# SymbolFYI.com — Full Content Index

> Practical symbol reference: ~5,000 curated Unicode symbols, 30 categories, 25 collections, 84 glossary terms, 72 guides, and 6 interactive tools.

## URL Patterns

- /symbol/{slug}/ — Symbol detail (e.g., /symbol/check-mark/)
- /char/U+{codepoint}/ — Symbol by codepoint (e.g., /char/U+2713/)
- /category/ — All categories
- /category/{slug}/ — Category detail (e.g., /category/arrows/)
- /collection/ — All collections
- /collection/{slug}/ — Collection detail
- /block/{slug}/ — Unicode block detail
- /glossary/ — Unicode & typography glossary (84 terms)
- /glossary/{slug}/ — Term detail
- /guides/ — In-depth guides (72 articles)
- /guides/{slug}/ — Guide detail
- /guides/series/{slug}/ — Guide series
- /guides/category/{slug}/ — Guide category
- /tools/ — Interactive tools
- /tools/{slug}/ — Tool detail
- /search/?q={query} — Symbol search

## JSON API

- GET /api/symbol/{slug}/ → Full symbol info (encodings, properties)
- GET /api/search/?q={query} → Search symbols
- GET /api/category/{slug}/ → Category symbols

## Categories

- [→ Arrows](https://symbolfyi.com/category/arrows/)
- [∑ Math Symbols](https://symbolfyi.com/category/math/)
- [€ Currency Signs](https://symbolfyi.com/category/currency/)
- [… Punctuation](https://symbolfyi.com/category/punctuation/)
- [✓ Check Marks](https://symbolfyi.com/category/checkmarks/)
- [✗ Crosses & X Marks](https://symbolfyi.com/category/crosses/)
- [★ Stars & Asterisks](https://symbolfyi.com/category/stars/)
- [♥ Hearts](https://symbolfyi.com/category/hearts/)
- [◆ Geometric Shapes](https://symbolfyi.com/category/geometric/)
- [● Circles & Dots](https://symbolfyi.com/category/circles/)
- [│ Lines & Bars](https://symbolfyi.com/category/lines-bars/)
- [【 Brackets & Braces](https://symbolfyi.com/category/brackets/)
- [「 Quotation Marks](https://symbolfyi.com/category/quotation-marks/)
- [— Dashes & Hyphens](https://symbolfyi.com/category/dashes/)
- [© Legal & Copyright](https://symbolfyi.com/category/legal/)
- [² Superscript & Subscript](https://symbolfyi.com/category/superscript-subscript/)
- [½ Fractions](https://symbolfyi.com/category/fractions/)
- [① Enclosed Numbers](https://symbolfyi.com/category/numbers/)
- [Ⅶ Roman Numerals](https://symbolfyi.com/category/roman-numerals/)
- [♫ Music Symbols](https://symbolfyi.com/category/music/)
- [☀ Weather](https://symbolfyi.com/category/weather/)
- [♈ Zodiac & Astrology](https://symbolfyi.com/category/zodiac/)
- [♠ Chess & Cards](https://symbolfyi.com/category/chess-cards/)
- [⌘ Technical](https://symbolfyi.com/category/technical/)
- [⌨ Keyboard](https://symbolfyi.com/category/keyboard/)
- [╔ Box Drawing](https://symbolfyi.com/category/box-drawing/)
- [█ Block Elements](https://symbolfyi.com/category/block-elements/)
- [⠿ Braille](https://symbolfyi.com/category/braille/)
- [α Greek Letters](https://symbolfyi.com/category/greek/)
- [ñ Latin Extended](https://symbolfyi.com/category/latin-extended/)

