All 86 Tools

Every tool on TechCrz, 7 groups, one list. Each one runs in your browser and sends nothing.

Unit converters (25)

Miles to Kilometers Converter1 mile = 1.609344 kilometers
Inches to Centimeters Converter1 inch = 2.54 centimeters
Feet to Meters Converter1 foot = 0.3048 meters
Yards to Meters Converter1 yard = 0.9144 meters
Centimeters to Feet Converter1 centimeter = 0.032808399 feet
Pounds to Kilograms Converter1 pound = 0.45359237 kilograms
Ounces to Grams Converter1 ounce = 28.349523 grams
Celsius to Fahrenheit Converter0 °C = 32 °F; F = C x 9/5 + 32
Celsius to Kelvin Converter0 °C = 273.15 K; K = C + 273.15
Square Feet to Square Meters Converter1 square foot = 0.09290304 square meters
Acres to Hectares Converter1 acre = 0.40468564 hectares
Square Miles to Square Kilometers Converter1 square mile = 2.5899881 square kilometers
Gallons to Liters Converter1 gallon = 3.7854118 liters
Fluid Ounces to Milliliters Converter1 fluid ounce = 29.57353 milliliters
MPH to km/h Converter1 mile per hour = 1.609344 kilometers per hour
Knots to MPH Converter1 knot = 1.1507794 miles per hour
m/s to km/h Converter1 meter per second = 3.6 kilometers per hour
MB to GB Converter1 megabyte = 0.001 gigabytes
GB to GiB Converter1 gigabyte = 0.93132257 gibibytes
Hours to Minutes Converter1 hour = 60 minutes
Days to Hours Converter1 day = 24 hours
Millimeters to Inches Converter1 millimeter = 0.039370079 inches
Cups to Milliliters Converter1 cup = 236.58824 milliliters
KB to MB Converter1 kilobyte = 0.001 megabytes
Weeks to Days Converter1 week = 7 days

Word CounterCount words, characters, sentences and reading time
Character CounterCount characters with and without spaces, against your own limit
Case ConverterSwitch text to upper, lower, title, sentence, camel and snake case
Remove Duplicate LinesDelete repeated lines and keep the first of each
Sort Lines AlphabeticallySort a list A to Z, Z to A, by number, by length or naturally
Slug MakerTurn a title into a clean URL slug
Text to Binary ConverterConvert text to binary code and binary back to text
Text to Hex ConverterConvert text to hexadecimal bytes and back
Base64 Encode and DecodeEncode text to Base64 or decode Base64 to text
URL Encode and DecodePercent-encode or decode text for web addresses
Add Line Numbers to TextPut a number in front of every line
Reverse LinesFlip the order of the lines in a list
Trim Whitespace and Extra SpacesRemove extra spaces, tabs and blank lines
Find and Replace TextReplace words in text, with optional regular expressions
Count Lines in TextCount lines, empty lines, unique lines and the longest line
Remove Empty LinesDelete blank lines from text
Reverse TextFlip text backwards, reverse words, or reverse each line
Shuffle Lines RandomlyPut a list of lines in random order

Percentage Calculator: What Is X% of Y?Find a percentage of any number
What Percent Is X of Y?Find what percent one number is of another
Percent Change CalculatorFind the percent increase or decrease between two numbers
Average Calculator (Mean, Median, Mode)Mean, median, mode, range and standard deviation of a list
Random Number GeneratorDraw random whole numbers from a range, with or without repeats
Roman Numeral ConverterConvert numbers to Roman numerals and back
Number to Words ConverterWrite a number out in words, with its ordinal form
Number Base ConverterConvert numbers between binary, octal, decimal, hex and base 36
GCD and LCM CalculatorGreatest common divisor and least common multiple of a list
Percentage Increase and Decrease CalculatorIncrease or decrease a number by a percentage
Ratio SimplifierReduce a ratio such as 1920:1080 to 16:9

Discount CalculatorWork out the sale price, savings and optional sales tax
Loan Payment CalculatorMonthly payment, total interest and the first 12 payments
Simple Interest CalculatorInterest = principal x rate x time
Compound Interest CalculatorGrowth of an amount with interest on interest
Tip CalculatorTip, total and each person's share

Unix Timestamp ConverterConvert Unix time to a date and a date to Unix time
Days Between Two Dates CalculatorCount days, weeks, months and weekdays between two dates
Add or Subtract Days from a DateFind the date that is N days, weeks, months or years away
Age CalculatorWork out exact age in years, months and days
Day of the Week CalculatorFind which weekday any date falls on
Week Number Calculator (ISO 8601)Find the ISO week number of any date

JSON Formatter and ValidatorPretty-print, minify and validate JSON
JWT DecoderRead the header and payload of a JSON Web Token
Regex TesterTest a regular expression and list every match and group
HTML Entity Encoder and DecoderEscape or unescape &, <, > and other characters for HTML
CSV to JSON ConverterTurn CSV rows into a JSON array
JSON to CSV ConverterTurn a JSON array into CSV for a spreadsheet
JSON MinifierRemove whitespace from JSON and see the bytes saved
Text Diff CheckerCompare two texts line by line
Query String ParserSplit a URL query into names and values

Password Strength CheckerEstimate how hard a password is to guess, without sending it anywhere
Password GeneratorMake strong random passwords in your browser
Hash Generator (SHA-256, SHA-1, SHA-512)Hash text with SHA-1, SHA-256, SHA-384 and SHA-512
UUID Generator (Version 4)Generate random UUIDs and check whether one is valid
Color Converter (HEX, RGB, HSL)Convert colors between HEX, RGB and HSL
Lorem Ipsum GeneratorMake placeholder paragraphs, sentences or words
Color Contrast Checker (WCAG)Check text and background contrast against WCAG AA and AAA
MD5 Hash GeneratorMake the MD5 hash of any text
SHA-1 Hash GeneratorMake the SHA-1 hash of any text
SHA-384 Hash GeneratorMake the SHA-384 hash of any text
SHA-512 Hash GeneratorMake the SHA-512 hash of any text
File Checksum Calculator (MD5, SHA-256)Get the checksum of a file without uploading it