UD5 Toolkit
Binocular Astronomy Target Finder – Online Objects Tonight
Select aperture and see a list of deep-sky objects visible tonight with binoculars. Log what you saw.
Constellation Finder – Online Interactive Planisphere by Month
Clearly Visible
Partially Visible
Below Horizon
| Hover or click constellations
Constellation Finder
Hover over a constellation on the star chart
or click to lock your selection.
🔭 Best viewed around 9–10 PM local time
Solar System Scale Model - Online Visual Comparison
See planets and orbits at true scale (or logarithmic). Scroll from the Sun to Pluto. Understand space distances. Canvas.
Moonrise & Moonset Calculator – Online Plan Night Photography
Enter a date and location to see moonrise/set times and azimuths. Essential for planning moonlit landscapes.
Solar System Simulator 2D - Online Top‑Down Orrery
Watch the planets orbit the Sun in a top‑down 2D view. Adjust speed and zoom. Distances not realistic; beautiful model.
Exoplanet Name Generator - Online Alien World Catalog
Generate a realistic‑sounding exoplanet designation (e.g., Kepler‑442b) and a sci‑fi planet description. For worldbuilding.
Wing Loading Calculator – Online Skydiving & Paragliding Safety
Enter your exit weight and canopy size to calculate wing loading. Helps determine if you're within the safe recommended range.
Birthstone Finder - Online Gem by Month
Select a month and see the modern and traditional birthstones with images and meaning. Classic reference.
TV Viewing Distance Calculator - Online Size vs Resolution Guide
Find the optimal TV size for your room or the best viewing distance based on screen size and resolution (1080p, 4K, 8K). Simple THX/SMPTE reference.
Advanced .gitignore Generator – Online Multi‑Tech Stack
Select multiple languages and tools (Node, Python, Mac, Windows) and generate a combined .gitignore.
Close‑Up Lens Diopter Calculator – Online Magnification Estimate
Convert diopter strength to approximate magnification and working distance for macro photography.
Companion Planting Guide – Online Garden Friend/Foe Checker
Select a vegetable and see its best companion plants and which to avoid. Visual grid with quick reference. Improve garden yield and health naturally.
Lightning Distance Calculator - Online Count Thunder to Flash
Tap when you see lightning, tap again when you hear thunder. Calculates how far away the storm is in miles/km. Important outdoor safety tool.
Hypergeometric Distribution Calculator - Online Sampler Probability
Calculate probability of k successes when sampling without replacement. Useful for quality control and card games.
Distance Between Two Points - Online 2D & 3D Calculator
Compute the Euclidean distance between two points in 2D or 3D space. Also shows midpoint. Quick geometry helper.
Open Graph Generator - Online OG Meta Tags Builder
Build perfect Open Graph meta tags for rich social media previews. Preview how your link will look on Facebook and LinkedIn. Structured data tools for better CTR.
Meta Tag Generator - Online SEO & Social Meta Tags Creator
Generate comprehensive HTML meta tags for SEO and social sharing (Open Graph, Twitter Cards). Copy ready-to-use code. Boost your search visibility.
dBm to Watts Converter - Online RF Power Unit Calculator
Convert between dBm, milliwatts, and watts. Simple calculator for RF engineers and WiFi signal analysis. Instant local calculation.
Altimeter Setting Calculator – Online inHg to hPa
Convert between inches of mercury and hectopascals for altimeter setting. Essential for pilots.
Viewport Unit Calculator – Online vw vh vmin vmax to PX
Enter a CSS value in vw/vh and see the actual pixel size at current viewport. Dynamic resize demo.
Projector Throw Distance Calculator - Online Screen Size Estimator
Calculate projector throw distance or screen image size based on throw ratio. Visualize setup. Essential for home theater planning. Local.
Carnivorous Plant Water Guide – Online PPM & TDS Reference
Learn what water is safe (rain, distilled, low PPM) for pitcher plants and flytraps. Visual PPM scale.
Seed Needs Calculator – Online Rows, Spacing, Packet Count
Enter row length and seed spacing to calculate how many seeds/packets to buy. Reduce waste.
Macronutrient Calculator - Online Protein Carb Fat Split
Determine your ideal daily macronutrient intake based on TDEE, goal, and diet preference. Free nutrition planning tool with local computation.
Djembe Rope Tension Calculator – Online Knots & Length
Estimate how much rope you need to restring a djembe and the number of verticals. Get traditional Mali weave instructions.
Terrarium Layer Calculator – Online Drainage, Charcoal, Soil Depth
Enter container height and get recommended depths for each layer (drainage rock, charcoal, moss, soil). Build a healthy miniature ecosystem.
Tile Grout Calculator – Online Coverage & Spacer Guide
Calculate grout needed (lbs or kg) based on tile size, grout joint, and area. Also recommend spacer size. Local estimator.
Bird Seed Mix Calculator – Custom Feeder Blends
Create a custom bird seed blend by mixing ingredient percentages. Calculates total weight and helps attract specific bird species with the right nutrition.
Water Leak Cost Calculator – Online Drip to Gallon Waste
Select drip speed or running toilet and see gallons wasted per day and annual cost. Fix leaks!
Critter Syringe Feeding Calculator – Online ml per meal
Calculate critical care formula volume based on weight. For rabbits, guinea pigs, etc.
Macronutrient Split Calculator - Online Protein, Carbs, Fat
Based on your calorie goal, get the perfect gram split of proteins, carbs, and fats. Adjust ratios. For fitness and health.