{"id":7061,"date":"2026-01-21T11:49:18","date_gmt":"2026-01-21T11:49:18","guid":{"rendered":"https:\/\/www.airsang.com\/?p=7061"},"modified":"2026-01-21T11:50:18","modified_gmt":"2026-01-21T11:50:18","slug":"how-to-undo-theme-editor-changes-in-wordpress-2","status":"publish","type":"post","link":"https:\/\/www.airsang.com\/ja\/how-to-undo-theme-editor-changes-in-wordpress-2\/","title":{"rendered":"WordPress\u306e\u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\u30fc\u306e\u5909\u66f4\u3092\u5143\u306b\u623b\u3059\u65b9\u6cd5"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-1024x683.png\" alt=\"WordPress\u306e\u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\u30fc\u306e\u5909\u66f4\u3092\u5143\u306b\u623b\u3059\u65b9\u6cd5\" class=\"wp-image-7064\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-1024x683.png 1024w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-300x200.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-768x512.png 768w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-18x12.png 18w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-1000x667.png 1000w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243-10x7.png 10w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-243.png 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019ve ever edited a <strong><a href=\"https:\/\/www.WordPres.com\" target=\"_blank\" rel=\"noopener\">\u30ef\u30fc\u30c9\u30d7\u30ec\u30b9<\/a><\/strong> theme and suddenly realized something went wrong, you\u2019re not alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A layout breaks. Text disappears. Colors change unexpectedly.<br>And the first question that comes to mind is simple:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Can I undo a theme editor change in WordPress?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The short answer is yes \u2014 but the method depends on how and where the change was made.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this guide, we\u2019ll walk through every practical way to undo theme editor changes in WordPress, from built-in revision tools to backups and recovery strategies. This article is written for beginners, business owners, and anyone managing a WordPress site without wanting to break it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our focus keyword throughout this guide is:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">how to undo theme editor change wordpress<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Understanding the WordPress Theme Editor (Before Undoing Anything)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-1024x536.png\" alt=\"WordPress\u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\u30fc\u306e\u5909\u66f4\u3092\u5143\u306b\u623b\u3059\u65b9\u6cd5 - WordPress\u30c6\u30fc\u30de\u30a8\u30c7\u30a3\u30bf\u30fc\u3092\u7406\u89e3\u3059\u308b\" class=\"wp-image-7065\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-1024x536.png 1024w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-300x157.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-768x402.png 768w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-18x9.png 18w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-1000x523.png 1000w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244-10x5.png 10w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-244.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Before you can undo changes, it helps to understand what the WordPress theme editor actually is.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In WordPress, the \u201ctheme editor\u201d can refer to different editing systems, depending on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Your WordPress version<\/li>\n\n\n\n<li>Your active theme<\/li>\n\n\n\n<li>Whether you\u2019re using block themes, classic themes, or page builders<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Common places where theme-related changes happen include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The Site Editor (Full Site Editing)<\/li>\n\n\n\n<li>The Block Editor (Gutenberg)<\/li>\n\n\n\n<li>The Customizer<\/li>\n\n\n\n<li>The Theme File Editor (PHP\/CSS)<\/li>\n\n\n\n<li>Page builders like Elementor or others<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Each of these has different undo capabilities.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Method 1: Undo Changes Using WordPress Revisions (Fastest Option)<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"494\" height=\"118\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-245.png\" alt=\"How to Undo Theme Editor Changes in WordPress-Undo Changes Using WordPress Revisions\" class=\"wp-image-7066\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-245.png 494w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-245-300x72.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-245-18x4.png 18w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-245-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-245-10x2.png 10w\" sizes=\"(max-width: 494px) 100vw, 494px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re editing content or templates using the Block Editor, WordPress automatically saves revisions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What Are Revisions?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Revisions are snapshots of your content saved over time. They allow you to roll back to an earlier version.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This works for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30da\u30fc\u30b8<\/li>\n\n\n\n<li>\u6295\u7a3f<\/li>\n\n\n\n<li>\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/li>\n\n\n\n<li>Template parts (headers, footers, etc.)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">How to Undo Theme Editor Changes with Revisions<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Open the page or template you edited<\/li>\n\n\n\n<li>Click \u201cSettings\u201d (top right)<\/li>\n\n\n\n<li>Find Revisions<\/li>\n\n\n\n<li>Browse older versions<\/li>\n\n\n\n<li>Restore the version that worked<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">This is one of the safest answers to how to undo theme editor change wordpress when you\u2019re working inside Gutenberg.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u91cd\u8981\uff1a<\/strong> Revisions only exist if:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The content was saved<\/li>\n\n\n\n<li>Revisions are not disabled on your site<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Method 2: Use Undo &amp; Redo While Editing (Ctrl + Z)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Sometimes the simplest solution works best.