Free Online Tools

Your public IP address and geolocation

What your browser reveals about you

Identify vendor from MAC address OUI prefix

Look up Bluetooth Company ID (e.g. 0x004C = Apple)

Frequency ↔ wavelength for antenna design

Find mobile network operators by country

Reduce file size without visible quality loss

Change dimensions for web or social media

PNG, JPG, WebP and more

Trim and reframe your photos

Length, weight, volume and more

°C, °F, Kelvin — instant conversion

Live exchange rates worldwide

HEX, RGB, HSL and CSS values

Combine multiple PDFs into one

Extract pages from a PDF

Shrink PDFs for email or upload

Encode or decode Base64 strings

Count words, characters and sentences

UPPER, lower, Title, camelCase and more

Generate placeholder text instantly

Remove duplicate lines from lists

Beautify and validate JSON

Encode or decode URL strings

SHA-1, SHA-256, SHA-512 hashes

Strong, random passwords on demand

Tip, discount, tax — fast

Standard scientific calculator

Printable grade 3–5 math reference sheets

Convert numbers to Roman numerals

Body mass index in metric or imperial

Exact age from any birth date