WordPressブロックエディター vs クラシックエディター：違いは何か

WordPress powers an impressive 43% of all websites on the internet, solidifying its position as the world’s most popular content management system (CMS).  At the heart of WordPress lies its editing tools, which have undergone a significant transformation in recent years.

In 2018, WordPress introduced the Block Editor (Gutenberg), replacing the long-standing Classic Editor. This change sparked a heated debate in the WordPress community, with some users embracing the modern, block-based approach and others clinging to the simplicity of the Classic Editor.

At the beginning of 2025, the ブロックエディター holds an average rating of 2.1 out of 5 stars on WordPress.org, reflecting mixed user sentiment. While it offers advanced design capabilities and flexibility, many users struggle with its learning curve, performance issues, and compatibility challenges. On the other hand, the Classic Editor remains a favorite for its simplicity and familiarity, even as WordPress phases it out in favor of Gutenberg.

In this guide, we’ll explore:

• The key differences between the Block Editor and Classic Editor.
• The pros and cons of each, based on real user feedback.
• Why Gutenberg has received mixed reviews and how it’s improving.
• The future of WordPress editing, including full-site editing and AI integration.
• A decision guide to help you choose the right editor for your needs.

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Key Differences of Block Editor vs Classic Editor

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Editing Experience: Block Editor vs Classic Editor

Block Editor (Gutenberg)

Introduced with WordPress 5.0 in 2018, the Gutenberg Block Editor marked a paradigm shift by adopting a block-based system. This approach allows users to build content using discrete blocks for various elements, enhancing flexibility and visual control without coding expertise.

主な特徴

• Drag-and-drop functionality for flexible layouts.
• Pre-built block types for text, images, videos, buttons, and more.
• Ability to save and reuse blocks across multiple posts.
• Full-site editing (FSE) for customizing headers, footers, and templates.

長所

• Modern, intuitive interface for visual content creation.
• Built-in design elements reduce reliance on plugins.
• Future-proof with ongoing updates and improvements.

短所

• Steeper learning curve for beginners.
• Can slow down performance with complex layouts.
• Some legacy plugins and themes may not work optimally.

クラシック・エディター

For over 15 years, the Classic Editor served as WordPress’s default content editor. Resembling traditional word processors, it offered a straightforward, text-based interface powered by TinyMCE. While user-friendly for basic content creation, its design flexibility was limited, often necessitating additional plugins or custom code for advanced layouts.

主な特徴

• Single text box for writing and formatting.
• Formatting tools similar to Microsoft Word.
• Relies on shortcodes or HTML for custom layouts.

長所

• Familiar and easy to use for text-heavy content.
• Lightweight and fast-loading.
• Works seamlessly with legacy plugins and themes.

短所

• Limited design flexibility without plugins.
• Outdated interface compared to modern editors.
• Not future-proof as WordPress shifts focus to blocks.

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The Future of WordPress Editing

Expanding Full-Site Editing (FSE)

WordPress is gradually refining full-site editing (FSE) to give users more control over website customization. Instead of relying on separate theme settings or external page builders, users can modify headers, footers, and templates directly within the Block Editor. As block-based themes continue to evolve, this approach may become the standard for designing WordPress websites.

AI-Powered Enhancements

AI-driven features could play a larger role in content creation and website management. Future updates might introduce automated layout suggestions, AI-assisted content generation, and smart formatting tools, helping users build pages more efficiently. While still in the early stages, these enhancements could simplify tasks that typically require manual adjustments.

The Uncertain Future of the Classic Editor

The Classic Editor remains available through an official plugin, but WordPress continues to shift its focus toward block-based functionality. As new themes, plugins, and features align more with Gutenberg, users may find it increasingly difficult to maintain a workflow centered around the Classic Editor. While some will likely hold on to the traditional editing experience, its long-term relevance remains uncertain as WordPress adapts to newer technologies.

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Which Editor Should You Choose?

Choose the Classic Editor if:

• You prioritize simplicity and speed for text-heavy blogs.
• Your site relies on legacy plugins or themes.
• You don’t need advanced layouts or design flexibility.

Choose the Block Editor if:

• You want modern, mobile-friendly designs without coding.
• Your content includes multimedia (e.g., videos and interactive charts).
• You plan to use WordPress long-term and want to stay ahead of trends.

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結論

The Classic Editor remains a reliable choice for simplicity, but the Block Editor’s rapid evolution and WordPress’s full-site editing vision make it inevitable for most users. With a low rating on WordPress.org, Gutenberg’s mixed reception may seem discouraging at first. Yet, despite its flaws, it remains at the core of WordPress’s future. 

As WordPress continues to refine Gutenberg, future updates are expected to resolve many of the challenges users face today. For those willing to adapt, the Block Editor offers a modern, flexible, and future-proof solution for content creation. Transitioning early can help users stay ahead of the curve and take full advantage of the innovative features WordPress has in store.