col72 — Punch Card Simulator

Experience classic penny arcade games in your browser

Super retro game!

Web Logic Simulator

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

bin-magic | 2進数で作る数取りマジック

Interactive Magic Using Binary Number System

自動筆算プログラム PaperCalc

筆算の手順を教えてくれる算数教材

パタパタ案内表示機

That "flip-flop" is revived on the Web! A real Solari-style information display machine simulator packed with romance and gimmicks that lets you traverse railway lines across the country with just one finger. Which is your favorite route?

OhOi Web Search

シンプルに作ったデータ検索サイト

C language execution environment that runs in a browser

This is a C language execution environment that operates completely offline. While there are many functional limitations, most programs found in introductory textbooks can be executed. Programming learning is possible even on iPad.

フラッシュ暗算

自分の実力に合わせてフラッシュ暗算が出来ますよ！

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

ばーちゃるとろんぼーん

とろんぼーん！！！！！(擬き)

BINGO Number Generator

スマホでもパソコンでも使えます。

ASCII Art Logo Generator

You can easily generate ASCII art characters using symbols on a browser. We have prepared 4 types of ASCII fonts. All fonts are original creations.

Cyberpunk Fantasy Flight Simulator

Fly through the neon horizon.

お笑いMBTI診断

Diagnose your sense of humor based on actual research and papers!

EzyPY Builder

Let's create and run Python code with a Scratch-like feel!

自称年商かさ増しシミュレーター

年商を スケーラブルなトランザクションで 圧倒的に。

POPメーカー

Split the paper and print price tags and POPs together

Automation - Let's automate

PCの作業を自動化し、自分の作業を楽に。

Browser Kitty | Free web tools that work completely in your browser

A collection of free, somewhat practical web apps (PDF editing, automatic face pixelation for videos, PDF comparison, face recognition reception, counter, teleprompter, etc.)

Famous Quote Generator

This is a web app that automatically generates natural and emotional quotes by combining word and grammar data. You can enjoy meeting different words each time with just a button press.

Line break code visualization tool 🔍✨

開発者にしか需要無！改行コード表示するHTML

Text imaging tool font2png

It is a website where you can freely choose fonts and create PNG images of your favorite characters with outlines and shadows.

FormatArc - Easy Data Conversion

FormatArc is a lightweight site that processes JSON formatting, YAML conversion, and CSV conversion only within the browser. Input data is not sent to the server, and formatting and conversion can be completed on the spot.

e-colleague