Random Tattoo Idea Generator - Online Flash Sheet Picker
Get a random tattoo concept with style and placement suggestion. For fun and inspiration only. Not real art.
UD5 Toolkit
Online Thread Layout on Circle — Explore geometric beauty with pins & lines
Each layer draws with its own step & color. Max 5 layers.
Get a random tattoo concept with style and placement suggestion. For fun and inspiration only. Not real art.
Draw perfect ellipses by dragging focal points and a point on the curve. See the equation update dynamically. Educational.
Try to draw a perfect circle freehand. Score based on roundness. Fun and addictive. No data sent.
Random shapes appear; compute the area mentally. Multiple choice. For middle schoolers.
Draw pixel art with a grid, color palette, and eraser. Export as PNG. Perfect for game developers and hobbyists.
Estimate make probability of a putt based on distance and skill rating. For disc golf enthusiasts. Fun statistical tool, no data upload.
Type a word and see if it can be spelled using chemical element symbols. Geeky custom message creator. Copy or share.
Combine two random elements and get a surprising result. Inspired by Little Alchemy. Infinite ideas. All local.
Calculate the area of an irregular polygon by entering its vertex coordinates. Uses the shoelace formula. Pure math.
Create a virtual scratch card with a hidden message or prize. Send the link; recipient scratchs with mouse/touch. Canvas-based.
Draw a 3D box or room interior by dragging vanishing points. Great for learning perspective drawing. Export as image.
Select a destination language and generate a printable mini phrasebook with essential greetings, directions, food, and emergency phrases. Local only.
Roll virtual dice with animated 3D spins. Choose any number and type. See total and individual results. Fun for games.
Generate printable math worksheets for addition, subtraction, multiplication, and division. Choose difficulty and number of problems. Answer key included.
Drag the seven tangram pieces to form a target silhouette. Multiple puzzles. Develop spatial thinking. All canvas interactions.
Scroll through thousands of pre‑computed digits of π. Search for a specific string of digits. For math lovers.
A collection of clean, family‑friendly riddles with a reveal‑on‑click answer. Random riddle each time. Perfect for break time.
Get a random heartfelt or funny birthday message to write in a card. Choose from various tones. Local.
Classic memory card game with emoji or color themes. Select grid size and try to find all pairs in minimum moves. Brain training fun.
Enter a first name and last name, plus a domain, to generate common email address patterns. For finding contacts.
Peer into the virtual crystal ball to get a randomly generated, absurdly specific fortune. A fun start to your day.
Cute vegetable-themed memory matching game for preschoolers. No ads, simple interface.
Enter a three‑letter currency code like USD or EUR and instantly see the corresponding symbol and number of decimals. Quick developer reference.
A kanji appears; you guess how many strokes it has. Learn stroke order awareness.
Explore the RGB color space as a rotatable 3D cube. Pick a color directly from the volume. Drag to rotate. Canvas 3D.
Test a regular expression against malicious inputs to detect catastrophic backtracking and ReDoS vulnerabilities. Educational.
Compute probability for simple events, as well as permutations and combinations (nPr, nCr). Useful for statistics and game theory. Browser-based math.
Classic flip‑to‑match pairs game. Choose grid size and card theme. Tracks moves and time. All local.
Calculate odds of drawing specific cards or poker hands from a standard deck. Learn combinations. Local math.
Practice mental arithmetic with customizable operators and digit count. Timed rounds, score tracking. Works offline. Improve your brain speed.