Web & Developer

Format JSON, build QR codes, convert number bases and generate sample data. Small developer utilities that run offline in your browser.

Data Storage Converter Bytes, KB, MB, GB, TB and the binary KiB, MiB, GiB units. Number Base Converter Binary, octal, decimal and hexadecimal in one conversion.

Finance Calculators Health & Fitness Date & Time Fun & Curious Text Tools Unit Converters Math & Education