The Locolory toolkit
Utility Tools
Practical tools for the details that make a difference. Free to use, right in your browser.
Aspect Ratio Calculator
Calculate custom aspect ratios, resize pixel dimensions, compare format presets, and copy production-ready CSS.
Open tool →02 / CSS & developmentPixels to REM / EM
Convert pixels, REM, and EM units against configurable root and parent font sizes with a live text preview.
Open tool →03 / Writing & cleanupClean Text & Line Breaks
Remove unwanted line breaks, preserve paragraphs, and normalize pasted PDF or document text entirely in your browser.
Open tool →04 / Print & planningPrintable Graph Paper
Generate printable square, engineering, dot, cross, and isometric graph-paper PDFs at accurate millimetre spacing.
Open tool →05 / Hospitality & teamsTip Pooling Calculator
Split restaurant gratuities by hours worked or custom point weights and export payouts that reconcile to the cent.
Open tool →06 / Operations & teamsShift Schedule Generator
Build 4-on-4-off, Pitman, DuPont, or custom shift rosters with printable calendars and ICS export.
Open tool →07 / Workshop & materialsCut List Optimizer
Optimize plywood and sheet-goods cut lists with kerf allowance, grain controls, visual nesting, and waste estimates.
Open tool →08 / SEO & structured dataLocal Business Schema Generator
Create validated LocalBusiness JSON-LD from NAP, opening-hours, geo, website, and business-type details.
Open tool →09 / Remote work & planningTime Zone Overlap Finder
Compare daylight-saving-aware working hours across global cities and copy the best remote-team overlap window.
Open tool →10 / Shipping & ecommerceDIM Weight Calculator
Compare divisor-166 and divisor-139 billable weights, convert package units, and estimate Amazon FBA size tiers.
Open tool →11 / Freelance & financeFreelance Rate Calculator
Calculate a sustainable freelance hourly rate, day rate, and monthly retainer from take-home goals, taxes, overhead, and billable capacity.
Open tool →12 / Property & financeRent Proration Calculator
Calculate daily prorated rent for move-ins, move-outs, and closing adjustments using actual-month, commercial 30-day, or annual 365-day methods.
Open tool →13 / Concrete & masonryConcrete Slab Calculator
Estimate concrete volume, premix bags, rebar grid lengths, and compacted aggregate for slabs, footings, patios, and driveways.
Open tool →14 / Images & printPassport Photo Cropper
Crop passport and visa photos to exact print dimensions, add biometric framing guides, and create downloadable 4×6 sheets entirely in your browser.
Open tool →15 / Automotive fitmentWheel Offset Calculator
Compare wheel offset, inner suspension clearance, fender poke, tire diameter, speedometer error, and common bolt-pattern references.
Open tool →16 / Electrical & off-gridBattery Bank Calculator
Build an appliance energy ledger and estimate off-grid battery capacity, inverter wattage, and copper DC cable gauge.
Open tool →17 / Inventory & retailBarcode Price Tag Generator
Create scannable retail price labels, expand item quantities, preview sticker sheets, and export vector print PDFs locally.
Open tool →18 / Property & leasingRoom Rental Agreement
Create a customizable room rental, roommate, or sublease agreement with live two-page preview and private print export.
Open tool →19 / Strength & athleticsBarbell Plate Calculator
Find exact plate combinations per side, visualize Olympic sleeves, filter available inventory, and build percentage warmup sets.
Open tool →21 / Ecommerce & resaleeBay Fee & Profit Calculator
Estimate category-based final value fees, promoted listing costs, cross-border surcharges, net profit, margin, and reseller ROI.
Open tool →22 / Creator commerceEtsy Fee & Pricing Calculator
Estimate listing, transaction, processing, Offsite Ads, regulatory fees, target prices, and handmade product profit.
Open tool →23 / Payments & invoicingStripe Fee Calculator
Estimate domestic and international card fees, Stripe product add-ons, net payouts, and grossed-up invoice totals.
