📖 Ruby (furigana) Editor

It adds furigana (ruby) to kanji characters and automatically generates <ruby><rt> tags in HTML.

Click each character to set its reading.

Characters will be displayed when text is entered

preview

Preview will appear here when ruby is added

Generated HTML

Usage and Application Examples

  • Add furigana to kanji characters in blog posts and web pages
  • Creating ruby text for Japanese language learning materials
  • Clarify readings of difficult-to-read kanji and proper nouns.
  • Add ruby annotations to improve accessibility

What is Furigana Editor?

The Furigana Editor generates HTML ruby tags that display furigana (phonetic readings) above kanji characters. Essential for language learners, children's books, and web accessibility, this tool automates the tedious manual process of wrapping kanji in ruby markup while offering granular character-level control for customization.

How to Use

Paste Japanese text into the input field. The tool analyzes kanji characters and suggests standard furigana readings based on context. Review the suggestions and click individual characters to specify alternate readings if needed. Once satisfied with the output, copy the generated HTML code containing proper tags. Paste directly into your HTML documents or CMS platforms. The output maintains original formatting and styling while adding pronunciation guidance above characters.

Use Cases

Furigana tools support diverse applications:
• Educational content creation: Add ruby to textbooks and study materials for Japanese language learners
• Children's literature: Make stories fully accessible to early readers still mastering kanji characters
• Web accessibility enhancement: Provide pronunciation for websites serving diverse and international audiences
• Publishing and localization: Prepare Japanese text with readings for manga, game, and digital content publishing

Tips & Insights

Ruby markup is natively supported across all modern browsers and renders cleanly in e-readers. The element is semantic HTML5—never create ruby using CSS overlays or JavaScript workarounds. Japanese furigana conventions differ between on-readings (音読み) and kun-readings (訓読み), following specific linguistic rules. This tool saves hours of manual typing for large documents containing many kanji. Understanding ruby markup helps developers create truly multilingual content that respects Japanese orthographic conventions and improves user experience.

Frequently Asked Questions

What is the ruby tag in HTML?

The <ruby> tag in HTML is an element used to display furigana (ruby) for East Asian characters. The parent character is written in the <ruby> tag, and the furigana is specified with the <rt> tag. Example: <ruby>Kanji <rt>Kanji</rt></ruby

Which browsers can display furigana (ruby)?

All major browsers (Chrome, Firefox, Safari, and Edge) support displaying furigana using <ruby> tags. Even older browsers will display furigana in parentheses as a fallback.

What are the accessibility advantages of ruby tags?

Ruby tags allow screen readers to correctly recognize the reading of kanji characters. This makes it easier for the visually impaired and learners of Japanese to understand the content.

How do you use the batch mode delimiter?

In batch mode, enter parent characters and furigana separated by a delimiter character (default is "|"). For example, entering "Kanji|Kanji" will automatically generate HTML for <ruby>Kanji<rt>Kanji</rt></ruby>. Multiple words are separated by a new line.

Can I use ruby in WordPress and blogs?

YES. You can paste the generated HTML code directly into the WordPress text editor (HTML edit mode) or into the HTML input field of your blog to display text with furigana.

Can I customize the look of the ruby using CSS?

Yes, you can freely customize the size and color of furigana by specifying the font-size, color, font-family, etc. of the rt element in CSS. Generally, you can specify them as follows: rt { font-size: 0.5em; }.

Does adding ruby tags affect SEO or how search engines see my content?

Search engines can read the text within ruby tags, so both kanji and furigana contribute to SEO equally. Ruby tags don't provide special SEO benefits—they primarily improve user readability and accessibility. Use them for meaningful content rather than as an SEO tactic.

Can I export the HTML code in different formats?

This tool generates standard HTML5 ruby tags that work universally across platforms, editors, and CMS. You can copy and paste the plain HTML directly into any system. You can also wrap the code in custom CSS classes for further styling.

Is there a way to copy the entire HTML output at once?

Yes, the tool includes a 'Copy All' or 'Copy HTML' button to select all generated code in one action. Alternatively, select all text manually and use Ctrl+C (or Cmd+C on Mac) to copy it directly into your HTML file or editor.

Can I use ruby tags together with other Japanese text tools?

Yes, ruby HTML combines easily with other Japanese tools—for example, you can add ruby markup to text from other formatters. The tags won't conflict with other HTML structures when properly nested. Test the final output in your target platform.

Do ruby tags have any performance impact on page loading speed?

Ruby tags add minimal overhead—they're standard HTML elements with no JavaScript or external resources. Even pages with hundreds of ruby annotations load just as quickly as plain HTML. Rendering is handled natively by browsers without additional processing.

How do ruby tags display on mobile devices compared to desktop?

Ruby text typically displays above kanji on both desktop and mobile, though spacing may vary slightly. Most modern mobile browsers support ruby tags well, though very old devices may display all text inline. Test on both mobile and desktop to ensure readability.