Encoding Guides & Tutorials
3 Encoding guides and tutorials - practical usage, common errors and worked examples.
3 guides in this category
Invisible Characters: URL Encoding, Entities, Fullwidth
Text that looks identical but fails validation is usually a fullwidth digit, a twice-decoded entity, a plus sign in a URL, or a dollar sign in a replacement.
Binary, Hex and Full-Width Characters: A Practical Guide
Convert between binary, octal, hex and decimal, and find the full-width characters that break password checks and text search.
How to Encode and Decode Base64 (and Fix Mojibake)
Decode Base64 without the usual traps: why output grows about 33%, when URL-safe Base64 is mandatory, how to read a JWT payload, and how to fix garbled text.
Tools in this category
Encode and decode Base64 text with UTF-8 support; use the image tool for files
Open tool →URL Encode/DecodeRFC 3986 URL percent-encoding
Open tool →Unicode ConverterConvert Chinese to/from \uXXXX escape sequences
Open tool →HTML Entity EscapeConvert < > & HTML entities
Open tool →Base ConverterConvert between base 2, 8, 10, 16, 36 and 64 in real time
Open tool →Full/Half WidthConvert full-width characters to half-width and vice versa
Open tool →