Free Web Utilities — Calculators, Planners & Everyday Browser Tools

Featured Free Web Utilities

• Free Invoice Generator — Create PDF Invoices Online
  Generate professional invoices instantly. Add line items, taxes, logo, then download as PDF. Best for freelancers and small businesses. Open Free Invoice Generator →
• Free Visual Finance Planner — Budget & Cashflow Tool
  Plan budgets and model cashflow scenarios on an interactive canvas. Best for small business owners. Open Finance Planner →
• Free Mortgage Calculator — Monthly Payment & Amortisation — Calculate monthly mortgage payments, total interest, and full amortisation schedules
• Free Budget Calculator — Personal & Business Budgeting Tool — Track income, expenses, and savings in this free browser budget tool
• Free Arc Flash Safety Calculator — Incident Energy & PPE Calculator — Calculate arc flash incident energy and required PPE level for electrical safety
• Free 5 Whys Root Cause Analysis Tool — Mobile-first 5 Whys investigation with evidence tracking and action items
• Free FMEA Tool — Failure Mode and Effects Analysis — Score failure modes and calculate RPN values in a free browser FMEA tool
• Free Piping Layout Designer — Plan and design pipe routes and layouts in your browser
• Free Junction Box Size Calculator — Size and configure electrical junction boxes to code
• Free Brain Dump Notes App — Fast no-format note capture for getting ideas out of your head
• Free Advanced Calculator — Scientific & Engineering Calculator — Extended scientific calculator with engineering and conversion functions
• Free Dividend Yield Calculator — Calculate dividend yield and return on investment for stocks

Full List — All Free Web Utilities

• Budget Calculator — First, set your monthly budget goals below
• BuildSitePro — Plan multi-story construction inspections with interactive floor plans, inspection pins, progress tr
• CakeDesignerCost — Design custom 3D cakes with templates, custom text, and OBJ importing
• CustomerOnboard — Complete a 7-step client onboarding questionnaire for business goals, domain setup, audience, websit
• DivYield — Estimate dividend income from share price, share count, dividend per share or yield, with five-year
• ELEC CEC Compliance App — CEC visualizer for transformer sizing, conductor ampacity, voltage drop, load power, and basic prote
• FinanceCompound — Model compound growth with contributions, flexible frequencies, interest rates, charts, and final ba
• GeminiShopSquareConverter — Convert Shopify and Square product CSV files in the browser with platform-specific field mappings an
• Groshhh — Track food inventory, usage, shelf life, purchase history, forecasts, and shopping plans in a browse
• MarketingPersonaAnalyzer — Map and analyze 24 customer personas across 12 analytical dimensions and 13 business sectors
• MortgageCalc — Estimate monthly payments, total cost, interest, and amortization schedules for 15-, 20-, or 30-year
• PLC Controller Sim — Build browser ladder logic with timers, counters, sensors, actuators and factory demos, then export
• Prespective Test — Overlay a horizon, up to three vanishing points, guides, and an illustrative wireframe cube on a loc
• SolvProbFlyler — E-Commerce & Business Systems Automation
• Spring Crop Planner — Draw garden beds, set grid dimensions, place crops by cell, track planting statuses and notes, and e
• SquareShopifyInventoryConverter — Convert Shopify and Square product or inventory CSV files for market-day updates in either direction
• Adv Calculator — Browser advanced calculator for arithmetic, powers, roots, trigonometry, logarithms, constants, pare
• Calculator — Use a browser-based calculator for arithmetic with keyboard-style digits, decimal input, percent, si
• Epicircle Drawing Fourier — Draw or upload images to create Fourier epicycle animations
• Timer Demo — Run a browser countdown timer with 1–30 minute presets, pause/reset controls, +1 minute, status noti

Browse Other Free App Categories

• Free Business & Management Apps — Invoice generator, FMEA tool, finance planner, inventory, booking, and RCA tools
• Free Engineering & 3D Design Tools — 3D mould builder, STL generator, piping designer, junction box, arc flash calculator
• Free Reliability & Maintenance Tools — FMEA, 5 Whys, root cause analysis, benefit-effort matrix, capacity planning
• Free Web Utilities — Calculators, mortgage tool, budget planner, timers, and converters
• Free Media & Art Tools — Painting, audio visualiser, GIF creator, video frame editor
• Free Education & Learning Apps — Interactive simulations, science tools, and learning utilities
• Free Browser Games — Play Instantly — 40+ action, strategy, simulation, and trades-themed games

Need a Custom Tool Built for Your Business?

SolvProb builds custom web apps, business tools, and automation systems for small businesses and industrial companies across British Columbia. Every free tool in this gallery was built by the same engineers who build paid custom software.