UD5 Toolkit
Find & Replace Text - Online String Replacer Tool
Perform simple or regex-based find and replace operations on text. Batch replace words, phrases, or patterns instantly. Processed locally in your browser.
Stain Removal Assistant – Online Quick Treatment Finder
🧼 Stain Removal Assistant
Select stain type and fabric to get quick, effective treatment steps in seconds.
1. Choose Stain
Red Wine
Coffee
Grease/Oil
Ink
Grass
Blood
Tomato Sauce
Chocolate
Mud
Sweat
2. Choose Fabric
Cotton
Wool
Silk
Synthetic
Linen
Denim
âť“ Frequently Asked Questions
Soak the area in cold water, then apply a paste of baking soda and water. Let it sit for 30 minutes before rinsing. Follow with a vinegar and detergent mix. For white cotton, hydrogen peroxide can be used as a last resort.
No, chlorine bleach will destroy silk fibers and may cause yellowing. Always use gentle, oxygen‑based bleaches or, better yet, consult a professional cleaner for silk garments.
Re‑wet the stain with cold water first, then treat as fresh. Some dried stains (like ink or blood) may need prolonged soaking. Avoid heat until the stain is fully removed, as heat can set it permanently.
Dab (don’t rub) with rubbing alcohol using a cotton ball. Test on an inside seam first. For delicate fabrics, dilute alcohol with water. Rinse thoroughly with cold water afterward.
Yes! White vinegar, baking soda, salt, lemon juice, and club soda are excellent natural alternatives. They work best on fresh stains and are safe for most washable fabrics.
Protein‑based stains (blood, milk, egg) coagulate with heat, binding them to fibers. Always use cold water for such stains. Oily stains may spread in hot water; use warm water only after pre‑treatment.
PDF Text Cleaner – Online Fix Broken Lines & Hyphens
Paste text copied from a PDF and remove unwanted line breaks, hyphenation, and extra spaces.
Laundry Symbol Decoder – Online Wash, Dry, Iron Guide
Click to build a laundry symbol and learn its meaning, or look up common symbols. Never ruin clothes again.
Color Curves Editor - Online Adjust RGB & Brightness
Manipulate RGB and brightness curves with interactive splines. Apply professional color grading to your images. Fully in-browser.
Online Audio Noise Reducer - Free Background Hum Remover
Remove constant background noise from a short audio clip using a real‑time noise gate and spectral subtraction. All processing stays in your browser.
Image Edge Highlight - Online Find Outlines
Apply a Laplacian edge‑detection filter to your image and highlight the outlines. Neat technical effect. Local.
Home Repair Cost Estimator – Online Get Rough Job Prices
Select a repair type (leaky faucet, paint room, etc.) and get a typical cost range. Simple general guide, no personal data.
Skateboard Wheel Durometer Selector – Online Surface Match
Choose your riding surface (street, park, vert, rough) and get a recommended wheel hardness (78A‑101A) and size.
Bead Pattern Designer – Online Visual Stringing Sequence
Drag colored beads onto a virtual thread to design a repeating pattern. See total length. Save locally.
Mini Capsule Wardrobe Planner – Online 10‑Item Outfit Combos
Select 10 clothing items and generate all possible outfit combinations. Visual grid. Travel light.
Crontab Expression Editor - Online Interactive Cron Builder
Build cron expressions using a visual editor with dropdowns. See human-readable description and next run times. Easier than raw cron.
Spice Rack Organizer – Online Track Freshness & Quantity
Catalog your spices with purchase date, so you know what's still potent. Search and sort. Local database.
Opened Paint Freshness Checker – Online Smell & Consistency Guide
Enter the approximate age of opened paint and answer visual/olfactory questions to see if it's still usable. Reduce waste.
Rust & Corrosion Texture Generator - Online Apply to Image
Overlay a realistic rust or corrosion texture onto your photo. Adjust blend mode and opacity. Download result.
JSON Deep Diff Checker - Online Compare & Highlight Changes
Compare two JSON objects and see added, removed, or changed keys. Visual tree view with color highlighting. Handles nested structures. Local processing.
Lazy Loading Demo - Online See Intersection Observer
Scroll down to see images load lazily. Code snippet provided. Learn how native loading='lazy' works.
Cover Letter Generator - Online Customizable Job Application
Create a tailored cover letter based on job title, your skills, and a template. Download as text or PDF print. Private.
Subwoofer Phase Tester – Online Audio Check
Play low-frequency tones to check subwoofer phase alignment with main speakers. Simple tool.
JSON Formatter & Validator - Online JSON Beautifier
Online JSON formatting and validation tool, supporting JSON minify/beautify, syntax highlighting, and error locating. Data processed locally in browser for security.
Circle Image Cropper - Online Round Photo
Crop any image into a perfect circle and save as PNG with transparent corners. For profile pictures. Local canvas.
Net Worth Tracker - Online Assets & Liabilities Overview
Log your assets and liabilities to calculate your net worth over time. Data saved only in your browser for security. Simple and clutter-free.
Small Claims Court Case Organizer – Online Prepare Your Claim
Fill in plaintiff, defendant, claim details and organize supporting documents. Print a summary for court. Local only.
Letter Boxed Solver (NYT) – Online Find All Possible Words
Enter the 12 letters and get a list of possible single‑word or two‑word solutions. Cheat helper or learning tool.
CJK Text Line Break Tester - Online word‑break & line‑break
Test different line‑break and word‑break values on Chinese/Japanese/Korean text. See how browsers wrap. Essential for i18n.
JSON Path Finder - Online Search & Extract from Object
Search and extract values from a large JSON object using dot/bracket notation. Quickly locate deeply nested fields. Data stays local in your browser.
Color Noise Generator - Online White Pink Brown Blue Violet
Play infinite sound loops of white, pink, brown, blue, and violet noise. Volume control. Help focus or mask tinnitus.
Cron Job Simulator - Online Visual Schedule Tester
Set a cron expression and see a calendar of the next 1,000 execution times. Never miss a schedule again.
Image Round Transparent Corners - Online Smooth Edge
Apply rounded corners to an image and keep the background transparent. Save as PNG. Perfect for avatars and icons.
Interview Question Randomizer – Online Practice with STAR
Randomly displays behavioural interview questions. Record your answer, review later. Private practice tool.
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.