## Collections

- [Most Popular Symbols](https://symbolfyi.com/collection/popular/)
- [All Arrow Symbols](https://symbolfyi.com/collection/all-arrows/)
- [Check Marks & Ticks](https://symbolfyi.com/collection/checkmarks-and-ticks/)
- [Currency Signs](https://symbolfyi.com/collection/currency-signs/)
- [Math Operators](https://symbolfyi.com/collection/math-operators/)
- [Stars & Ratings](https://symbolfyi.com/collection/stars-and-ratings/)
- [Heart Symbols](https://symbolfyi.com/collection/heart-symbols/)
- [Music Notes](https://symbolfyi.com/collection/music-notes/)
- [Weather Icons](https://symbolfyi.com/collection/weather-icons/)
- [Legal Symbols](https://symbolfyi.com/collection/legal-symbols/)
- [Greek Alphabet](https://symbolfyi.com/collection/greek-alphabet/)
- [Roman Numerals](https://symbolfyi.com/collection/roman-numerals/)
- [Fraction Symbols](https://symbolfyi.com/collection/fractions/)
- [Superscript & Subscript](https://symbolfyi.com/collection/super-subscript/)
- [Enclosed Characters](https://symbolfyi.com/collection/enclosed-characters/)
- [Braille Patterns](https://symbolfyi.com/collection/braille-patterns/)
- [Geometric Shapes](https://symbolfyi.com/collection/geometric-shapes/)
- [Decorative Symbols](https://symbolfyi.com/collection/decorative/)
- [Text Emoticons](https://symbolfyi.com/collection/text-faces/)
- [Programming Symbols](https://symbolfyi.com/collection/programming/)
- [Bullets & List Markers](https://symbolfyi.com/collection/bullets-and-lists/)
- [Line Drawing](https://symbolfyi.com/collection/line-drawing/)
- [Phonetic Symbols](https://symbolfyi.com/collection/phonetic/)
- [Card Suits & Dice](https://symbolfyi.com/collection/card-suits/)
- [Invisible Characters](https://symbolfyi.com/collection/invisible-characters/)

