Keyboard Shortcut Recorder - Online Capture Combinations
Press any key combination and record the sequence. Export as JSON or human‑readable text. Perfect for documenting shortcuts.
UD5 Toolkit
Design & print professional envelope addresses instantly
Tip: Click Save Return to remember your return address for next time.
Press any key combination and record the sequence. Export as JSON or human‑readable text. Perfect for documenting shortcuts.
Compare insulation materials and thicknesses to achieve a target R-value. Understand U-factor. Educational home improvement tool. Local.
Quickly find the final price after a percentage discount. Also works in reverse to find the original price. Handy for budget shoppers.
Generate a sample sleep schedule for babies 0-24 months based on age-appropriate wake windows. Nap count and bedtime suggestions. Educational reference.
Enter bolt diameter and applied torque to estimate clamping force. Use standard friction factors.
Calculate probability of getting a specific sum when rolling multiple dice. Visual bar chart. Useful for tabletop RPG players. Instant local computation.
Enter two date‑time values and get the exact years, months, days, hours, minutes difference. Word output also.
Display used/total/limit JS heap size using performance.memory. Take snapshots and see growth. Simple memory leak detection.
Roll any number of dice thousands of times and see a live bar chart of the sum distribution. Great for game designers.
Rate symptoms severity daily and add notes. Visual pain map. Export for doctor visit. Private local storage.
Connect to a WebSocket endpoint, send messages, and view the stream of received data. Perfect for debugging real‑time apps.
Type JavaScript expressions and see output like a real browser console. Supports console.log, error, warn. Use for quick testing without DevTools.
Drag a positioned box and see the top/right/bottom/left values change. Understand containing blocks. Visual.
Enter your elevation and find the exact boiling point of water. Useful for high‑altitude cooking and tea brewing. Local math.
Play the Pig dice game: roll to accumulate points, but a 1 ends your turn. First to 100 wins. Simple hot‑seat local game.
Visualize the probability distribution of dice rolls as a color‑coded heatmap. For any NdM combination. RPG strategist's dream.
Enter HSL values and get the exact RGB representation. Also shows hex. For fine‑tuning design tokens. Client‑side.
Get a piece of either wise or hilariously useless advice. Instant life tips. Pure fun.
Randomly given base form, type past simple and past participle. Score tracking.
Test the powerful :has() pseudo‑class. Write selectors like .card:has(img) and see the live result. Revolutionary for CSS architecture.
Flip a coin and track your full history. See percentage of heads/tails and longest streak. Pure RNG, no bias.
Drop landmarks onto an aged parchment background to create a custom treasure map. Print for kids.
Enter network name and password to generate a stylish printable card for visitors. Local, no data leak.
Generate printable math worksheets for addition, subtraction, multiplication, and division. Choose difficulty and number of problems. Answer key included.
Enter image pixel dimensions and compute maximum print size at various DPI. With aspect ratio presets (4x6, 5x7, 8x10) and cropping preview. Local tool.
Upload an image and see the cyan, magenta, yellow, and black plates as separate grayscale images. Pre‑press tool.
Enter CMYK values and find the closest Pantone Solid Coated color. For print design reference. Client‑side lookup.
Choose where page breaks should occur for printing. Get the break‑before, break‑after, and break‑inside CSS.
Upload an image and see a rough simulation of how it might look when printed. Highlights areas that may lose detail.
Enter a URL and instantly generate a PDF version using the browser's print-to-pdf engine. Private, no upload.