Fast, free calculators and converters you can trust
Utilsverse gives you instant tools for everyday math, time and date planning, unit conversions, and more. Every page is ad-supported but lightweight, keyboard-friendly, and built with accessibility in mind.
Start with the live calculators below and follow the roadmap for upcoming releases. No accounts, no data collection—just quick utilities with clear explanations so you can verify every result.
Popular uses
- Calculate exact age for immigration, school, or HR forms
- Compare dates for project milestones and planning
- Work out percent change, margins, discounts, and tips
- Convert temperatures across °C, °F, and K for cooking or science
Why Utilsverse?
- Client-side, static export for fast global performance
- SEO-first pages with helper text, FAQs, and related links
- Consistent layouts and theming with ToolShell + surface components
- Fully typed utilities in `src/utils` backed by automated tests
Quick links (Live)
All tools
Showing 51 of 51Age Calculator
LiveExact age in years, months, days.
BMI Calculator
LiveBody Mass Index with category.
Date Difference
LiveDays plus Y/M/D between dates.
Percentage Calculator
LiveX% of Y, percent change, discount.
Temperature Converter
LiveCelsius / Fahrenheit / Kelvin.
Age on Other Planets
Coming soonFun cosmic age.
AI Image Upscale
Coming soonEnhance resolution.
Angle Converter
Coming soondeg <-> rad.
Area Converter
Coming soonm^2, ft^2, acre, hectare.
Audio Cutter/Converter
Coming soonTrim and convert audio.
Base64 Encode/Decode
Coming soonText <-> Base64.
BMR/TDEE/Body-Fat %
Coming soonMore health metrics.
Color Converter
Coming soonHEX, RGB, HSL.
Currency Converter
Coming soonDaily FX rates.
Data Size Converter
Coming soonKB/MB/GB/TB, GiB.
Discount Calculator
Coming soonStandalone discount helper.
EMI / Loan / Mortgage
Coming soonAmortization tables.
Energy Converter
Coming soonJ, kWh, cal.
File Converters
Coming soonDocs, images, audio, video.
Fraction Simplifier
Coming soonReduce to lowest terms.
GST/VAT Calculator
Coming soonRegional taxes.
Image Resize/Compress
Coming soonOptimize images.
IP Lookup
Coming soonGeo and ASN info.
JSON Formatter
Coming soonPretty and validate JSON.
JWT Decoder
Coming soonInspect token payload.
Length Converter
Coming soonm, cm, mm, in, ft, yd, km, mi.
Lorem Ipsum
Coming soonGenerate filler text.
Number Base Converter
Coming soonbin / dec / hex.
Palette Picker
Coming soonGenerate color palettes.
PDF Merge/Split/Compress
Coming soonEssential PDF tools.
Power Converter
Coming soonW, kW, hp.
Pressure Converter
Coming soonPa, bar, atm, psi.
QR Code Generator
Coming soonCreate QR codes.
Random Password Generator
Coming soonStrong, configurable passwords.
Ratio Calculator
Coming soonSimplify and scale ratios.
ROI Calculator
Coming soonReturn on investment.
SIP/Compound Interest
Coming soonGrowth over time.
Slugify
Coming soonURL-safe slugs.
Speed Converter
Coming soonm/s, km/h, mph, knot.
Stopwatch & Timer
Coming soonSimple timers.
Text Case Converter
Coming soonupper, lower, title.
Time Converter
Coming soonms/s/min/hr/day.
Time Zone Converter
Coming soonConvert across time zones.
Unix Time <-> Date
Coming soonEpoch <-> human time.
URL Encode/Decode
Coming soonEncode safely.
User-Agent Parser
Coming soonBrowser and OS details.
UUID v4 Generator
Coming soonRandom identifiers.
Video <-> GIF
Coming soonMake and share GIFs.
Volume Converter
Coming soonL, mL, gal, qt, cup.
Weight/Mass Converter
Coming soong, kg, lb, oz, t.
World Clock
Coming soonTrack multiple cities.