Label Studio to YOLO / COCO
Convert Label Studio exported annotations directly into YOLO normalized text coordinates or COCO JSON format with zero server uploads.
RRULE ↔ Plain English & Cron
Translate RFC 5545 iCalendar RRULE recurring recurrence strings into plain human English, equivalent cron syntax, and upcoming occurrences.
Amazon Settlement to QuickBooks / Xero
Parse raw Seller Central Flat File V2 settlement reports into clean accounting journal CSVs with itemized FBA fees, refunds, and bank reconciliation.
DJI SRT to GPX & KML Track
Extract flight path GPS coordinates, barometer altitude, ISO, shutter, and distance metrics from drone video subtitle (.srt) files into GPX and Google Earth 3D KML.
Subtitle Compliance QA Auditor
Audit SRT and VTT subtitle files against Netflix (20 CPS, 42 CPL), YouTube, and Children's broadcast standards with instant violation highlighting.
Embroidery Thread Color Matcher
Cross-reference thread shade numbers across DMC, Madeira Polyneon, Isacord 40, and Brother using Delta-E color science and HEX color picking.
Amazon KDP Cover & Spine Calculator
Calculate exact book spine width, full cover dimensions, 0.125" bleed margins, and 300 DPI Canva pixel canvas dimensions for KDP paperback publishing.
3D Print G-code Cost & Quote
Parse slicer metadata from Bambu Studio, OrcaSlicer, PrusaSlicer, and Cura to price filament, electricity, machine depreciation, labor, and profit quotes.
Salary to Hourly Calculator
Convert annual salaries into exact hourly wages, monthly, and bi-weekly payouts with full itemized 50-state tax estimations and PTO adjustments.
Washington D.C. Paycheck Calculator
Calculate exact net take-home pay with 2025-2026 progressive D.C. income tax brackets, federal tax, FICA, and Maryland/Virginia commuter reciprocity.
Net 30 Payment Terms Calculator
Determine invoice due dates, weekend banking rollovers, 2/10 early settlement discount savings, and annualized APR financing yields.
Freshwater Aquarium Stocking Engine
Calculate freshwater aquarium bioload capacity, filtration requirements, water change frequency, and adult fish species compatibility.
Guitar Fret Spacing & Scale Calculator
Compute precision fret slot distances from nut and bridge in mm and inches with interactive fretboard visualization and CSV cut-sheet export.
Butter Sticks & Grams Converter
Convert US butter sticks to grams, cups, tablespoons, and European 250g blocks with practical fractions, atomic URLs, and printable kitchen cheat sheets.
Yeast Packet & Grams Converter
Convert 7g / 1/4 oz yeast packets to teaspoons, Active Dry to Instant (0.75x), and Fresh Cake yeast (3x) with accurate bread ratios.
Cake Pan Size & Volume Converter
Convert recipe batter between 8", 9", square, loaf, Bundt, and 9x13 pans using precise surface area calculations, depth notes, and baking time scaling.
Coffee Brew Ratio Calculator
Calculate exact coffee to water ratios (1:15 to 1:18) in grams, scoops, and ounces across V60, French Press, Chemex, Aeropress, Cold Brew, and Drip machines.
Pool Salt & Salinity Calculator
Calculate exact pounds and 40-lb bags of salt needed for saltwater pools. Supports Hayward, Pentair, and Intex with instant pool volume estimation.
Recessed Lighting & Spacing Calculator
Calculate can light count, grid rows, center-to-center spacing, distance from walls, and total lumens with 2D ceiling blueprint visualizer.
Circle Skirt Pattern Calculator
Calculate exact waist radius, total cutting length, fabric yardage, and cutting layout diagrams for full, half, and 3/4 circle skirts.
Rafter Length & Pitch Calculator
Calculate common rafter line length, roof pitch, rise, run, birdsmouth seat cuts, overhangs, and view 2D framing elevation blueprints.
Share Incentive Plan Calculator
Calculate UK SIP benefits: partnership share tax relief, 2:1 employer match, free shares, and 5-year tax-free vesting growth.
Baking & Recipe Conversions
Weight-to-volume culinary formulas, pan geometry scaling, and yeast hydration equivalents.
Developer & Media Engineering
Computer vision annotation conversions, recurring calendar algorithms, and broadcast media compliance.
Finance, Payroll & Invoicing
Marketplace seller fee reconciliation, multi-state wage breakdowns, and commercial payment scheduling.
Maker, Fabrication & Hobbies
Physical material estimation, slicer G-code auditing, colorimetric matching, and aquatic biology sizing.