UD5 Toolkit
Recycling Symbol Decoder – Online Plastic Numbers Guide
Click a plastic number (#1‑#7) to see what it means, if it's recyclable in your area generally, and common products.
Morse Code Cheatsheet - Online Printable Reference
Morse Code Cheatsheet
International Morse Code — Printable Reference & Interactive Guide
Text to Morse Code
Your morse code will appear here...
Letters A–Z
Numbers 0–9
Punctuation Symbols
Frequently Asked Questions
Fraction to Decimal Conversion Chart – Online Quick Reference
Interactive table showing common fractions and their decimal/percentage equivalents. Click to highlight.
Week Number & Start/End Dates - Online ISO 8601
Enter any date and get its ISO week number, plus the start and end dates of that week. Quick reference.
Text to Braille Image - Online Embossable PNG Generator
Convert short text into a black‑and‑white Braille bump image ready for embossing. Educational and inclusive.
Color Contrast Checker - Online WCAG Accessibility Validator
Check the contrast ratio between foreground and background colors to ensure web accessibility compliance. Get WCAG 2.1 AA/AAA pass/fail results instantly.
JSON to TypeScript Interface - Online Type Gen
Paste a JSON object and instantly get a TypeScript interface definition. Handles nested objects and arrays. Local only.
Bill Tracker – Online Visual Calendar for Due Dates
Add recurring bills with amounts and see a monthly calendar with due date indicators. Simple finance organizer.
Week Number Finder - Online ISO Week of Year
Enter any date and get the ISO week number. Also shows start and end of that week. Handy for project planning.
Accessible Color Contrast Finder - Online WCAG 2.1 Helper
Given a background color, this tool suggests foreground colors that meet AA/AAA contrast ratios. Works for all vision types.
PDF Signature Drawer - Online Add Handwritten Sign
Draw your signature on a canvas and overlay it onto a PDF document. All editing stays in your browser.
Image to Base64 Sprite Sheet - Online CSS Generator
Turn multiple images into a single Base64‑encoded sprite sheet and get the corresponding CSS background‑positions. Local.
Sublimation Press Time Calculator – Online Mug/T‑Shirt
Look up recommended time and temperature for various sublimation blanks. Quick reference.
iCalendar File Viewer - Online ICS Parser
Drop or paste an .ics file and see all events in a readable table. Check dates, times, and locations. Privacy‑friendly.
Time Zone Offset Lookup - Online UTC ± Hours City
Search a city or country and see its current UTC offset, DST status, and abbreviation. Quick reference for scheduling.
Coffee Roast Profile Color Meter – Online Agtron Number Estimator
Select roast level (cinnamon, city, full city, etc.) and see approximated Agtron color value and bean temperature.
Image Polar Coordinates - Online Swirl & Distort
Transform an image from rectangular to polar coordinates (and back). Create amazing circular swirl effects. Local canvas.
Photo to Comic Book Effect - Online Halftone & Boom
Transform your photo into a comic book panel with Ben‑Day dots, heavy outlines, and speech bubbles. Download as image.
Color Blindness Simulator - Online Vision Deficiency Preview
Simulate how images and UI elements appear to users with various types of color blindness. Upload or paste image URL. Promote inclusive design.
Image to Polaroid - Online Vintage Instant Photo Frame
Wrap any image in a classic Polaroid frame with optional text caption. Export as PNG. Nostalgic touch for social media.
Lottie Animation Previewer - Online JSON Player
Paste Lottie JSON code or upload a .json file and see the animation play. Control speed and loop. Perfect for developers.
Batch Image to Base64 Encoder - Online Multiple Files
Convert multiple images to Base64 data URIs at once. Copy individually or as a JSON array. Great for inline assets. Local.
Image Morphing Simulator - Online Face Blend
Upload two portraits and create a simple morph animation between them. Download as GIF. Local canvas magic.
Image Color Quantizer - Online Reduce Colors to 8‑bit Palette
Reduce the number of colors in an image to a retro 8‑bit look. Uses median cut quantization in the browser. Preview and download the stylized result.
Historical Cameras Timeline - Online Photography Evolution
Scroll through an interactive timeline of cameras from camera obscura to modern DSLR. Photos and facts.
Image Morphing Slideshow - Online Two Face Transition
Upload two face portraits and watch a simple morphing transition. Not professional, but fun experiment with canvas.
View Transitions Gallery Demo - Online Morphing Image Grid
Click an image and see a smooth cross‑fade and morph to a large preview using View Transitions API. Copy the implementation code.
Units of Measurement Reference - Online Quick Guide
Search and browse a comprehensive table of SI units and common imperial conversions. For students and engineers.
Currency Symbol Lookup - Online Find $ € ¥
Search by country or currency name to find its symbol and code. Quick static reference for international business.
TCP/UDP Port List - Online Common Service Reference
Searchable table of well‑known TCP and UDP ports with their services. Check 80, 443, 3306, and many more.
Self‑Care Bingo - Online Generate Wellness Grid
Create a printable bingo card filled with self‑care activities. Relax, exercise, hydrate. Tick them off.