UD5 Toolkit
Print CSS Generator - Online Optimize Pages for Paper
Toggle print‑specific styles like removing backgrounds, showing link URLs, and adding page breaks. Generate a complete print stylesheet instantly.
Portable Generator Sizing – Online Wattage Estimator
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watts
Peak Surge Watts
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watts
Min Generator Size
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watts (starting)
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🔧 Related Tools
Print CSS Generator - Online Optimize Page for Paper
Add print styles like removing backgrounds, adding page breaks, setting margins. See print preview instantly.
One Rep Max Calculator - Online Strength & Lifting Estimator
Estimate your one‑rep max (1RM) from weight and reps. Supports multiple formulas (Epley, Brzycki). Training percentages table.
Ideal Weight Range Calculator - Online Hamwi, Devine & Robinson Methods
Find your healthy weight range using multiple medical formulas (Hamwi, Devine, Robinson, Miller). Frame size adjustment included. Instant local computation.
Molar Mass Calculator - Online Molecular Weight Tool
Enter a chemical formula (e.g., H2O, C6H12O6) and calculate its molar mass. Handles parentheses and hydrates. Pure frontend.
One‑Rep Max (1RM) Calculator - Online Lifting Progress
Estimate your one‑rep max from weight and reps. Supports Epley, Brzycki, Lombardi formulas. See your strength level.
Element Resize Detector - Online Monitor Size Changes
Select any element on the test page and monitor its size changes with ResizeObserver. See log of all entries.
One Rep Max (1RM) Calculator - Online Strength Trainer Tool
Calculate your one-rep max using Epley, Brzycki, Lombardi or O'Conner formulas. Predict maximum lifting capacity and plan progressive overload. 100% local processing.
Tire Size Visualizer - Online Compare & Dimensions
Enter two tire sizes and see a side‑by‑side comparison of diameter, width, and speedometer error. Local math.
CSS resize Property Demo - Online User‑Resizable Element
Make an element resizable horizontally, vertically, or both. See the handle and code. Useful for textareas.
Font Size Scale Preview - Online Typography Visualizer
Type a few words and see them rendered at every heading size (h1–h6) with your chosen font. Perfect for design systems.
CSS Custom Cursor Generator - Online Pointer Design
Upload a small image and generate the CSS code for a custom cursor. Test it live on the page. Tiny but useful.
size‑container Demo - Online Intrinsic & Styled Queries
Explore the size‑container and inline‑size CSS properties for container queries. Understand containment contexts. Visual guide.
Resize Observer Playground - Online Watch Element Size
Drag to resize a box and see the Resize Observer callback fire. Get contentRect and borderBoxSize. Learn the API.
Password Bit Strength Visualizer - Online Security Meter
Type a password and see a bar that fills based on estimated bits of entropy. Color‑coded feedback. No storage.
WebAuthn Response Decoder - Online Unpack Attestation
Paste a raw WebAuthn attestation response (CBOR) and decode its fields: format, authenticator data, and extensions. Debug passkeys locally.
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.
PWA Manifest Generator - Online Create app.webmanifest
Fill in your PWA details to generate a valid manifest.json file. Include icons, theme color, display mode.
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.
Date Duration Calculator - Online Calendar & Workdays
Calculate the exact number of days, weeks, months, and workdays between two dates. Visual calendar highlights. Perfect for projects.
Sample Size Calculator - Online Survey & A/B Test Tool
Determine the minimum sample size needed for a survey or A/B test with a given confidence level and margin of error.
Bayes' Theorem Calculator - Online Probability Update Tool
Easily compute posterior probabilities given prior, likelihood, and marginal likelihood. Visual diagram. All local.
Golden Ratio Calculator - Online Find Balanced Proportions
Enter a number to find its golden ratio long and short segments. Use for pleasing design layouts. Instant.
Megapixel Calculator - Online Print Size & Resolution
Find out how large you can print based on image resolution in pixels. Understand DPI and megapixels.
F‑Stop Calculator - Online Aperture & Depth of Field Reference
Learn about f‑stops and their effect on light and depth. Calculate equivalent exposure adjustments. Educational.
CAGR Calculator - Online Compound Annual Growth Rate
Find the CAGR of an investment given start and end values over a time period. Instant growth rate.