Tools
230+ available tools · Discover powerful tools — fast, reliable, and completely free.
🃏 24 Game 🃏
The classic 24 card game! Given 4 random numbers, combine them using +, −, ×, ÷ to reach exactly 24. Every number must be used exactly once. Choose your difficulty (1–6, 1–9, or 1–13), build a streak, and beat your best time!
🔢 Sudoku 🔢
Classic 9×9 Sudoku with four difficulty levels — Easy, Medium, Hard, and Expert. Features a live timer, mistake counter, pencil notes, and 3 hints per puzzle. Beat your best time!
🧩 MathDoku 🧩
A KenKen-style arithmetic puzzle! Fill the grid with 1–N so every row and column contains each number exactly once. Each outlined cage must equal its target value using addition, subtraction, multiplication, or division. Choose from 4×4, 5×5, or 6×6 grids.
2D Shape Explorer
Identify 2D shapes like triangles, squares, pentagons, hexagons, and more by counting their sides and corners. Features colorful SVG shapes, multiple question types (name, sides count, corners count), and three difficulty levels.
3D 3MF Viewer Online
View and inspect 3MF (3D Manufacturing Format) files directly in your browser. Interactive 3D viewer with rotation, zoom, environment lighting, and screenshot capabilities. No downloads required.
3D DAE Viewer Online
View and interact with 3D DAE (Collada) models online for free. Upload your DAE files, rotate, zoom, pan, and take screenshots with our browser-based 3D viewer.
3D GLB Viewer Online
View and inspect GLB 3D models online for free. Upload GLB files, rotate models, change environments, take screenshots, and explore 3D animations directly in your browser.
3D OFF File Viewer
View and interact with 3D OFF (Object File Format) models directly in your browser. Upload OFF files and explore them with interactive 3D controls, environment settings, auto-rotation, and screenshot capabilities.
Acronym Generator
Turn any word into a creative acronym expansion! Pick a word from 42 preset options across 6 categories — or type your own — then fill in a word for each letter to build your unique acronym. Compare your creation with a built-in fun alternative.
Acrostic Puzzle – Solve Clues to Reveal a Hidden Phrase
Play acrostic puzzles where you solve word clues and the first letters of each answer spell out a hidden phrase. Features five categories, three difficulty levels, and a hint system.
Add Text to Image Online
Easily add custom text to your images online for free. Customize fonts, colors, sizes, and apply artistic styles like shadow, neon, and outline. No downloads, all in your browser.
Add the Animals
2 cats + 3 cats = ? Count adorable animal emoji to solve addition problems up to 10. A visual and engaging way for young learners to practice adding numbers through counting.
Algebra Challenge — High School Math Quiz
Solve equations, factor polynomials, simplify expressions — pick the correct answer from four choices. 45 problems across three tiers: Algebra I (linear equations, slope, basic factoring), Algebra II (quadratics, systems, logs, sequences), and Advanced (pre-calculus, complex numbers, inverse functions, infinite series).
Anagram Solver Game
Unscramble jumbled letters to form the hidden word! Choose from 7 categories and 3 difficulty levels. Race against the timer, use hints, and build your streak in this fun anagram word game.
Angle Estimator Game
Train your eye for geometry! An angle is drawn on screen using two rays from a common vertex. Estimate the angle in degrees, then lock in your answer. The closer your guess, the higher your score — within 2° earns a perfect bullseye!
Animal Spinner Wheel
Spin the wheel to discover random animals! Customize your animal collection, add your own creatures, and enjoy this interactive animal picker game with beautiful animations.
App Icon Maker Online
Create professional app icons with rounded corners and custom backgrounds for iOS, Android, and Desktop platforms. Upload your logo, adjust settings, and generate all necessary icon sizes instantly.
Best Deal Finder
Compare two prices for the same item quantity and pick the better value. Introduces unit price thinking for grades 3–5. Practice finding the best deal by calculating price per item.
Bird Spinner Wheel
Spin the wheel to discover random birds! Customize your bird collection, add your own feathered friends, and enjoy this interactive bird picker game with beautiful animations.
BMI Calculator Online
Calculate your BMI (Body Mass Index) and get a comprehensive health score. Supports both metric and imperial units with personalized recommendations based on gender and exercise frequency.