox is best, Chrome is good, Safari is "working". We’re Emergence Engineering, a dev shop from Hungary, mostly working with rich text editors, CRDTs. PCBJam started as my (Viktor, CTO, ex-electrical engineer) hobby project but as time went on I put more and more energy into it, and a product started shaping up in my head, in the last few months we’ve started to focus on this project a bit more, and this is the first MVP~ish result. This project is a ton of fun, ton of learning, ton of improvements over improvements: - I thought there must be ways to emulate the PCB canvas OpenGL code on the web. And yes, there are a lot of ways, all of them very buggy. Turns out it’s faster to just write WebGL code that works with KiCad’s Graphics Abstraction Layer if you add the right intermediate debugging steps. I (with Claude) implemented the features and compared

Collection of 125+ free calculators for finance, health, legal, real estate, and travel—no signup required.
@Arafat3599651 · X
Just launched 🧮 125+ free calculators — mortgage, BMI, debt payoff, compound interest, calories & more. No signup. No ads. Everything runs in your browser instantly. #buildinpublic #webdev #react

Generate professional documentation for startups without coding or complex setup.
@hannah24_app · X

Generate AI images from text prompts without logging in, with free credits every 12 hours.
Nano Banana 2 AI — AI 图像生成工具(支持角色一致性保持与多步工作流,兼顾速度与质量),适合快速产出专业视觉内容

Create richly formatted posts and publish them instantly to the web with a single click.
@masafumiohta · X
I’ve been using Windows as my daily use lately despite I have been using Mac/Linux for a long time, but I keep running into all sorts of issues, so I’ve been fixing them vibe-coding with Claude. I’m gonna dump all that stuff on This blog is fully automated with Claude Code, from coding all the way to reporting. It’s nothing special—anyone could do it—but it’s actually pretty fun once you try it. The only annoyed is that it burns through tokens like crazy. Most of the tips are pretty interesting, so I hope you find them useful.

Apply curated design palettes and typography to your AI-generated website.
@Hamzadevio · X
just shipped. my goal is to help founders add taste to their vibe coded ugly looking apps. (especially the purple gradient, can't see it no more..)

Edit videos by describing what you want. No timelines. No complexity.
@uxayaan · X
Building Cliponaut - ChatGPT for video editing

Ask a yes/no question and get an AI-powered tarot card reading for instant guidance.
Yes/No 塔罗 AI — 融合 AI 技术与塔罗洞见,快速获得"是"与"否"解答

Calculator for Obsessed Trace game data and calculations
Obsessed Trace Calculator — Stream 游戏 Obsessed Trace 工具网站