
FreetCode — Free Algorithm Interview Prep
Practice algorithm interview problems with solutions and interactive visualizers.
@Galliard232634 · X
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Practice algorithm interview problems with solutions and interactive visualizers.
@Galliard232634 · X
Come study with me on

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

Turn the live Bitcoin network into generative music and visual landscapes.
@SpotKolours · X
I made this little experience. I'm not a developer or musician, just a chill ,creative ,South African dude that had an idea. Proof of Sound —Hear and experience the Bitcoin network live: #Bitcoin #ProofOfSound #lofi made with @claude and @OpenAI

@sridharfyi https://t.co/EsNHxfUqXO
@SocialWithAI · X

Web3 platform with a fee-free crypto wallet, games, and gamified economy.
@chaos_mln · X

Share files and text directly between browsers without server storage or login.
@bytestreak · X
Building a frictionless, forever free file sharing utility tool. Check it out here:


Roll 3D animated dice (D4-D20) for tabletop games instantly.
Nalife520 · V2EX
最近用 Codex 做了一个 3D 骰子! 最近做了一个很小的网页工具:3D 骰子。 做完后有点纠结: 这种小工具到底应该保持极简,还是把常见功能都补上? 抛骰子: https://wheelpage.com/zh/dice-roller/ Dice Roller: https://wheelpage.com/dice-roller/ 现在功能很简单:打开页面,点一下,骰子滚动,然后给出结果。 一开始觉得骰子就是 1 到 6 的随机数,应该很好做。 但做的时候发现,如果只是直接显示数字,又不太像“掷骰子”;做成 3D 动画,又担心有点多余。 现在倾向于先保持简单,打开就能用,不加太多设置。 顺便也做了一个抛硬币页面: https://wheelpage.com/zh/coin-flip/ 它和骰子类似,都是临时做随机决定的小工具。

Submit your startup idea to get validated by 34+ AI specialist agents.
@marcus_b1973 · X
Honest AI panel validates your idea before you build it.

Create and customize interactive widgets with AI and embed them on any website.
@fugteapp · X
which empowers nontechnical users to be able to customize code generated by AI or developer, and be able to share and embed it to the website they are already using

Transform photos into 90s Y2K horror, retro horror, and cinematic horror visuals.
aighostface.org — Ghostface AI 生成器,将照片转换为 90 年代恐怖风格

Chat with an AI about crypto markets, wallets, tokens, news, and airdrops with live data charts.
@FlateAI · X
We've just launched!