
under→the→hood · a ready→made explorer
Drag boxes to visualize how a Flexbox layout engine infers constraints.
drzivil · HN
Drag boxes around and watch a layout engine infer the Flexbox (no AI)
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Drag boxes to visualize how a Flexbox layout engine infers constraints.
drzivil · HN
Drag boxes around and watch a layout engine infer the Flexbox (no AI)

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

Eight free browser-based tools including JSON formatter, password generator, and color picker.
@Supportpintutec · X
Just launched QuickTools — 8 free online tools 🛠️ Word Counter • JSON Formatter • Password Generator • Color Picker 100% browser-based, no signup 🔗 #SideProject #WebDev #FreeTools #BuildInPublic

Track user events and understand behavior to ship products faster.
@kitbasedev · X
We just launched, check us out at

Create polished mobile app demos and mockups directly on your phone.
@startappdev · X
I'm working on a mockup and demo creation tool straight on your phone so you can build in public easily.

Create visual boards that group ideas by color and structure them with branches, then share without login.
@shiftibis · X
Indie project 📝 ReBox: visual boards where color = group and branches = a file tree — both at once. Share links open without login (anyone with the link can edit). A Claude connector builds boards for you. English UI just shipped. #buildinpublic

Draw and diagram online with instant collaboration, no sign-up required.
@rishabh21g · X
The whiteboard that just lets you draw


Open-source design tool for creating graphics in the browser.
@akinkunmi · X
He trash-talked me and my amazing project ( unprovoked while all his projects are vibe-coded slop. That's why I named him King of Slop.

3D container packing tool with automatic layout algorithms and cargo visualization.
wen20 · V2EX
外贸人使用的工具:一个 3D 装箱工具分享 外贸集装箱 装货 3D 可视化工具 工具地址: https://waimao.himyou.com/container 工具特点: - 默认包含 20 尺标准柜、20 尺高柜、40 尺标准柜、40 尺高柜、45 尺标准柜、45 尺高柜,可自定义集装箱大小 - 盒体和圆柱体货物布局 - 多种自动装箱算法,自动计算装箱利用率 - 导入、导出 货物列表 - 支持底部托盘

Research Shopify App Store trends, track competitors, and discover keyword opportunities.
@yuangwya · X
Create polished App Store and Google Play screenshots in your browser.
@SimonKroisi · X