Open tool →24 / Carpentry & lumberBoard Foot Calculator
Build a multi-board hardwood tally with quarter-thickness presets, board footage, lineal feet, waste, and project cost.
Open tool →25 / Carpentry & framingStair & Stringer Calculator
Calculate uniform stair geometry, stringer length, incline, and an IRC model-code dimensional check with a scaled profile.
Open tool →26 / Interior finishingDrywall Sheet Calculator
Estimate drywall panels, joint compound, tape, fasteners, waste, and material cost from room dimensions or direct area.
Open tool →27 / Flooring & tileTile & Grout Calculator
Estimate tile quantity, carton count, layout waste, and dimensional dry-grout requirements for common formats.
Open tool →28 / Architectural finishingPaint Coverage Calculator
Estimate wall and ceiling paint, primer, trim length, coat coverage, packaging, and material cost.
Open tool →29 / Roofing & framingRoof Pitch & Rafter Calculator
Convert X:12 roof pitch to angle, slope, geometric rafter length, surface area, and roofing squares.
Open tool →30 / Developer utilitiesUnix Timestamp Converter
Convert Unix seconds, milliseconds, and microseconds to UTC or local dates with DST-aware timezone display.
Open tool →31 / DevOps & systemsCron Expression Generator
Build and parse portable cron schedules with plain-English explanations, validation, and five upcoming local run times.
Open tool →32 / Developer toolkitJSON to TypeScript Converter
Infer TypeScript declarations and Zod validation schemas from JSON payloads entirely in the browser.
Open tool →33 / Developer systemsCIDR Subnet Calculator
Calculate IPv4 network, broadcast, masks, usable ranges, binary octets, and AWS VPC reservations.
Open tool →34 / Developer toolkitBase64 File Converter
Encode and decode UTF-8 text, images, files, and passive image Data URIs entirely in the browser.
Open tool →35 / Developer toolkitcURL to Code Converter
Convert common cURL request flags into JavaScript fetch, Axios, Python requests, and Node.js code.
Open tool →36 / Writing & editorialTitle Capitalization Converter
Format titles with practical Chicago, AP, APA, sentence, uppercase, and lowercase rules while preserving acronyms.
Open tool →20 / Acoustics & audioRoom Mode Calculator
Calculate axial, tangential, and oblique resonances, identify coincident bass modes, and inspect listening-position boundary fractions.
Open tool →37 / CSS & designFluid Typography Calculator
Generate fluid CSS type scales, Tailwind arbitrary values, and preview responsive font sizing between viewport endpoints.
Open tool →38 / CSS & designCSS Shadow & Glass Generator
Design multi-layer box shadows and frosted-glass surfaces with live CSS and Tailwind output.
Open tool →39 / SEO & contentSERP Snippet Preview
Simulate desktop and mobile search snippets with pixel-width feedback, visual truncation, and copyable meta tags.
Open tool →40 / Writing & editorialWord & Speaking Time Counter
Count text structure and estimate English syllables, Flesch Reading Ease, silent reading, and presentation time.
Open tool →41 / Tax & reimbursementMileage Reimbursement Calculator
Calculate mileage values with 2026 IRS rates, estimated tax savings, a printable log, and CSV export.
Open tool →42 / Payroll & wagesOvertime Pay Calculator
Estimate weekly gross pay under simplified federal or California daily overtime thresholds.
Open tool →43 / Operations & fulfillmentPacking Slip Generator
Build printable packing slips and pick lists with shipment references, addresses, item quantities, and CSV export.
Open tool →44 / Pricing & financeMarkup vs Margin Calculator
Convert cost, price, markup and gross margin, then simulate discount effects on unit profitability.
Open tool →45 / Business planningBreak-Even Sales Calculator
Calculate break-even sales, contribution margin, target-profit volume, and visualize revenue against costs.
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