PureTools

Converters

Timestamp, colors, CSV, YAML, Markdown

Area Unit Converter

Convert between m², km², hectares, acres, ft², and mi² online.

Byte & Storage Unit Converter

Free online tool to convert between bytes, KB, MB, GB, TB, and PB. Supports both base 1000 and 1024 (binary).

Color Converter (HEX, RGB, HSL)

Free online color converter. Convert colors between HEX, RGB, and HSL with live preview. Copy values in any format.

CSV to JSON Converter

Free online CSV to JSON converter and vice versa. Handles fields with commas, quotes, and nested data.

CSV to JSON

Convert CSV to JSON online. Paste CSV data and get a JSON array of objects.

Fuel Cost Calculator

Free online fuel cost calculator for road trips. Enter distance, fuel consumption, and price to estimate total cost.

Gas vs Ethanol

Find out whether gasoline or ethanol is cheaper based on the 70% rule.

HTML to Markdown

Convert HTML to Markdown online.

Image to Base64 Converter

Free online tool to convert images (PNG, JPG, GIF) to Base64 data URI strings for embedding in HTML and CSS.

JSONPath Tester

Test JSONPath expressions against JSON data in real time.

JSON to CSV

Convert JSON to CSV online. Paste an array of objects and get a CSV file.

JSON to TypeScript Converter

Free online tool to convert JSON objects to TypeScript interfaces automatically. Paste JSON and get type definitions instantly.

JSON to XML

Convert JSON to XML online for free.

JSON to YAML Converter

Convert between JSON and YAML easily. Paste your JSON or YAML and get instant conversion.

Length Converter

Free online length converter. Convert between mm, cm, m, km, inches, feet, yards, and miles instantly.

Markdown to HTML

Convert Markdown to HTML online.

Number Base Converter

Free online tool to convert numbers between decimal, binary, octal, and hexadecimal instantly.

Number to Words Converter

Convert numbers to words. Supports Portuguese, English, and Spanish. Perfect for checks, contracts, and documents.

PX to REM Converter

Free online PX to REM converter and vice versa. Set a custom base font size for responsive CSS design.

Roman Numeral Converter

Free online Roman numeral converter. Convert between decimal numbers and Roman numerals (I, V, X, L, C, D, M).

SASS/SCSS to CSS

Convert basic SCSS to plain CSS by resolving variables and nesting.

Speed Unit Converter

Free online speed unit converter. Convert between km/h, mph, m/s, and knots instantly.

Temperature Converter

Free online temperature converter. Convert between Celsius, Fahrenheit, and Kelvin instantly.

Text to Binary Converter

Free online text to binary converter. Convert text to binary (UTF-8) and decode binary back to text.

Time Unit Converter

Free online time unit converter. Convert between seconds, minutes, hours, days, weeks, months, and years.

TypeScript to JavaScript

Strip TypeScript types and annotations to get plain JavaScript.

All-in-One Unit Converter

Free online unit converter for length, weight, temperature, speed, area, volume, time, and data storage.

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and back. See the current timestamp in real time.

Weight & Mass Converter

Free online weight converter. Convert between milligrams, grams, kilograms, pounds, ounces, and tons.

XML to JSON

Convert XML to JSON online for free.