## Glossary Terms

- [ARIA Label](https://symbolfyi.com/glossary/aria-label/) — An HTML attribute providing accessible names for elements, critical for making symbol-heavy UIs usable with screen readers.
- [ASCII](https://symbolfyi.com/glossary/ascii/) — American Standard Code for Information Interchange — a 7-bit encoding for 128 characters including English letters, digits, and control characters.
- [Alt Code](https://symbolfyi.com/glossary/alt-code/) — A method on Windows to type characters by holding Alt and entering a numeric code on the numpad (e.g., Alt+0169 for ©).
- [Alt Text for Symbols](https://symbolfyi.com/glossary/alt-text-symbols/) — Best practices for providing accessible text alternatives for decorative and meaningful symbol characters.
- [Basic Multilingual Plane (BMP)](https://symbolfyi.com/glossary/bmp/) — The first 65,536 code points of Unicode (U+0000 to U+FFFF), containing the most commonly used characters.
- [Bidirectional Text (Bidi)](https://symbolfyi.com/glossary/bidirectional-text/) — Text that mixes left-to-right and right-to-left writing directions, requiring the Unicode Bidirectional Algorithm for proper display.
- [Box Drawing Characters](https://symbolfyi.com/glossary/box-drawing/) — Unicode characters (U+2500–U+257F) designed to draw boxes and tables in text-based interfaces and terminal emulators.
- [Braille Patterns](https://symbolfyi.com/glossary/braille-patterns/) — 256 Unicode characters (U+2800–U+28FF) representing all possible combinations of 8-dot Braille cells.
- [Bullet Character](https://symbolfyi.com/glossary/bullet/) — A typographic symbol (•, U+2022) used for list items and decorative purposes in text.
- [Byte Order Mark (BOM)](https://symbolfyi.com/glossary/byte-order-mark/) — A special Unicode character (U+FEFF) at the start of a file indicating its byte order and encoding format.
- [CJK](https://symbolfyi.com/glossary/cjk/) — Abbreviation for Chinese, Japanese, and Korean — refers to the unified set of ideographic characters shared across these writing systems.
- [CSS content Property](https://symbolfyi.com/glossary/css-content/) — A CSS property that inserts content before or after an element, commonly used with Unicode escape sequences (e.g., content: '\2713').
- [Character Reference](https://symbolfyi.com/glossary/character-reference/) — An HTML markup for inserting characters by number (☃ or ☃) or name (©), used for special or reserved characters.
- [Character Set (Charset)](https://symbolfyi.com/glossary/charset/) — A defined set of characters recognized by a computing system. Often used interchangeably with 'encoding' though technically different.
- [Code Point](https://symbolfyi.com/glossary/code-point/) — A numerical value in the Unicode standard that maps to a specific character, written as U+ followed by hexadecimal digits (e.g., U+0041 for 'A').
- [Code Point vs Character vs Glyph](https://symbolfyi.com/glossary/codepoint-vs-character/) — Understanding the three abstraction levels: a code point (number), a character (abstract), and a glyph (visual rendering).
- [Combining Character](https://symbolfyi.com/glossary/combining-character/) — A Unicode character that modifies the preceding base character, such as accents and diacritical marks.
- [Common Locale Data Repository (CLDR)](https://symbolfyi.com/glossary/cldr/) — A project providing locale-specific formatting rules for dates, currencies, and language names used worldwide.
- [Compose Key](https://symbolfyi.com/glossary/compose-key/) — A key on Linux/Unix systems that starts a multi-key sequence to produce special characters (e.g., Compose + c + o → ©).
- [Confusables (Homoglyphs)](https://symbolfyi.com/glossary/confusables/) — Characters that look similar or identical but have different code points (e.g., Latin 'A' U+0041 vs Cyrillic 'А' U+0410).
- [Curly Quotes (Smart Quotes)](https://symbolfyi.com/glossary/curly-quotes/) — Typographically correct quotation marks (“ ” ‘ ’) as opposed to straight/typewriter quotes (" ').
- [Dead Keys](https://symbolfyi.com/glossary/dead-keys/) — Keyboard keys that don't produce a character immediately but modify the next keystroke (e.g., ´ then e → é).
- [Diacritical Mark](https://symbolfyi.com/glossary/diacritical-mark/) — A mark added to a letter to change its pronunciation or meaning (e.g., acute accent é, umlaut ü, tilde ñ).
- [Ellipsis](https://symbolfyi.com/glossary/ellipsis/) — A single character (…, U+2026) representing three dots, preferred over typing three periods.
- [Em Dash](https://symbolfyi.com/glossary/em-dash/) — A typographic dash (—, U+2014) the width of a letter M, used for parenthetical statements and breaks in thought.
- [Emoji](https://symbolfyi.com/glossary/emoji/) — Pictographic symbols defined in Unicode, originally from Japanese mobile phones, now a universal visual communication system.
- [En Dash](https://symbolfyi.com/glossary/en-dash/) — A typographic dash (–, U+2013) the width of a letter N, used for ranges (e.g., 1–10) and relationships.
- [Encoding Detection](https://symbolfyi.com/glossary/encoding-detection/) — Techniques for detecting the character encoding of text files, including BOM sniffing, heuristics, and chardet libraries.
