UD5 Toolkit
Random String Generator - Online Alphanumeric Randomizer
Create random strings of any length using custom character sets. Perfect for generating API tokens, salts, and unique codes. Fully client-side secure.
Random Math Problem Generator - Online Arithmetic Drill
📐 Random Math Problem Generator
Online Arithmetic Drill – Practice addition, subtraction, multiplication & division
Frequently Asked Questions
It's an online tool that creates unlimited arithmetic problems for practice. You can customize operations, number ranges, and difficulty levels to generate drills that match your skill level.
Select the operation (addition, subtraction, multiplication, division, or mixed), choose your desired number range or difficulty level, and set the number of problems. Click "Generate Problems" and start answering. Submit to check your answers instantly.
Yes! After generating a problem set, use the Print button to get a clean printout without the settings panel. Perfect for classroom worksheets or offline practice.
Absolutely! Our random math problem generator is completely free. No sign-up required, and you can generate as many drills as you like.
Random Potion Generator - Online Magical Elixir Ideas
Generate a random potion with a color, effect, and ingredient list. Ideal for RPG item shops and worldbuilding.
Random Fun Fact Generator - Online Useless Knowledge
Click to see a random, verified fun fact from science, history, and nature. Perfect for icebreakers. Static data.
Random Pie Flavor Generator - Online Gourmet Idea
Need inspiration for a new pie? Generate a random sweet or savory pie flavor combination. Get baking!
Abstract Icon Generator - Online Random Geometric Shapes
Click to get a randomly generated, unique abstract icon (geometric pattern). Download as SVG. For placeholder avatars and designs.
Random Dungeon Name Generator - Online RPG Delve
Create a foreboding dungeon name for your next D&D adventure. With optional adjective and location. Pure fantasy fun.
Random Sketch Idea - Online Drawing Prompt Generator
Click for a random drawing or sketching idea. Characters, objects, scenes. Beat artist's block. All local.
Random Emoji Generator - Online Get a Surprise Emoji
Generate a random emoji for reactions, game prompts, or just fun. Full Unicode emoji set. One-click copy.
Random Team Generator - Online Split Names into Groups
Paste a list of names and split them into a specified number of random teams. Perfect for sports and classrooms.
Random Favicon Generator - Online One‑Click Icon
Click to get a randomly generated, unique favicon. Download as .ico or SVG. For when you need a quick icon.
Random Robotics Company Name Generator - Online Tech Startup
Create a futuristic robotics or AI startup name with an available .com domain check simulation. For brainstorming.
Random Board Game Name Generator - Online Idea Spark
Generate a random name for a board game or card game. Combines adjectives and nouns. Ignite your game design creativity.
Random Emoji Reaction Generator - Online Surprise & Share
Click to get a random emoji with a short, humorous reaction text. Perfect for chat. Copy both.
Printable Word Search Puzzle Maker - Online Generator
Enter a list of words and generate a custom word search puzzle in PDF/PNG format. Great for teachers and parties. Local.
Web Worker Fibonacci Demo - Online Non‑Blocking Calculation
Calculate large Fibonacci numbers in a Web Worker. See the UI remain responsive. Copy the pattern for your app.
Cloze Test Generator - Online Remove Words for Learning
Paste a passage and automatically remove every nth word to create a fill‑in‑the‑blank exercise. For teaching and self‑study.
Random Emoji Story Generator - Online Decipher Tale
Translate a short, randomly generated emoji sequence into words. Guess the movie or phrase. Fun for chats.
FizzBuzz Interactive Tester - Online Coding Classic
Run the classic FizzBuzz with custom rules. See the output for any range. A beginner programmer's playground.
Wheel Spinner - Online Random Choice Picker & Name Draw
Enter a list of options and spin the wheel to make a random selection. Perfect for giveaways, classroom activities, and decision making. Fun and interactive.
package.json Generator - Online Interactive Creator
Fill in a form to generate a valid package.json for your Node.js project. Includes popular scripts and fields. Local only.
Random Shower Thought Generator - Online Deep & Funny
Get a random, mind‑bending shower thought. Amusing, existential, or just clever. Refresh for a new one.
Random JSON Generator - Online Create Sample API Responses
Generate random JSON data with customizable fields (users, products, orders). Useful for frontend mocking. All local.
Icebreaker Question Generator - Online Team Building Prompts
Generate random icebreaker questions for meetings, parties, or classrooms. Categories for work, fun, and deep talks.
Random Band Name & Album Title Generator
Generate a random band name, album title, and cover art description. Perfect for music inspiration. Click to refresh.
Simple Circuit Simulator – Online Visual Resistor LED
Drag a battery, resistor, LED onto a grid and simulate current flow. Show Ohm's law in action.
Domain Name Brainstormer - Online Word Combination
Enter keywords and get domain name ideas by mixing, prefixing, suffixing, and replacing. Check availability indication.
Border Radius CSS Generator - Online Rounded Corners Tool
Easily create asymmetric border radius values and preview the result. Copy the generated CSS instantly. All interactively and browser-based.
Random Weekly Meal Plan - Online Dinner Ideas
Get a randomly generated 7‑day dinner plan with simple recipes. Pick dietary preferences. Solve the 'what's for dinner' dilemma.
Dunder Mifflin Text Generator - Online The Office Style
Make your text look like the Dunder Mifflin logo heading. Bold, wide‑spaced, and ready to copy. For fans.
Virtual Rock Tumbler - Online Stone Polishing Simulator
Experience the four stages of rock tumbling virtually. Start with rough stones and watch them polish over 'days'. Satisfying.