What is Unicode?
Unicode is the character encoding standard that assigns a unique code point to every character across the world’s writing systems, along with rules for their properties and behaviour. It is maintained by the Unicode Consortium.
Primary sources
Specifications cited by the tools below whose own titles define Unicode.
12 tools that work with Unicode
Files never leave your browser.
Text Tools5
Fancy Text GeneratorConvert text into bold, italic, script, monospace and double-struck Unicode styles.Glitch Text GeneratorCreate corrupted Zalgo-style glitch text using stacked Unicode combining marks.String Byte Size CalculatorMeasure text in UTF-8, UTF-16 and UTF-32 bytes, code points and grapheme clusters.Text CleanerStrip smart quotes, invisible characters, ligatures and stray whitespace pasted from Word or a PDF.Upside Down Text GeneratorFlip text upside down using Unicode look-alike characters, readable when rotated 180°.
Encoders & Decoders3
Unicode ConverterConvert text between code points, UTF-8, UTF-16, HTML entities and escape sequences.Unicode Escape ConverterConvert characters to \u escape sequences and back — for JSON, JavaScript and source code.UTF-8 Byte InspectorSee exactly how text is encoded — code points, UTF-8 bytes, names and byte counts per character.
AI & LLM Tools2
Invisible Character DetectorFind zero-width spaces, directional overrides, Unicode tag characters and homoglyphs hidden in pasted text — then strip them.Prompt Injection SanitizerStrip invisible carriers, neutralise instruction-like markup and fence untrusted content before you paste it into a prompt.
Related terms
Terms that appear alongside Unicode on the same tools.