
Toolvica — Your Everyday Online Toolbox
Free online calculators and converters for finance, health, and education without signup.
@Toolvica · X
The full gallery
Tech stack
29 projects

Free online calculators and converters for finance, health, and education without signup.
@Toolvica · X

Practice multiplication tables with an interactive workout app.
@amanry28 · X
I don’t know why isn’t it getting that much attention it’s actually a big deal for people who do vibe coding, for people like who develop micro apps daily. As a teacher it’s so ise to just tell students to go to and practice tables… It’s so amazing

Collaborate with AI agents to solve math and science problems, with a public ledger of contributions.
KrishnaMadala · HN
ZeroThesis – Multiplayer Autoresearch with Agents

Play MathJump, a free online math runner game. Solve arithmetic, time each jump, and practise addition, subtraction, multiplication, and division.
barantt01 · V2EX
做了一个速算的小游戏,有空可以耍一耍 网页游戏 体验地址: https://mathjump.cc 游戏界面 

Take quick online tests and get instant results to track your progress.
Nalife520 · V2EX
做了一个在线反应、记忆与专注力测试网站 最近做了一个叫 [PickTests]( https://picktests.com/) 的在线测试站。 反应时间、序列记忆、瞄准训练这些东西,网上其实已经有很多了。真正让我想重新做一遍的,是不少页面要么堆了很多不必要的内容,要么广告和装饰比测试本身更抢注意力,到了手机上也不一定顺手。 所以我给这个项目定了一个比较克制的方向: 不急着增加更多测试,先把每一个已有的测试认真做好。 目前上线了 6 个测试: - 反应时间 - 瞄准训练 - 序列记忆 - 数字记忆 - 多目标追踪 - 斯特鲁普测试 首页:[反应测试]( https://picktests.com/zh/) 网站使用纯 HTML 、CSS 和 JavaScript ,没有账号系统。成绩保存在当前浏览器,打开页面就可以开始。 我现在主要在调整这些细节: - 操作是不是足够顺手 - 测试节奏会不会太快或太慢 - 结果能不能一眼看懂 - 动效和反馈会不会太多 - 手机、平板和电脑上的体验是否一致 目前最想先做好的页面

A finite supply of 1,000,000 individually numbered Nothing, priced in euros and documented with unnecessary seriousness.
@GetNothinglol · X
We are NOTHING - we provide NOTHING -

Answer arithmetic questions against the clock to earn combos and face boss challenges.
mqx · V2EX
算术小游戏,紧张刺激,欢迎来玩 简介:不断出现算术题目,答对增加时间,总时间不断减少增加压力,有连击奖励,boss 题目等,还可以分享成绩,欢迎来玩 游玩地址: https://77796e3a.pinme.dev/

Use free calculators for construction, 3D printing, materials, and development tasks.
@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

Use 100+ free online calculators for math, chemistry, physics, loans, health, and AI costs—no signup needed.
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

Solve calculus problems with step-by-step animated solutions for derivatives, integrals, and limits.
marcushuang4595 · V2EX
做了一个会把微积分解题过程“动起来”的计算器,想听听大家的意见 最近做了一个微积分学习工具 CalculusMate 。 起因是我发现很多计算器只给最终答案,即使列出步骤,也很难看出表达式究竟是怎样一步步变化的。所以我尝试把求导、积分和极限的计算过程做成可以逐步播放的形式。 目前支持: - 导数、积分和极限计算 - 展示每一步使用的规则 - 动画演示表达式的变化 - 支持常见数学符号键盘 - 中英文界面 - 基础计算无需注册 可以从这个页面体验: https://calculusmate.com/step-by-step 免费版本: https://calculusmate.com/free 目前还处于早期阶段,我比较想知道: 1. 解题步骤是否足够容易理解? 2. 动画是帮助理解,还是会让页面显得太复杂? 3. 还希望优先支持哪些题型? 欢迎直接指出问题,尤其是计算结果、移动端体验和表达不清楚的地方。

Play an interactive game exploring finite and infinite concepts.
@im_SuuQAQ · X
我根据这本书让claude做了一个网站 文案是自己写的 感兴趣的可以来看看

Interactive lessons in math, programming, data analysis, AI, and science.
@BruceWayne95290 · X
just leaving a comment cause its 1am and im vibe coding, will come back tomorrow (on an alt account for open claw fyi) I've worked with the following brands: vytadose, bajabeachco, jaje health, eric javits, 4knines, welleco, coatdefence