UD5 Toolkit
Decision Tree Builder - Online Visual Yes/No Path
Build a simple decision tree by adding yes/no nodes. Flowchart style. Export as text outline.
Shopping List Builder - Online Categorized Grocery Checklist
Shopping List Builder
Smart categorized grocery checklist — stays saved in your browser
Add Item
Quick Add
Your List
0 items
Your shopping list is empty
Add items using the form or quick-add tags to get started!
Frequently Asked Questions
Our online categorized grocery checklist lets you add items, assign them to categories (like Fruits & Vegetables, Meat, Dairy, etc.), set quantities, and check them off as you shop. Your list is automatically saved to your browser's local storage, so it persists even after you close the tab. You can also print your shopping list or copy it as plain text — perfect for taking to the store.
Yes! Your grocery checklist is automatically stored using localStorage in your browser. There's no account needed, no server involved — your data stays private on your device. As long as you use the same browser and don't clear your site data, your list will be there when you return. This makes it a truly free online shopping list maker with no sign-up required.
Absolutely! Click the Print button and you'll get a clean, printable shopping list optimized for paper. The print layout automatically hides buttons and UI elements, showing only your items grouped by category — making it easy to navigate the grocery store aisle by aisle. It's one of the best features of our printable grocery checklist tool.
We offer 11 intuitive categories: Fruits & Vegetables, Meat & Seafood, Dairy & Eggs, Bakery, Frozen Foods, Beverages, Snacks, Condiments & Spices, Household, Personal Care, and Other. This categorized shopping list system mirrors how grocery stores are laid out, helping you shop more efficiently without backtracking through aisles.
Unlike many shopping list apps that require accounts, subscriptions, or app downloads, our tool is completely free, web-based, and works instantly. No registration needed. It features smart categorization, quick-add tags for common items, quantity tracking, a visual progress bar, and both print and copy-to-clipboard functionality. Plus, it's mobile-friendly so you can use it on your phone while shopping.
Yes! Our online grocery list builder is fully responsive and works seamlessly on smartphones and tablets. The interface adapts to smaller screens, with easy-to-tap checkboxes and buttons. You can build your list on desktop and check items off on your phone at the store — the data stays synced via your browser's local storage on each device.
Pros & Cons List Maker - Online Decision Helper
Create a weighed pros and cons list with a score. Help make tough decisions. Data saved locally.
Crochet Stitch & Row Counter – Online with Pattern Repeat
Multiple digital counters for tracking stitches, rows, and pattern repeats. Increment, reset. Works on mobile.
Lunchbox Idea Randomizer – Online Kid‑Friendly Meal Suggestions
Generate a balanced lunchbox meal suggestion (main + sides) with a click. Prevent lunch rut. No account, local.
Tab Focus Order Checker - Online Visualize Tab Navigation Flow
Paste HTML and see the order in which elements would receive focus via Tab key. Highlight issues. Local accessibility testing.
Blood Pressure Category Checker - Online AHA & ESC Guideline Tool
Interpret your blood pressure reading based on American Heart Association and European Society of Cardiology categories. Visual gauge with actionable health insights.
Focus Order Analyzer - Online Tab Navigation Check
Enter a URL and extract tab‐index order violations and focusable elements. Quick accessibility audit. Client‑side fetch.
Setlist Builder – Online Drag Songs into Order & Time
Drag songs into a setlist and see total duration. Perfect for planning a concert or DJ set.
Sorting Algorithms Visualizer - Online Bubble, Quick & Merge
Watch classic sorting algorithms step through a randomized bar chart. Adjust speed and array size. Great for learning algorithm efficiency.
SSL Certificate Checker - Online TLS Expiry & Info Tool
Inspect any website's SSL/TLS certificate details: issuer, expiry date, subject, and SANs. Verify certificate chains. All checks are private and require no server upload.
File Extension Database Lookup - Online Search Type
Search for any file extension to see its full name, MIME type, and description. Covers thousands of entries. Static data.
Folding Fitted Sheet Guide – Online Step‑by‑Step Animation
Animated SVG steps showing how to fold a fitted sheet perfectly. Clean visual reference.
Fire Extinguisher Selector – Online Class A B C D K Guide
Choose the right extinguisher for kitchen, electrical, or garage fires. Interactive class chart. Home safety education.
Crossword Builder - Online Create & Solve Simple Puzzles
Build a small crossword by adding words and clues. Export as a printable grid or solve in browser. Perfect for classrooms.
Bead Pattern Designer – Online Visual Stringing Sequence
Drag colored beads onto a virtual thread to design a repeating pattern. See total length. Save locally.
Name Tracing Worksheet Generator – Online Your Child's Name
Type a child's name and create a printable dotted trace sheet. Practice fine motor skills. Local only.
Alphabet Tracing Worksheet - Online Preschool Letter Practice
Generate customizable alphabet tracing sheets with uppercase and lowercase letters. Select letters to focus on. Instant print. Local only.
CSS Beautifier & Formatter - Online CSS Organizer
Beautify and format your CSS stylesheets instantly. Organize, minify, or prettify CSS code for better readability. Processed securely on client-side.
aria‑describedby Visualizer - Online Check Descriptions
Highlight elements with aria‑describedby and see the linked description text. Verify a11y annotations.
Caffeine Half‑Life Tracker - Online Blood Level Visualizer
Visualize how caffeine decays in your body over time. Enter intake amount and see remaining caffeine at bedtime to optimize sleep. Uses standard 5-hour half-life.
Therapeutic Playlist Builder – Online by Mood & Tempo
Select a desired emotional state (calm, energize) and get a suggested song structure with BPM range.
Crossword Puzzle Maker - Online Simple Grid Builder
Build a small crossword by adding words and clues. Export as a printable PNG or JSON. For classroom and fun.
Data Structure Visualizer - Online Array, Stack, Queue
Add, remove, push, pop items and watch the data structure change visually. Supports arrays, stacks, and queues. For CS students.
ISBN Validator - Online Check ISBN‑10 & ISBN‑13
Validate ISBN‑10 and ISBN‑13 numbers and compute their check digits. Useful for booksellers and libraries. All local.
Background‑Blend‑Mode Explorer - Online Layer Patterns
Stack multiple background images and blend them with colors. Create unique textures. Copy the CSS code instantly.
CSS Grid Auto Placement Demo - Online How Items Flow
See how grid-auto-flow: row vs column changes item placement. Add and remove items to understand the algorithm. Visual.
Structured Data Testing Tool - Online Validate Rich Results
Paste your JSON‑LD or Microdata and test it against Google's Rich Results criteria. Get warnings. Local linter.
BIP39 Mnemonic Generator - Online 12/24 Words
Generate cryptographically secure BIP39 mnemonic phrases (12 or 24 words) for HD wallet seeds. All entropy generated locally.
Text to Definition List - Online Term/Description HTML Maker
Enter terms and definitions and generate a clean `<dl>` HTML snippet. Great for glossaries and FAQs.
Breathing Exercise Timer - Online Box Breathing & 4-7-8 Guide
Guided breathing exercises with animated circle for inhale/hold/exhale. Includes box breathing, 4-7-8, and resonant breathing patterns. Customizable intervals.