bin-magic | 2進数で作る数取りマジック

Automatic Handwriting Calculation Program PaperCalc

An arithmetic teaching material that teaches the steps of written calculation

Flash mental arithmetic

You can do flash mental arithmetic suited to your own skill level!

かけ算視覚化 Multiplication Visualizer

Let's feel the laws of multiplication with Greed and Steiner's multiplication circle! ‼️

zap number

It's a simple puzzle game where you tap adjacent numbers to "erase" them or "reduce them by subtraction." When the numbers are the same, they disappear; when they're different, the difference remains. After a certain number of operations, numbers rise up from the bottom, and when they reach the top row, the game is over.

BINGO Number Generator

It can be used on both smartphones and computers.

Web Logic Simulator

Just a circuit simulator. You can make calculators, games, anything.

IMAGINARY WORLD

Your imagination sets the world in motion.

calc4pro

This is a calculator that professionals should use. Let's get serious about what's in front of you. From custom formulas to ratio conversion.

sticker book

Let's create a digital stamp collection!

ap12's ToolBox

開発者向けの様々な細かいツールを集めたwebサイトです。

Re:Babel

論文特化の複雑な数式も対応している、超高精度な翻訳アプリです！

変換くん

ブラウザの端末内でファイルを変換するサイト

Reversi X

This is a Reversi app that you can easily play in a web browser. You can play online matches with friends, and it also features a CPU battle mode where you can enjoy playing alone at your own pace.

Engcard

You can create your own original English vocabulary notebook on the web. The functionality is specialized for memorizing English words.

Calcule - Math Puzzle Game | heavymoons

Mathematical Formula Reasoning Puzzle Game

I'll decide which one by flipping a coin!

This is an app that decides between two choices by coin toss.

Compound Rush

A game where you compete to see how large you can make numbers. Since we've prepared a time attack mode and a ranking for growth curve increases, you should be able to enter the top ranks even if you start later. This also serves as debugging.

Shisu Tan Master

That system makes English vocabulary easy on your smartphone!

見た目でズバリ分かる 応答速度チェッカー

col72 — Punch Card Simulator

I created a website where you can type FORTRAN-style language into IBM 029 punch cards on your browser and run it! As you type, holes open one by one in the card, and when you submit the deck, the results are printed on an IBM 1403 line printer.

There is NOTHING

Web ARG-type psychological horror game

Color Palette generator

Choose one color, and it generates a color palette that matches that color.

Diamond_Clicker

Crush diamonds with a satisfying crunch! A refreshing and delightful ultimate game!!

Practice

Let's learn trading by playing with 100,000 yen.