Shopping List Builder - Online Categorized Grocery Checklist
Create categorized shopping lists (produce, dairy, meat, etc.). Add items, check them off, and print. Data stored in your browser. Never lose a list.
UD5 Toolkit
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Create categorized shopping lists (produce, dairy, meat, etc.). Add items, check them off, and print. Data stored in your browser. Never lose a list.
Generate a checklist for traveling with only a carry‑on. Mix‑and‑match outfits. Toiletries rules.
Create or solve logic grid puzzles (like Einstein's riddle). Enter clues and mark the grid. Practice logical deduction. Local only.
Track personal expenses and categorize spending. Interactive charts show where your money goes. All financial data remains in your browser only.
Assign a color and number to each room and generate a printable inventory sheet. Check off box contents as you pack. Stay organized.
Interpret your blood pressure reading based on American Heart Association and European Society of Cardiology categories. Visual gauge with actionable health insights.
Fill in a pre‑designed meeting notes template and copy as formatted HTML or plain text. Quick documentation.
Check English spelling and get suggestions using the browser's built-in dictionary. Highlight errors instantly. No data leaves your machine.
Build your own Connections‑style puzzle with 4 categories and 4 words each. Share the puzzle as a code or link.
Play Rock Paper Scissors against a smart random CPU with win/loss/draw tracking. Smooth CSS animations. No ads, pure fun.
Create a friendly CONTRIBUTING.md file for your repository by filling in a few sections. Encourage contributions. Static template.
Enter terms and definitions and generate a clean `<dl>` HTML snippet. Great for glossaries and FAQs.
Generate a memorable quirk for a non‑player character. Combines speech patterns, habits, and appearance details.
Watch classic sorting algorithms step through a randomized bar chart. Adjust speed and array size. Great for learning algorithm efficiency.
Drag songs into a setlist and see total duration. Perfect for planning a concert or DJ set.
Patch the PerformanceObserver and show your page’s Core Web Vitals as you browse. See real‑time scores and suggestions.
Identify common grammar mistakes (subject-verb agreement, tense, articles) with simple rule-based analysis. Explanations provided. Not AI, purely rule-based and local.
Understand how !important behaves inside @layer vs unlayered styles. Interactive example. Avoid common pitfalls.
Design a digital business card with your photo, contact details, and social links. Download as vCard or share a URL. Local tool.
Compare time across multiple time zones and find a suitable meeting time. Convert a specific time to various cities. Browser-based and always accurate.
Set up first‑line indentation and hanging punctuation. See how they affect reading flow. Copy the CSS.
Adjust page characteristics (image size, server delay, layout shift) and see the simulated Core Web Vitals scores. Understand what impacts performance.
Search a database of baby names by origin, meaning, starting letter, or popularity. Save favorites list locally. Purely frontend with no tracking.
Select a heading font and get recommended body font pairings. Live preview with sample text. Copy the CSS import links.
Enter an acronym and see its most common full forms. Static dictionary. No internet needed after load.
Apply the drop‑shadow() filter and compare it with box‑shadow. See how it follows the contour of transparent images. Copy code.
Paste lines of text and automatically convert to an HTML ordered list with correct numbering and indentation.
Paste lines and convert them into bulleted lists with symbols like •, ‑, or →. Markdown friendly. Quick formatting.
Plot different Big‑O complexities on a chart. See how O(log n) stays flat while O(2^n) explodes. Educational reference.
Apply dyslexia‑friendly fonts, spacing, and background to any text. Preview and copy the formatted version. Improve readability.