UD5 Toolkit
Nano ID Generator - Online Compact Unique IDs
Generate short, URL‑safe, unique string IDs with customizable alphabet and length. Smaller than UUID. Local only.
NPM Package Name Generator - Online Unique Name Checker
NPM Package Name Generator & Unique Checker
Generate creative, available package names for your next Node.js library.
@
/
Frequently Asked Questions
Package names must be lowercase, URL-safe, and no more than 214 characters. They can contain hyphens and numbers, but cannot start with a dot or underscore. Scoped packages start with
@scope/.
We query the public npm registry API (
registry.npmjs.org). A 404 response means the name is available. Instant and accurate!
No. npm enforces lowercase-only names. Our generator automatically converts everything to lowercase and adds hyphens where needed.
Enter your organization scope in the optional field above. The generated names will include the
@scope/ prefix. Scoped packages are also checked for uniqueness.
This could be due to network issues or rate limiting. Click the refresh icon next to the name to retry, or use "Re-check All".
Each click generates up to 15 unique candidates. You can generate more batches with different keywords.
CONTRIBUTING.md Generator - Online Community Guide
Create a friendly CONTRIBUTING.md file for your repository by filling in a few sections. Encourage contributions. Static template.
Angle Precision Converter - Online DMS to Degree & Radian
Convert between decimal degrees, degrees-minutes-seconds (DMS), radians, and grads. High-precision for surveying and navigation. Local tool.
SSE (EventSource) Tester - Online Stream Listener
Connect to an SSE endpoint and display events in real time. Inspect event types and data. Handy for frontend devs.
Radiation Converter - Online Gray Rad Rem & Sievert
Convert between units of absorbed dose and equivalent dose (Gray, Rad, Rem, Sievert). Educational and reference. Local calculation.
Online Tone Generator - Audio Frequency & Sound Wave Tool
Generate pure audio tones of specific frequencies (Hz). Adjust waveform type (sine, square, sawtooth). Ideal for audio testing and science experiments.
Multi‑Player Trivia Buzzer - Online Family Feud Style
A simple web‑based buzzer system for trivia nights. Assign teams and see who buzzes first. Works on phones.
Simple Hash Generator - Online DJB2 & CRC32
Hash any text using simple, fast algorithms: DJB2, SDBM, or CRC32. Get integer or hex. For quick lookups. Local.
Random Dinosaur Name Generator - Online Prehistoric Fun
Generate a realistic‑sounding dinosaur name and see a fun description. Perfect for kids and writers.
CSS Checkerboard Pattern - Online Background Generator
Create a customizable checkerboard or grid background using pure CSS gradients. Adjust cell size and colors. Copy the code.
npm Version Range Checker - Online SemVer & Tilde Caret
Enter a package name and version range to see all satisfying versions from the registry. Understand ^ and ~.
Wi‑Fi QR Code Generator - Online Join Network Scan
Create a QR code that lets people connect to your Wi‑Fi without typing a password. Just scan and join. Secure local.
CSS Tooltip Generator - Online Hover Popup Builder
Design a pure CSS tooltip with custom text, position (top/bottom/left/right), and arrow. Copy the clean code.
Image to CSS Grid Layout - Online Pixel‑Based Generator
Upload a small pixel art image and get a CSS grid layout that recreates it using divs. Novelty developer tool.
Fake Company Slogan Generator - Online Creative Tagline
Generate a random, funny or serious company slogan for your startup idea. Brainstorming helper. All local.
Markdown Table Generator - Online Visual Builder & Formatter
Create and format Markdown tables by adjusting rows and columns. Align text, copy the raw Markdown. Perfect for README files.
Dad Joke Generator - Online Random Cheesy Puns
Click for an endless stream of random dad jokes and puns. Copy and share. Guaranteed to make you groan. All local.
Magic Square Generator - Online Create n x n Constant Sum Grid
Generate magic squares of odd order (3x3, 5x5, …). See the sum constant and verify rows, columns, diagonals. Educational math toy.
Sudoku Generator - Online Play & Create 9x9 Puzzles
Generate a random Sudoku puzzle with a unique solution. Choose difficulty and type numbers on the board. Timer and mistake counter.
Word Search Creator - Online Generate & Print Puzzle
Enter a list of words and create a custom word search grid. Choose difficulty, print or export as PDF. Great for teachers.
Excuse Generator - Online Funny & Creative Reasons
One click to get a hilarious excuse for being late, missing homework, or not doing chores. Pure comedy.
Fake Chat Generator - Online Prank Messenger Conversation
Create a fake WhatsApp/iMessage chat screenshot. Customize names, messages, and timestamps. Just for fun.
Haiku Generator - Online Random 5-7-5 Poem Creator
Click to generate a random haiku from natural language templates. Pure algorithmic poetry fun. Copy and share.
QR Code with Text - Online Add Label & Caption Below
Generate a QR code with a custom text label below or above. Perfect for printed signs. All generated locally as a single image.
Random Avatar Generator - Online Profile Picture Creator
Generate a unique geometric or pixel-art avatar from a random seed. Download as PNG. Perfect for default user icons. No upload.
Truth or Dare Generator - Online Party Game Questions
Generate random truth questions and dares for game night. Categories for kids, teens, and adults. No repeats, all client-side fun.
Gradient Text CSS Generator - Online Colorful Text Style
Create text with a gradient fill using CSS background-clip. Configure colors and direction. Copy the code. Works in modern browsers.
Robots.txt Generator - Online Create & Validate Robots File
Build a properly formatted robots.txt file with user-agent rules and sitemap location. Validate syntax in real time. Essential for webmasters.
Favicon Generator - Online Create Favicon from Image
Create a favicon for your website by uploading an image. Resize to standard sizes, download as .ico or PNG. All done locally without server involvement.
Text to Slug Converter - Online URL Slug Generator
Convert titles and sentences into clean URL slugs. Handles special characters, spaces, and case. Essential for CMS users and developers creating SEO-friendly links.