ガイド
Tofu: Why Characters Show as Empty Rectangles and How to Fix It
Understand tofu — the empty rectangle that appears when your font can't display a character. Learn causes, diagnosis, and font fallback solutions.
Unicode Accessibility Checklist: 15 Checks for Inclusive Text
A practical 15-point checklist for Unicode accessibility — from decorative symbol hiding to language declaration, RTL support, and proper text alternatives.
Accessible Emoji: How to Use Emoji Without Excluding Users
Make emoji accessible — screen reader behavior, aria-label patterns, avoiding emoji overuse, social media accessibility, and cognitive considerations.
WCAG and Special Characters: Meeting Accessibility Standards
How WCAG success criteria apply to Unicode symbols — text alternatives, contrast requirements, and specific techniques for special character accessibility.
ARIA and Unicode: Making Decorative Symbols Accessible
Use ARIA attributes to make Unicode symbols and emoji accessible — aria-label, aria-hidden, role=img patterns, and screen reader testing strategies.
How Screen Readers Handle Unicode Symbols and Emoji
Learn how screen readers announce Unicode symbols, emoji, and special characters — NVDA, JAWS, VoiceOver behavior differences and best practices.
Windows Alt Codes: Complete Reference for Special Characters
The complete Windows Alt code reference — how Alt codes work, the most useful codes for common symbols, and alternatives for modern Windows.
Unicode Hex Input on macOS: Type Any Character by Code Point
Enable and use the Unicode Hex Input keyboard on macOS — type any Unicode character by holding Option and typing its hex code point.
Dead Keys: How to Type Accented Characters Without a Special Keyboard
Master dead keys for typing accented characters — how they work on US International, UK Extended, and other keyboard layouts across all platforms.
Input Method Editors (IME): How CJK Text Input Works
Understand how Input Method Editors work — Japanese IME workflow, Chinese pinyin input, Korean hangul composition, and web form compatibility.
How to Type Special Characters on Linux: Compose Key and Unicode Input
Type special characters on Linux — Compose key sequences, Ctrl+Shift+U Unicode input, IBus/Fcitx input methods, and custom .XCompose files.
How to Type Special Characters on Windows: Alt Codes and Beyond
Type any special character on Windows — Alt codes, Win+. emoji panel, Character Map, Unicode hex input, and third-party tools like WinCompose.
How to Type Special Characters on Mac: The Complete Guide
Master typing special characters on macOS — Option key shortcuts, Character Viewer, Unicode Hex Input, dead keys, and emoji picker.