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
Weigh your options, clarify your decisions.
(Pros total - Cons total)
Create categorized shopping lists (produce, dairy, meat, etc.). Add items, check them off, and print. Data stored in your browser. Never lose a list.
Build a simple decision tree by adding yes/no nodes. Flowchart style. Export as text outline.
Drag songs into a setlist and see total duration. Perfect for planning a concert or DJ set.
Create or solve logic grid puzzles (like Einstein's riddle). Enter clues and mark the grid. Practice logical deduction. Local only.
Enter terms and definitions and generate a clean `<dl>` HTML snippet. Great for glossaries and FAQs.
Multiple digital counters for tracking stitches, rows, and pattern repeats. Increment, reset. Works on mobile.
Choose the right extinguisher for kitchen, electrical, or garage fires. Interactive class chart. Home safety education.
Build a small crossword by adding words and clues. Export as a printable PNG or JSON. For classroom and fun.
Check English spelling and get suggestions using the browser's built-in dictionary. Highlight errors instantly. No data leaves your machine.
Select a desired emotional state (calm, energize) and get a suggested song structure with BPM range.
Beautify and format your CSS stylesheets instantly. Organize, minify, or prettify CSS code for better readability. Processed securely on client-side.
Patch the PerformanceObserver and show your page’s Core Web Vitals as you browse. See real‑time scores and suggestions.
Paste HTML and see the order in which elements would receive focus via Tab key. Highlight issues. Local accessibility testing.
Watch classic sorting algorithms step through a randomized bar chart. Adjust speed and array size. Great for learning algorithm efficiency.
Build a small crossword by adding words and clues. Export as a printable grid or solve in browser. Perfect for classrooms.
Paste lines of text and automatically convert to an HTML ordered list with correct numbering and indentation.
See the difference between :focus and :focus‑visible on interactive elements. Learn which to use for better UX.
Drag colored beads onto a virtual thread to design a repeating pattern. See total length. Save locally.
Detect browser support for font‑tech() and font‑format() values in @font‑face src. Check COLRv1, variable, etc.
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.
Drag and drop light sources, camera, and subject to plan a photo shoot. Export diagram as image. Simple and visual.
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.
Guided breathing exercises with animated circle for inhale/hold/exhale. Includes box breathing, 4-7-8, and resonant breathing patterns. Customizable intervals.
Enter a URL and a user‑agent to see if it is allowed or blocked by the robots.txt file. Quick bot validation.
Query DNS records for any domain directly from your browser using DNS-over-HTTPS. See A, AAAA, MX, CNAME, and TXT records. No logs.
Apply dyslexia‑friendly fonts, spacing, and background to any text. Preview and copy the formatted version. Improve readability.
Enter a number and see an animated factor tree breaking it down to primes. Perfect for teaching factorization.
Paste your CSS and strip all `!important` declarations in one click. See a list of affected rules. Local tool.
Type a child's name and create a printable dotted trace sheet. Practice fine motor skills. Local only.