- [Font Fallback](https://symbolfyi.com/glossary/font-fallback/) — A mechanism where the browser uses alternative fonts when the primary font lacks a glyph for a character.
- [Fullwidth & Halfwidth](https://symbolfyi.com/glossary/fullwidth/) — Character variants occupying different widths in CJK typography. Fullwidth characters occupy the same space as CJK ideographs.
- [General Category](https://symbolfyi.com/glossary/general-category/) — A Unicode property that classifies each character (e.g., Lu = Uppercase Letter, Sm = Math Symbol, So = Other Symbol).
- [Glyph](https://symbolfyi.com/glossary/glyph/) — The visual representation of a character as rendered by a specific font. One character can have multiple glyphs across different fonts.
- [Grapheme Cluster](https://symbolfyi.com/glossary/grapheme-cluster/) — A user-perceived character that may consist of multiple code points (e.g., a base character + combining marks, or a flag emoji).
- [Grapheme Segmentation (UAX #29)](https://symbolfyi.com/glossary/grapheme-segmentation/) — The Unicode algorithm for splitting text into user-perceived characters, handling emoji sequences, combining marks, etc.
- [HTML Entity](https://symbolfyi.com/glossary/html-entity/) — A string that begins with & and ends with ; used to display reserved or special characters in HTML (e.g., & for &, © for ©).
- [IDN Homograph Attack](https://symbolfyi.com/glossary/idn-homograph/) — A phishing technique using visually similar Unicode characters in domain names to impersonate legitimate sites.
- [Input Method Editor (IME)](https://symbolfyi.com/glossary/input-method-editor/) — Software that enables typing characters not directly available on a keyboard, essential for CJK, Arabic, and other complex scripts.
- [Internationalized Domain Name (IDN)](https://symbolfyi.com/glossary/idn/) — A domain name containing non-ASCII characters, encoded via Punycode for DNS compatibility (e.g., münchen.de → xn--mnchen-3ya.de).
- [JavaScript String & Code Points](https://symbolfyi.com/glossary/js-string-codepoint/) — JS String methods for Unicode: codePointAt(), String.fromCodePoint(), and the spread operator for grapheme iteration.
- [Kerning](https://symbolfyi.com/glossary/kerning/) — The adjustment of spacing between specific character pairs for improved visual appearance (e.g., AV, To).
- [Latin-1 (ISO 8859-1)](https://symbolfyi.com/glossary/latin-1/) — A single-byte encoding for Western European languages covering 256 characters (U+0000–U+00FF).
- [Letter Spacing (Tracking)](https://symbolfyi.com/glossary/tracking/) — Uniform adjustment of space between all characters in a block of text, distinct from kerning.
- [Ligature](https://symbolfyi.com/glossary/ligature/) — A single glyph combining two or more characters (e.g., fi, fl). Can be typographic (font feature) or Unicode characters.
- [Mathematical Alphanumeric Symbols](https://symbolfyi.com/glossary/mathematical-alphanumeric/) — Unicode block (U+1D400–U+1D7FF) containing styled letters and digits used in mathematical notation (bold, italic, script, etc.).
- [Mojibake](https://symbolfyi.com/glossary/mojibake/) — Garbled text that results from decoding data with the wrong character encoding. Common when mixing Latin-1 and UTF-8.
- [Non-Breaking Space](https://symbolfyi.com/glossary/non-breaking-space/) — A space character (U+00A0) that prevents automatic line breaking at its position, keeping adjacent words together.
- [Private Use Area](https://symbolfyi.com/glossary/private-use-area/) — Ranges of Unicode code points (U+E000–U+F8FF, etc.) reserved for custom characters defined by font vendors or applications.
- [Punycode](https://symbolfyi.com/glossary/punycode/) — An encoding syntax for representing Unicode strings with ASCII characters, used in Internationalized Domain Names.
- [Python unicodedata Module](https://symbolfyi.com/glossary/python-unicodedata/) — Python standard library module for looking up Unicode character names, categories, and properties.
- [Regex Unicode Support](https://symbolfyi.com/glossary/regex-unicode/) — Using Unicode-aware regular expressions with flags like /u in JS and re.UNICODE in Python.
- [Replacement Character](https://symbolfyi.com/glossary/replacement-character/) — The diamond-question mark character (U+FFFD, �) displayed when a decoder encounters an invalid or unrecognizable byte sequence.
- [Screen Reader](https://symbolfyi.com/glossary/screen-reader/) — Assistive technology that reads text and UI elements aloud. Unicode character names are used for symbol pronunciation.
- [Script](https://symbolfyi.com/glossary/script/) — A Unicode property indicating which writing system a character belongs to (e.g., Latin, Greek, Common, Inherited).
- [Soft Hyphen](https://symbolfyi.com/glossary/soft-hyphen/) — An invisible character (U+00AD) that marks where a word may be hyphenated at a line break. Invisible otherwise.
- [String Length vs Character Count](https://symbolfyi.com/glossary/string-length-unicode/) — Why str.length in JavaScript returns UTF-16 code units, not visual characters — and how to count graphemes correctly.
- [Surrogate Pair](https://symbolfyi.com/glossary/surrogate-pair/) — A pair of 16-bit code units in UTF-16 that together represent a single character outside the Basic Multilingual Plane (above U+FFFF).
