音频转文字工具 — AI 音频转文字，快速、精准、安全的转写服务

Owl 猫头鹰 — 小红书公众号在线敏感词检测工具。我做了半年自媒体之后才发现需要规避平台敏感词，但是之前用的工具停服了，市面上其他的需要登录或者关注他们的公众号才可以使用，于是我 vibe coding 了一个敏感词检测工具，词库是根据网上找的，精简下来有 6 万多个。用了 cloudflare 的开发者穷鬼套餐，所以每人每天限制 10 次，主要是防止第三方调接口把额度耗完大家都没得用，应该对于

Parking Practice — 免费在线3D停车模拟器，练习平行泊车和倒车入库，提供实时指导和反馈

@N0V4Dev · X

I found a tool called Next AI that links AI capabilities directly with diagrams. It lets you build and edit diagrams using natural language prompts instead of clicking around the canvas manually. It's a handy way to sketch out architecture when you don't want to drag every box yourself. The project is built on TypeScript with React 19 and Next.js. It supports multiple AI providers and even includes an MCP Server. This means you can use it with the Claude Code CLI to generate diagrams from your terminal. Deployment options are flexible too. You can run the tool locally with Docker or push it to Vercel and Cloudflare Workers. It supports multi provider setups so you can pick the backend that fits your workflow. #Nextjs #AI #Diagrams #TypeScript

heliostatic · HN

A couple weeks ago we were on vacation with friends, and after the kids were asleep we played games -- mostly Qwirkle, which I had never played and am terrible at. I don't care about being terrible at games, so I made a web version to keep playing after vacation: build lines of tiles that share a color or a shape, 2-4 players (or add bots). I wanted it to be low friction, so there are no accounts. Your identity is an anonymous id in localStorage, and you can move it to another device by scanning a QR code or hitting a unique url. Start a game and text someone the link (game slugs are semi-memorable three word phrases), or "Play the computer" and you can play immediately against bots. Games are async-friendly with web push for turn notifications. The stack is one Node process on a small VM, Next.js + Socket.IO, no database. The server and the client use the same engine so moves validate optimistically, and the bots go through the same functions, so bot moves are always legal. State is

SZ Games — 提供超过 1000 款免费在线游戏的平台，涵盖动作、益智、赛车、模拟等多种类型。无需下载，直接在浏览器中畅玩，支持 PC、手机、平板等多平台设备

taylormichellebf · V2EX

做了一个免费的 Concrete Calculator，帮 DIY 用户估算混凝土用量 最近做了一个英文站：The Concrete Calculator 地址： https://the-concrete-calculator.com 它主要解决一个很具体的问题：用户在做 patio 、shed base 、walkway 、slab 这类小型混凝土项目时，不知道该 买多少混凝土、多少袋，或者该订多少 cubic yards 。 目前支持： - Concrete Slab Calculator - Concrete Pad Calculator - Concrete Yard Calculator - Concrete Bag Calculator - waste factor - cubic yards / cubic feet / cubic meters - 简单材料成本估算 做这个站的原因是我发现很多英文混凝土计算器要么广告太重，要么结果不够直观。这个版本尽量把核心计算和 单

@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

AI Image Editor — 在线 AI 修图与图片生成工具，支持抠图、消除、放大、风格化和基于提示词的图片编辑，并提供 [ChatGPT Image 2](https://ai-image-editor.io/chatgpt-image-2) 免费体验

@finexplainedhq · X

@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.

zainwah · HN

Show HN: ClinicsFlows – 2000 free patient handouts, brand or AI-generate