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29 projects



为建筑、3D打印和材料估算提供免费在线计算器。
@rabeekit · X
🚀 Just launched RabeeKit! Free online calculators & generators: 🧱 Construction 🖨️ 3D Printing 👶 Name Generator 📄 Fake Data 🎨 Paint Calculator Fast. Free. No signup. 🌐 Feedback is welcome! 🚀 #buildinpublic #indiehackers #webdev

Free, accurate online calculators and practical guides for finance, math, health, construction, engineering, and everyday life.
@CoreToolLaxl · X
I'm building CoreToolLab, a free utility site with calculators for finance, health, education and everyday decisions. We're trying to make each tool genuinely useful rather than just another basic calculator.

Tatto.dev 将故事创意转化为 3D 打印的盲文触感页面,适合盲童和低视力儿童。
@fgiuliani87 · X
What if every blind or visually impaired child could create—and touch—their own story? ✨ Type an idea. We turn it into real Braille and raised illustrations, ready to 3D-print at home. Built with @lovable to make imagination accessible to everyone. 💜

使用Apexa Pro的100+免费计算器进行数学、化学、物理和财务计算,无需注册。
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other

Anime Fighting Simulator游戏数据和计算的计算器工具。
Anime Fighting Simulator Calculator — Roblox Anime Fighting Simulator游戏工具

FreeFixo:125+ 免费计算器,涵盖金融、健康、法律、房产和旅游,无需注册。
@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

Rust游戏玩家用的计算器和规划工具,适合游戏进程中快速查阅。
Rust Calculator — Stream 游戏 Rust 工具网站

免费在线计算器和转换工具,用于金融、健康和教育,无需注册。
@Toolvica · X

用AI分析敏感数据,通过客户端加密实现端到端保护。
@JackiePeters · X

用品种特异性公式计算狗的真实年龄(支持AKC、UC Davis等)。
leolee829111 · V2EX
做了个狗龄计算器,才发现"1 狗年 = 7 人年"是错的 家里养了只金毛,一直按"狗 1 岁 = 人 7 岁"算,后来查资料发现这个公式根本不科学——狗的第一年其实相当于人的 15 岁左右,而且不同体型的狗衰老速度差很远。 于是做了个工具:dogyearcalc.com ( https://dogyearcalc.com/) 它做了什么: - 内置 4 种计算公式:AKC 体型公式、UC Davis 表观遗传时钟(测 DNA 甲基化得出的)、Standard 方法、以及那个不科学的 Classic 7x 方法(留着做对比) - 支持 386+ 犬种的品种特异性计算,大型犬和小型犬的衰老曲线完全不同 - 多狗对比模式——家里养了两只以上的可以并排看 - 生命阶段可视化 + 当前阶段的健康建议 - 8 种语言(中英日韩德西法葡) 技术方面: 纯静态站,HTML + CSS + 原生 JS ,部署在 Cloudflare Pages 。没有框架,没有注册,加载速度 89ms 。计算全部前端完成,不收集任何数据。 想听听大家的意见: 1. UI