Glossary

Learn what a JSON formatter is, how it works, and why developers use it to pretty-print and validate JSON data.

Understand what a PDF compressor does, how it reduces file sizes, and when you should use one for your documents.

Learn what a word counter is, how it works, and why writers, students, and professionals use word counting tools.

Discover what a QR code is, how it works, and the many ways QR codes are used for linking physical and digital worlds.

Learn what Base64 encoding is, how it works, and why it is used for transmitting binary data over text-based systems.

Understand what a hash function is, how it creates fixed-size fingerprints from input data, and its uses in security and integrity.

Learn what Body Mass Index (BMI) is, how it is calculated, and what the results mean for assessing weight categories.

Understand compound interest, how it differs from simple interest, and why it is called the eighth wonder of the world.