- [Tofu (Missing Glyph)](https://symbolfyi.com/glossary/tofu/) — The empty rectangle (□) displayed when a font cannot render a character, named for its tofu-like appearance.
- [URL Encoding (Percent-Encoding)](https://symbolfyi.com/glossary/url-encoding/) — A method of encoding special characters in URLs by replacing them with % followed by two hex digits of their UTF-8 byte values.
- [UTF-16](https://symbolfyi.com/glossary/utf-16/) — A character encoding that uses 2 or 4 bytes per character. Used internally by JavaScript and Java.
- [UTF-32](https://symbolfyi.com/glossary/utf-32/) — A fixed-width encoding using 4 bytes per character, simple but memory-intensive.
- [UTF-8](https://symbolfyi.com/glossary/utf-8/) — A variable-width character encoding that uses 1 to 4 bytes to represent Unicode code points. The dominant encoding on the web.
- [Unicode](https://symbolfyi.com/glossary/unicode/) — A universal character encoding standard that assigns a unique number (code point) to every character across all writing systems.
- [Unicode Block](https://symbolfyi.com/glossary/unicode-block/) — A contiguous range of code points defined by the Unicode standard, grouping related characters (e.g., 'Arrows' block: U+2190–U+21FF).
- [Unicode Collation](https://symbolfyi.com/glossary/collation/) — Sorting text according to language-specific rules using the Unicode Collation Algorithm (UCA, UTS #10).
- [Unicode Consortium](https://symbolfyi.com/glossary/unicode-consortium/) — The non-profit organization that develops and maintains the Unicode Standard, adding new characters in annual releases.
- [Unicode Escape Sequence](https://symbolfyi.com/glossary/unicode-escape/) — A way to represent characters by their code point in programming languages (\u2603 in JS/Java, \u{2603} in ES6+, \U00002603 in Python).
- [Unicode Hex Input](https://symbolfyi.com/glossary/unicode-hex-input/) — A macOS keyboard layout that allows typing characters by their hex code point (hold Option + type hex code).
- [Unicode Normalization](https://symbolfyi.com/glossary/normalization/) — The process of converting Unicode text to a standard form (NFC, NFD, NFKC, NFKD) to ensure consistent comparison and storage.
- [Unicode Plane](https://symbolfyi.com/glossary/plane/) — A group of 65,536 consecutive code points. Unicode has 17 planes (0–16), with Plane 0 being the BMP.
- [Unicode Property Escapes (\p{})](https://symbolfyi.com/glossary/unicode-property-escapes/) — Regex syntax (\p{Script=Greek}, \p{Letter}) that matches characters by Unicode properties. Supported in JS, Java, Python 3.8+.
- [Unicode Sandwich Pattern](https://symbolfyi.com/glossary/unicode-sandwich/) — A programming best practice: decode bytes → process text as Unicode → encode bytes. Keeps Unicode in the middle.
- [Unicode Version](https://symbolfyi.com/glossary/unicode-version/) — Numbered releases of the Unicode Standard (e.g., 16.0), each adding new characters, scripts, and emoji.
- [Unicode in URLs & IRIs](https://symbolfyi.com/glossary/unicode-in-urls/) — How Unicode characters in URLs are handled: IRI (RFC 3987), percent-encoding of UTF-8 bytes, and browser display.
- [Unihan Database](https://symbolfyi.com/glossary/unihan/) — A comprehensive database of CJK ideographs with readings, meanings, and variant information maintained by the Unicode Consortium.
- [Variation Selector](https://symbolfyi.com/glossary/variation-selector/) — Unicode characters (U+FE00–U+FE0F) that modify the appearance of the preceding character, including text vs emoji presentation.
- [WCAG Text Alternatives](https://symbolfyi.com/glossary/wcag-text-alternatives/) — WCAG 1.1.1 guideline requiring text alternatives for non-text content including symbols and icons.
- [Web Fonts (@font-face)](https://symbolfyi.com/glossary/web-fonts/) — Custom fonts loaded via CSS @font-face rules, enabling rich typography beyond system-installed fonts.
- [Whitespace Characters](https://symbolfyi.com/glossary/whitespace/) — Characters that represent horizontal or vertical space (space, tab, newline, etc.) but have no visible glyph.
- [Windows Emoji Panel](https://symbolfyi.com/glossary/emoji-panel-windows/) — A Windows utility (Win+. or Win+;) for browsing and inserting emoji and special characters.
- [Windows-1252](https://symbolfyi.com/glossary/windows-1252/) — A superset of Latin-1 used by default in legacy Windows applications, with extra characters in the 0x80–0x9F range.
- [Zero-Width Joiner (ZWJ)](https://symbolfyi.com/glossary/zwj/) — An invisible character (U+200D) that joins adjacent characters, commonly used in emoji sequences to create combined emoji.
- [Zero-Width Space](https://symbolfyi.com/glossary/zero-width-space/) — An invisible Unicode character (U+200B) that indicates a possible line break point without displaying any visible space.
- [macOS Character Viewer](https://symbolfyi.com/glossary/character-viewer-macos/) — A built-in macOS utility (Ctrl+Cmd+Space) for browsing and inserting Unicode characters and emoji.
- [unicode-range (CSS)](https://symbolfyi.com/glossary/unicode-range/) — A CSS descriptor that specifies the range of Unicode code points a web font covers, enabling font subsetting.

