Converters
Unit, currency, temperature, data, time-zone and number-base converters that meet international standards.
Length ConverterPopular
Convert metres, feet, miles, inches, km and more.
Weight ConverterPopular
Convert kilograms, pounds, ounces, stones and grams.
Temperature ConverterPopular
Convert Celsius, Fahrenheit and Kelvin instantly.
Area Converter
Convert square metres, acres, hectares and feet.
Volume Converter
Convert litres, gallons, cups, millilitres and more.
Speed Converter
Convert km/h, mph, m/s and knots.
Time Converter
Convert seconds, minutes, hours, days and weeks.
Data Storage Converter
Convert bytes, KB, MB, GB and TB.
Pressure Converter
Convert pascal, bar, psi and atmospheres.
Energy Converter
Convert joules, calories, kWh and BTU.
Power Converter
Convert watts, kilowatts and horsepower.
Angle Converter
Convert degrees, radians and gradians.
Fuel Economy Converter
Convert MPG, L/100km and km/L.
Number Base Converter
Convert between binary, octal, decimal and hex.
Roman ↔ Number
Convert Roman numerals to numbers and back.
JSON Formatter / Minifier
Beautify, minify and validate JSON.
CSV to JSON
Convert CSV data into structured JSON.
Color Converter
Convert HEX, RGB, HSL color values.
Unix Timestamp Converter
Convert Unix timestamps to human dates and back.
Base64 Encode / Decode
Encode and decode Base64 text safely.
Free Converters that just work
Toolinza offers 20 free converters that run entirely in your browser. There is no signup, no watermark and no limit — and because everything is processed locally, your data never leaves your device. Whether you are a professional, a student or just need something done quickly, these tools deliver accurate, standards-based results in seconds.