
SUM//12
SUM//12 — Make exactly twelve.
@IagoCollarte · X
Literally the return to simple, play when you want as much as you want without being pestered games. PoC is here, AppStore soon-ish.
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SUM//12 — Make exactly twelve.
@IagoCollarte · X
Literally the return to simple, play when you want as much as you want without being pestered games. PoC is here, AppStore soon-ish.

Free, fast, and privacy-first online utilities. Growing suite of browser-native calculators, converters, and web tools with zero server tracking.
@twistertools · X
Free, fast, and privacy-first web utilities & converters. Thank you!

Every leading intelligence. One workspace.
@37cubed · X
We just had our first successful test. Inter-Model Communications. Claude planned, kimi coding, Codex debugged.

Interactive solver and visual guide for projectile motion problems.
@Quaxguy · X

Create and export Mermaid diagrams including flowcharts, ERDs, and sequence diagrams online.
ghosts_ · HN
I've been slowly adding some new free tools to Moxie Docs (partly for SEO, partly to illustrate some of our feature sets before any commitment) for some reason this mermaid editor one blew up on Google rankings so I figured I'd share in case people find it useful! We also have ADR, AGENTS.md, LLMs, and a few other free tools.

Interactive platform for learning data structures and algorithms with 300+ problems and visualizations.
u/Comfortable-Break-40 · Reddit
I spent a year building a DSA learning platform with 111 interactive visualizers. Would love feedback. A few years ago, I failed interviews at Google, Amazon, and Microsoft. The reason was simple: I could code, but I never properly understood Data Structures and Algorithms. I spent almost a year learning DSA after that. During that time, I realized I don't learn by memorizing. I learn by building. And I couldn't find a tool that taught DSA the way I wanted to learn it. So I

Produce robot motion trajectories on Axis Hub to contribute to physical AI development and earn Axis Points.
@lijiaoshou12 · X
来了来了, @axisrobotics 与币安钱包上线了,动为期约 30 天,奖池是 150 万 Axis Points,跟平时主站的积分是分开算的,两个周期各分 75 万。 活动注册: Axis 定位为 Physical AI 的数据引擎,在 Axis Hub 完成任务,实质是产出机器人运动轨迹,完成演示 → 平台审核 → 在 Base 链上签名,贡献会形成链上记录。 任务名额:每日约 20,000 个,先到先得;首日于 14:00 SGT 开放,之后多在每日 20:00 SGT 刷新 ,同时纪念徽章在完成轨迹签名的的时候可获得。 操作流程: 1.电脑上用币安钱包插件登录 Axis Hub 2.进到币安那一栏的活动页 3.做任务,每个任务最多交 5 条轨迹 4.审核过了去 Portfolio 里上链签名 关键的一点只有签过名的才算数,第二周期截止是 9 月 25 号下午 2 点,到点还没签的,就不会进最后的分配。 活动入口: @axisrobotics @KaitoAI

Practice coding with 9,130 hands-on challenges across 33 professional disciplines.
@iwtlp · X
Rather than vibe coding I'd suggest to actually learn and understand the basics which won't take long btw and then vibe code so you can atleast talk to your agent properly.

Calculate diagonals and offsets for framing, layout, and construction projects.
@ShakeelBinAbdul · X
Check out what I just built with Lovable!

Import 2D paths from Adobe Illustrator, transform them in 3D, and export as vectors without rasterizing.
@kamone · X
I built (vibe coded) my own geometry engine from scratch. It keeps path as path, and does the transformation and the silhouette splitting. You can see the code here. One single html file.

Free collection of 48 online calculators for finance, health, math, and everyday needs.
@avinashraj61815 · X
i vibe coded this week

Create and refine mathematical animations with AI assistance using Manim in your browser.
sinaatalay · HN
Manim (3Blue1Brown's animation engine) in the browser via WebGPU