## Guide Series

### Unicode Deep Dive
- [What Is Unicode? The Universal Character Standard Explained](https://symbolfyi.com/guides/unicode-what-is-unicode/)
- [Unicode Planes and Blocks: How 1.1 Million Code Points Are Organized](https://symbolfyi.com/guides/unicode-planes-and-blocks/)
- [Unicode Encodings Explained: UTF-8, UTF-16, and UTF-32 Compared](https://symbolfyi.com/guides/unicode-encodings-explained/)
- [Unicode Normalization: NFC, NFD, NFKC, and NFKD Explained](https://symbolfyi.com/guides/unicode-normalization-guide/)
- [Unicode Properties and Categories: Classifying Every Character](https://symbolfyi.com/guides/unicode-properties-categories/)
- [Bidirectional Text in Unicode: How RTL and LTR Scripts Coexist](https://symbolfyi.com/guides/unicode-bidirectional-text/)
- [How Emoji Work in Unicode: From Code Points to Skin Tones](https://symbolfyi.com/guides/unicode-emoji-how-they-work/)
- [CJK Unification: How Unicode Handles Chinese, Japanese, and Korean](https://symbolfyi.com/guides/unicode-cjk-unification/)
- [Unicode Version History: From 1.0 to 16.0 and Beyond](https://symbolfyi.com/guides/unicode-version-history/)
- [Unicode CLDR: The Database Behind Every Localized App](https://symbolfyi.com/guides/unicode-cldr-localization/)

### Symbol Showdown
- [En Dash vs Em Dash: When to Use – and —](https://symbolfyi.com/guides/en-dash-vs-em-dash/)
- [Curly Quotes vs Straight Quotes: Typography's Most Common Mix-Up](https://symbolfyi.com/guides/curly-quotes-vs-straight/)
- [Ellipsis (…) vs Three Dots (...): One Character or Three?](https://symbolfyi.com/guides/ellipsis-vs-three-dots/)
- [Multiplication Sign (×) vs Letter X: Spot the Difference](https://symbolfyi.com/guides/multiplication-vs-letter-x/)
- [Minus vs Hyphen vs Dash: Five Characters That Look Like a Line](https://symbolfyi.com/guides/minus-vs-hyphen-vs-dash/)
- [Zero vs Letter O: Unicode Confusables and Homograph Attacks](https://symbolfyi.com/guides/zero-vs-o-confusables/)
- [Space Characters in Unicode: 20+ Invisible Characters Compared](https://symbolfyi.com/guides/space-characters-guide/)
- [Bullet (•) vs Middle Dot (·): Small Dots, Big Differences](https://symbolfyi.com/guides/bullet-vs-middle-dot/)

