Free online tools, done right.
Fast, privacy-friendly utilities that run entirely in your browser — nothing is uploaded to a server. New tools are added continuously.
Indian land & area converters
Land units that vary by state
Time converters
Time Converter
Milliseconds, seconds, minutes, hours, days and weeks — including the much-searched milliseconds → minutes. Exact factors.
TimeMillisecond → Minute
TimeMillisecond → Second
TimeSecond → Minute
TimeMinute → Hour
TimeHour → Day
TimeDay → Week
TimeSecond → Hour
TimeMinute → Day
TimeNanosecond → Second
TimeMicrosecond → Second
TimeNanosecond → Millisecond
TimeMicrosecond → Millisecond
TimeNanosecond → Microsecond
TimeHour → Second
TimeDay → Second
TimeMinute → Millisecond
TimeWeek → Day
Length & distance converters
Length & Distance Converter
Metres, feet, inches, miles, nautical miles — plus traditional units: hand, span, finger, cubit, rod/pole, link and chain.
LengthKilometre → Metre
LengthFinger → Centimetre
LengthHand → Inch
LengthCentimetre → Kilometre
LengthMetre → Inch
LengthFoot → Link
LengthMillimetre → Point
LengthAstronomical Unit → Centimetre
Volume & capacity converters
Volume & Capacity Converter
Litres, cubic metres, cubic inches/feet, US & imperial gallons, quarts, pints, fluid ounces, tablespoons, bushels and barrels.
VolumeUS Bushel → US Gallon
VolumeCubic Inch → Cubic Metre
VolumeUS Quart → Imperial Fluid Ounce
VolumeCubic Metre → Oil Barrel
VolumeUS Teaspoon → Imperial Fluid Ounce
VolumeUS Pint → Cubic Inch
VolumeMillilitre → US Fluid Ounce
VolumeMillilitre → US Quart
Temperature converters
Temperature Converter
Celsius, Fahrenheit, Kelvin and Rankine — exact affine formulas (°F = °C × 1.8 + 32; K = °C + 273.15) and a common-temperature reference table.
TemperatureCelsius → Fahrenheit
TemperatureFahrenheit → Celsius
TemperatureCelsius → Kelvin
TemperatureKelvin → Celsius
TemperatureFahrenheit → Kelvin
TemperatureKelvin → Fahrenheit
TemperatureCelsius → Rankine
TemperatureRankine → Celsius
Energy & work converters
Energy & Work Converter
Joules, kilojoules, kWh, calories, kilocalories, BTU, foot-pounds, newton-metres and MeV — convert kJ → kWh, J → Nm, ft-lb → Nm and more. Exact factors.
EnergyFoot-pound → Newton-metre
EnergyJoule → Newton-metre
EnergyKilojoule → Kilowatt-hour
EnergyKilowatt-hour → Joule
EnergyMegaelectronvolt → Kilowatt-hour
EnergyMegajoule → Foot-pound
EnergyMegajoule → Newton-metre
EnergyKilojoule → Kilocalorie
Number, text & data conversions
Dev & Data Converters
Hex/decimal/binary/octal number bases, text ↔ binary/hex/ASCII, and CSV ↔ JSON / JSON → HTML — all in your browser.
Number baseBinary → Decimal
Number baseBinary → Hexadecimal
Number baseDecimal → Binary
Number baseDecimal → Hexadecimal
Number baseHexadecimal → Binary
Number baseHexadecimal → Decimal
TextText to Binary
TextBinary to ASCII
TextText to Hex
TextHex to String
DataCSV to JSON
DataJSON to CSV
DataJSON to HTML
DataXML to CSV
DataCSV to XML
DataXML to JSON
DataJSON to XML
Developer
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text instantly — runs entirely in your browser, nothing is uploaded.
DeveloperJSON Formatter & Validator
Format, validate and minify JSON in your browser. Pretty-print with 2/4-space or tab indent, catch errors with the exact line and column, then copy or download — nothing is uploaded.
DeveloperUnix Timestamp Converter
Convert a Unix timestamp (epoch) to a human date and back — seconds or milliseconds, UTC / ISO 8601 / local / relative output, with a live current-epoch clock. Runs in your browser.
DeveloperURL Encode / Decode
Percent-encode or decode URLs and URL components in your browser, with component vs full-URI mode and correct UTF-8 handling — nothing is uploaded.
DeveloperSHA Hash Generator
Generate SHA-1, SHA-256, SHA-384 and SHA-512 hashes of any text live, using the browser’s native Web Crypto API — accurate, private, nothing uploaded.