Converters Tools — 37 free tools

Free Online Converters

Convert between units, formats, and systems in one click: length, weight, and area units, currencies at live rates, time zones, number bases, Roman numerals, cooking measurements, clothing and shoe sizes.

Each converter is built for its specific job — so the height converter shows feet-and-inches the way people actually write them, the time zone converter handles DST correctly, and the unit converters carry enough decimal precision for engineering use.

For unit pairs people search most — like cm to inches or square meters to square feet — there are dedicated quick pages with conversion tables you can scan without typing anything.

Most used converters tools

Convert common weight, length, volume, area, and temperature units instantly.

Currency Converter (Live Rates)

Convert between USD, INR, EUR, GBP, JPY and 30+ currencies with live exchange rates.

Height Converter (cm ↔ feet)

Convert height between centimeters and feet + inches both ways, with a full height chart.

Base Converter (Dec / Bin / Hex / Oct)

Convert numbers between decimal, binary, hexadecimal, and octal — all four at once.

Roman Numeral Converter

Convert numbers to Roman numerals and Roman numerals to numbers.

All converters tools

QR Code Generator

Make QR codes for URLs, Wi‑Fi, WhatsApp, contact cards, maps, events, files, and more.

JPG to PDF Converter Online

Convert JPG, PNG, WebP, and photo files into a single ordered PDF in your browser.

PDF to JPG Converter Online

Export PDF pages as high-resolution JPG images in your browser for previews, uploads, and thumbnails.

Base64 Encode/Decode

Encode text to Base64 or decode Base64 back to readable text.

URL Encode/Decode

Encode URLs for query strings or decode percent-encoded URL text.

JSON Formatter & Toolkit

Validate, format, minify, repair, query, diff, and convert JSON — all from a single editor.

Convert simple CSV rows into JSON objects using the first row as headers.

Convert an array of JSON objects into CSV rows with headers.

RGB to HEX Converter

Convert HEX colors to RGB or RGB colors back to HEX.

Unix Timestamp Converter

Convert Unix timestamps to readable dates and dates back to Unix time.

Text to Binary Converter

Convert readable text to binary bytes or binary back to text.

Validate JSON, see parse errors, and copy formatted output.

Decode JWT Token Online Safely

Decode JWT headers and payloads locally in your browser, inspect claims, and verify HMAC signatures when you have the secret.

YAML to JSON Browser Converter

Convert YAML to JSON or JSON to YAML locally in your browser without uploading config files, secrets, or CI snippets.

Minify JSON to the smallest possible size for APIs and config files.

XML to JSON Converter

Convert XML documents into clean JSON objects.

Test regular expressions live with match highlighting, groups, and replace preview.

Bulk UUID v4 Generator for Testing

Generate UUID v4 and GUID values in bulk using browser crypto for tests, mock data, primary keys, and API fixtures.

Cron Expression Reader in Plain English

Paste a five-field cron expression, read the schedule in plain English, and check the next 5 run times.

SQL Formatter & Beautifier

Format messy SQL into clean, readable queries — or minify for embedding.

HTML Minifier & Beautifier

Minify HTML for production or beautify ugly HTML for reading.

CSS Minifier & Beautifier

Minify CSS to ship smaller stylesheets or beautify for reading.

JavaScript Minifier & Beautifier

Minify or beautify JavaScript for production or debugging.

Markdown to HTML Converter

Convert Markdown to clean HTML with live preview.

HTML to Markdown Converter

Strip HTML to clean Markdown — useful for moving content into docs or static sites.

User-Agent Parser

Parse browser user-agent strings into browser, OS, device, and engine.

HTTP Status Code Lookup

Search and learn every HTTP status code from 100 to 599.

Number to Words Converter

Convert numbers to words in Indian (lakh / crore) or international format.

Cooking Unit Converter

Convert cups, tablespoons, ml, oz, °C, °F, and gas marks.

Shoe Size Converter (US / UK / EU)

Convert between US, UK, EU, and centimeter shoe sizes for men and women.

Clothing Size Converter

Convert between US, UK, EU, India, and letter sizes (XS-3XL) for men and women.

Military Time Converter

Convert military (24-hour) time to standard 12-hour time and back, with a full conversion chart.

Common questions

How accurate are the unit conversions?

Conversion factors use the official definitions (for example 1 inch = 2.54 cm exactly) and carry full floating-point precision; display rounding is configurable on most converters.

Where do live currency rates come from?

The currency converter fetches current mid-market rates from a public exchange-rate API each time you use it.

Is there a single converter for all units?

Yes — the universal unit converter covers length, weight, temperature, area, volume, and speed in one tool, while dedicated pages exist for the most common pairs.

Browse other categories

PDF Tools Image Tools Calculators Text Tools Utilities