### Symbols for Developers
- [HTML Entities: The Complete Guide to Character References](https://symbolfyi.com/guides/html-entities-complete-guide/)
- [CSS Content Property: Using Unicode Symbols in Stylesheets](https://symbolfyi.com/guides/css-symbols-content-property/)
- [Unicode-Aware Regex: Property Escapes and Multilingual Patterns](https://symbolfyi.com/guides/unicode-regex-guide/)
- [JavaScript and Unicode: Strings, Code Points, and Grapheme Clusters](https://symbolfyi.com/guides/javascript-unicode-strings/)
- [Python and Unicode: The Complete Developer's Guide](https://symbolfyi.com/guides/python-unicode-guide/)
- [Unicode in URLs: Percent-Encoding, Punycode, and IRIs](https://symbolfyi.com/guides/unicode-in-urls-complete/)
- [IDN Homograph Attacks: When Unicode Becomes a Security Threat](https://symbolfyi.com/guides/idn-homograph-attacks/)
- [Web Fonts and Unicode Subsetting: Loading Only What You Need](https://symbolfyi.com/guides/web-fonts-unicode-subsetting/)
- [Character Encoding Detection: How to Identify Unknown Text Encoding](https://symbolfyi.com/guides/encoding-detection-guide/)
- [Unicode Collation: How to Sort Text Correctly Across Languages](https://symbolfyi.com/guides/unicode-collation-sorting/)

### Keyboard Mastery
- [How to Type Special Characters on Mac: The Complete Guide](https://symbolfyi.com/guides/type-special-characters-mac/)
- [How to Type Special Characters on Windows: Alt Codes and Beyond](https://symbolfyi.com/guides/type-special-characters-windows/)
- [How to Type Special Characters on Linux: Compose Key and Unicode Input](https://symbolfyi.com/guides/type-special-characters-linux/)
- [Input Method Editors (IME): How CJK Text Input Works](https://symbolfyi.com/guides/input-method-editors-guide/)
- [Dead Keys: How to Type Accented Characters Without a Special Keyboard](https://symbolfyi.com/guides/dead-keys-accented-characters/)
- [Unicode Hex Input on macOS: Type Any Character by Code Point](https://symbolfyi.com/guides/unicode-hex-input-macos/)
- [Windows Alt Codes: Complete Reference for Special Characters](https://symbolfyi.com/guides/alt-codes-windows-reference/)

### History of Symbols
- [The History of ASCII: How 128 Characters Shaped Computing](https://symbolfyi.com/guides/history-of-ascii/)
- [The History of Unicode: From Babel to a Universal Character Set](https://symbolfyi.com/guides/history-of-unicode/)
- [The History of Emoji: From Japanese Pagers to Universal Language](https://symbolfyi.com/guides/history-of-emoji/)
- [The History of Typography Marks: From Gutenberg to Unicode](https://symbolfyi.com/guides/history-of-typography-marks/)
- [Braille in Unicode: How a Tactile System Became Digital Text](https://symbolfyi.com/guides/history-of-braille-unicode/)
- [Mathematical Notation in Unicode: From Clay Tablets to Code Points](https://symbolfyi.com/guides/history-of-math-notation/)

### Encoding Survival Guide
- [UTF-8: The Complete Guide to the Web's Dominant Encoding](https://symbolfyi.com/guides/utf8-complete-guide/)
- [Mojibake: Why Text Turns to Garbage and How to Fix It](https://symbolfyi.com/guides/mojibake-encoding-errors/)
- [Character Encoding Detection: How Browsers and Tools Guess Your Encoding](https://symbolfyi.com/guides/character-encoding-detection/)
- [UTF-16 and Surrogate Pairs: Why JavaScript Strings Are Complicated](https://symbolfyi.com/guides/utf16-surrogate-pairs/)
- [Legacy Encodings: Latin-1, Windows-1252, Shift-JIS, and When You Still Need Them](https://symbolfyi.com/guides/legacy-encodings-guide/)
- [Punycode and IDN: How Unicode Domain Names Work](https://symbolfyi.com/guides/punycode-idn-guide/)

