Free Tools
A directory of free online calculators and utilities from our wider network. No sign-ups, no paywalls — just handy tools for everyday calculations, conversions and developer tasks. These open in a new tab.
Square Footage Calculator
Work out area in square feet for rooms, floors and projects.
thesquarefootagecalculator.comPercentage Calculator
Percent of a number, increases, decreases and differences.
bestpercentagecalculator.netAge Calculator
Calculate exact age in years, months and days from any date.
theagecalculator.netHours Calculator
Add up hours and minutes between times — timesheets and shifts.
calculatehours.netMargin vs Markup
Convert between profit margin and markup, and price products.
marginvsmarkup.comGirth Calculator
Calculate combined length-plus-girth for parcels and shipping.
girthcalculator.comBox Volume Calculator
Volume of a box from its dimensions, in your chosen units.
boxvolumecalculator.comDimensional Weight
Work out dimensional (volumetric) weight for couriers.
dimweightcalc.comUnit Cheat Sheet
Quick reference for unit conversions across measurement systems.
unitcheatsheet.comCase Converter
Change text between upper, lower, title, sentence and other cases.
transformcase.comWord Counter
Count words, characters, sentences and paragraphs in your text.
wordcounterfree.comText Repeater
Repeat any text or phrase a set number of times instantly.
textrepeat.netOnline Clock
Clock, time zones and simple time tools in your browser.
clockwithus.comCrontab Cheat Sheet
Build and decode cron schedule expressions with ease.
crontabsheet.comRegex Guide
Reference and helper for building regular expressions.
regexguide.comBase64 Encode / Decode
Encode text to Base64 or decode Base64 back to text.
base64decode.toolsURL Encode / Decode
Percent-encode or decode URLs and query strings.
urlencodedecode.comJSON Tools
Format, validate and minify JSON in your browser.
jsontools.toolsHash Generator
Generate MD5, SHA and other hashes from your input.
hashgenerator.toolsUUID Generator
Generate random UUIDs / GUIDs for development use.
uuidcore.comEpoch / Unix Time
Convert between Unix timestamps and human-readable dates.
epochtime.toolsPassword Strength
Check how strong a password is against common attacks.
passwordstrength.netRemove Metadata
Strip EXIF and other metadata from files for privacy.
removemetadata.toolsPicture Toolkit
Resize, convert and edit images online — a handy image kit.
pictoolkit.comCIDR Calculator
Calculate IP ranges, hosts and blocks from CIDR notation.
cidrcalculator.netSubnet Mask Calculator
Work out subnet masks, ranges and host counts for networks.
subnetmaskcalc.net