
StitchWink — Cross Stitch Pattern Maker
Upload an image to generate a cross-stitch pattern with standard DMC thread colors.
dumbfoundded · HN
Stitchwink – Cross-stitch pattern making with AI
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Upload an image to generate a cross-stitch pattern with standard DMC thread colors.
dumbfoundded · HN
Stitchwink – Cross-stitch pattern making with AI

Draw or import bead patterns, automatically count beads, and export PDFs.
letsgogogo · V2EX
做了一个串珠子的工具,支持拼豆。 我做了一个在线串珠图案工具 Loomet 。 可以画图案、自动算珠子数量、导出 PDF 。也支持拼豆模式。 https://loomet.app

Play a free online tile-pattern game with friends or solo against the computer.
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

Generate seamless patterns and textures from prompts or images, then export them.
Seamless Canvas — AI 无缝纹理生成器,通过文字描述或上传图像生成可平铺纹理 - [更多介绍](https://seamlesscanvas.com)

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.

AI Skill Studio: Free online Claude Code skills (SKILL.md) and Cursor rules (.mdc) generator. Configure prompt steering, agent rulebooks, and CLAUDE.md with 100% offline privacy.
@m_saad_labs · X

Upload images and add customizable grids for drawing practice, then export in multiple formats.
ShawnHacks · V2EX
做了一个免费的在线 Grid Maker,给画画/临摹用的 最近做了个小工具:[Art Grid Maker]( https://artgridmaker.com/) 主要是给画画、临摹的时候给参考图片加网格。上传图片后可以调整行列数、颜色、线宽、透明度等,然后导出 PNG / JPG / PDF 。 图片处理都在浏览器本地完成,不会上传服务器。 除了 Grid Maker ,还顺手做了一些绘画相关的小工具,比如比例计算、可打印网格、透视网格、Worksheet Maker 等。 目前还在持续完善中,欢迎大家体验,有任何建议或者发现 bug 都可以告诉我 🙏 [https://artgridmaker.com/]( https://artgridmaker.com/)

Fast, free, and print-ready puzzle generator for teachers and KDP publishers. Create custom word searches, cryptograms, word scrambles, and fill-in puzzles in seconds.
@EthanGinsberg · X
Free puzzles and resources for teachers

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

Compose rhythms and melodies with a radial step sequencer.
@EasternDaylight · X
One year ago I launched my first application - a radial music sequencer - vibe coded and deployed with help from Grok and Gemini. It's useful for exploring rhythms, and I like to use it for exposing hooks in well known songs. Happy to see it's still in use steadily at about 150 times a day, and 140k times since launch - I've renewed the domain and thanks to your encouragement will continue to work on it.

Free browser tools for formatting code, minifying files, testing regex patterns, and merging PDFs.
@546_md · X
I recently launched CodeToolsStudio, a collection of privacy-first developer tools for things like JSON, JWT, Regex, Base64, timestamps and more. you can test it here: 🌐 I'd genuinely appreciate feedback on what you'd improve or add to it

Write once, export to notebooks, slides, PDFs, PPTX, DOCX, or canvas.
@mr_wickedhacks · X
Write the doc once → get a notebook, slide deck, canvas, or resume from the same source. No rewriting for every format.