### Accessibility & Symbols
- [How Screen Readers Handle Unicode Symbols and Emoji](https://symbolfyi.com/guides/screen-readers-unicode/)
- [ARIA and Unicode: Making Decorative Symbols Accessible](https://symbolfyi.com/guides/aria-unicode-symbols/)
- [WCAG and Special Characters: Meeting Accessibility Standards](https://symbolfyi.com/guides/wcag-special-characters/)
- [Accessible Emoji: How to Use Emoji Without Excluding Users](https://symbolfyi.com/guides/accessible-emoji-guide/)
- [Unicode Accessibility Checklist: 15 Checks for Inclusive Text](https://symbolfyi.com/guides/unicode-accessibility-checklist/)

### Typography for the Web
- [Ligatures in Web Typography: From fi to Modern OpenType Features](https://symbolfyi.com/guides/web-typography-ligatures/)
- [Whitespace Characters in Web Development: Beyond the Space Bar](https://symbolfyi.com/guides/whitespace-characters-web/)
- [CJK Web Typography: Chinese, Japanese, and Korean Text on the Web](https://symbolfyi.com/guides/cjk-web-typography/)
- [Box Drawing Characters: Building Text-Based UI with Unicode](https://symbolfyi.com/guides/box-drawing-characters/)
- [Font Fallback and Tofu: Why Characters Display as Empty Boxes](https://symbolfyi.com/guides/font-fallback-tofu/)

### Standalone Guides

- [Code Point vs Character vs Glyph: The Three Levels of Text](https://symbolfyi.com/guides/code-point-vs-character-vs-glyph/)
- [Diacritical Marks: Understanding Accents, Umlauts, and Combining Characters](https://symbolfyi.com/guides/diacritical-marks-guide/)
- [Grapheme Clusters: Why String Length Is More Complicated Than You Think](https://symbolfyi.com/guides/grapheme-clusters-explained/)
- [How to Use the SymbolFYI Character Analyzer](https://symbolfyi.com/guides/character-counter-guide/)
- [How to Use the SymbolFYI Encoding Converter](https://symbolfyi.com/guides/encoding-converter-guide/)
- [How to Use the SymbolFYI Fancy Text Generator](https://symbolfyi.com/guides/fancy-text-generator-guide/)
- [How to Use the SymbolFYI HTML Entity Finder](https://symbolfyi.com/guides/html-entity-finder-guide/)
- [How to Use the SymbolFYI String Length Calculator](https://symbolfyi.com/guides/string-length-calculator-guide/)
- [How to Use the SymbolFYI Symbol Search Tool](https://symbolfyi.com/guides/symbol-search-guide/)
- [How to Use the SymbolFYI Symbol Table Tool](https://symbolfyi.com/guides/symbol-table-tool-guide/)
- [How to Use the SymbolFYI Text Diff Tool](https://symbolfyi.com/guides/text-diff-tool-guide/)
- [How to Use the SymbolFYI Unicode Lookup Tool](https://symbolfyi.com/guides/unicode-lookup-guide/)
- [Mathematical Symbols in Unicode: A Complete Reference](https://symbolfyi.com/guides/mathematical-symbols-unicode/)
- [Soft Hyphen: Controlling Line Breaks in Web Typography](https://symbolfyi.com/guides/soft-hyphen-line-breaking/)
- [The Private Use Area: Custom Characters in Unicode](https://symbolfyi.com/guides/private-use-area-guide/)
- [Tofu: Why Characters Show as Empty Rectangles and How to Fix It](https://symbolfyi.com/guides/tofu-missing-glyphs/)
- [Variation Selectors: How Unicode Controls Text vs Emoji Display](https://symbolfyi.com/guides/variation-selectors-explained/)
- [What Is a Code Point? Understanding Unicode's U+ Notation](https://symbolfyi.com/guides/what-is-a-code-point/)

## i18n

All pages available in 15 languages. Prefix URL with language code:
- /ko/ (Korean)
- /ja/ (Japanese)
- /zh-hans/ (Chinese Simplified)
- /es/ (Spanish)
- /pt/ (Portuguese)
- /hi/ (Hindi)
- /ar/ (Arabic)
- /fr/ (French)
- /ru/ (Russian)
- /de/ (German)
- /tr/ (Turkish)
- /vi/ (Vietnamese)
- /id/ (Indonesian)
- /th/ (Thai)