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">While editing in the WordPress editor:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Undo:<\/strong> <code>Ctrl + Z<\/code> (Windows) \/ <code>Cmd + Z<\/code> (Mac)<\/li>\n\n\n\n<li><strong>Redo:<\/strong> <code>Ctrl + Shift + Z<\/code> \/ <code>Cmd + Shift + Z<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This only works before you refresh or close the editor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019ve already saved or exited the page, this method will no longer help.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Method 3: Revert Theme Template Changes in the Site Editor<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"840\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-1024x840.png\" alt=\"How to Undo Theme Editor Changes in WordPress-Revert Theme Template Changes in the Site Editor\" class=\"wp-image-7067\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-1024x840.png 1024w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-300x246.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-768x630.png 768w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-15x12.png 15w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-1000x820.png 1000w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246-10x8.png 10w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/01\/image-246.png 1146w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re using a block-based theme, WordPress offers a full Site Editor for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Headers<\/li>\n\n\n\n<li>Footers<\/li>\n\n\n\n<li>Layout templates<\/li>\n\n\n\n<li>Global styles<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Undoing Template Changes<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Go to Appearance \u2192 Editor<\/li>\n\n\n\n<li>Open Templates or Template Parts<\/li>\n\n\n\n<li>Select the edited template<\/li>\n\n\n\n<li>Click Revisions<\/li>\n\n\n\n<li>\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5fa9\u5143\u3059\u308b<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">This is a key method for undoing global layout mistakes, which are common when learning Full Site Editing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Method 4: Reset Styles in Global Styles Panel<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many users accidentally break their site by changing fonts, colors, or spacing globally.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How to Undo Global Style Changes<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Go to Appearance \u2192 Editor<\/li>\n\n\n\n<li>Open Styles<\/li>\n\n\n\n<li>Click the three-dot menu<\/li>\n\n\n\n<li>Choose Reset to defaults<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">This instantly restores your theme\u2019s original styling.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your site suddenly looks \u201coff,\u201d this is often the fix.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Method 5: Restore Theme Files (Advanced Users)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you edited theme files directly using:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Appearance \u2192 Theme File Editor<\/li>\n\n\n\n<li>Custom CSS<\/li>\n\n\n\n<li><code>\u95a2\u6570.php<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Undoing becomes more technical.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">If You Still Have the Original Code<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Manually revert the file to its previous version<\/li>\n\n\n\n<li>Save changes carefully<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">If You Don\u2019t Remember What Changed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is where many users get stuck.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At this point, the best solution is restoring a backup.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Method 6: Restore a Backup (Safest Universal Solution)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Backups are the ultimate safety net.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your host or plugin provides backups, you can:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Restore the entire site<\/li>\n\n\n\n<li>Or selectively restore files and database<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Common backup sources:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hosting provider backups<\/li>\n\n\n\n<li>WordPress backup plugins<\/li>\n\n\n\n<li>Server snapshots<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re asking \u201chow to undo theme editor change wordpress after everything broke\u201d, backups are often the only reliable answer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Method 7: Reinstall the Theme (When Files Are Corrupted)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If your theme files are heavily modified:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Download a fresh copy of the theme<\/li>\n\n\n\n<li>Delete the current theme (without deleting content)<\/li>\n\n\n\n<li>Reinstall the theme<\/li>\n\n\n\n<li>Reapply safe customizations<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">This works best if:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>You didn\u2019t heavily customize the theme files<\/li>\n\n\n\n<li>Or customizations were minimal<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Why Undoing Theme Changes Often Goes Wrong<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Many WordPress issues happen because users:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Edit live sites without staging<\/li>\n\n\n\n<li>Modify theme files directly<\/li>\n\n\n\n<li>Don\u2019t understand global vs page-level changes<\/li>\n\n\n\n<li>Don\u2019t use backups<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This is especially common for business websites, cross-border eCommerce sites, and brand sites, where one small layout change can impact conversions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Best Practices to Avoid Needing to Undo Changes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you manage a WordPress site regularly, follow these rules:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Use staging environments<\/li>\n\n\n\n<li>Rely on child themes<\/li>\n\n\n\n<li>Avoid editing core theme files<\/li>\n\n\n\n<li>Use revision-friendly editors<\/li>\n\n\n\n<li>Always keep backups<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Prevention is easier than recovery.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">When You Should Stop Undoing and Ask for Help<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The site layout is completely broken<\/li>\n\n\n\n<li>The header\/footer disappeared<\/li>\n\n\n\n<li>CSS conflicts appear everywhere<\/li>\n\n\n\n<li>Theme updates overwrite changes<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">It\u2019s time to stop experimenting and get professional support.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Final Thoughts: Undo Is Easy \u2014 Strategy Is Hard<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Learning how to undo theme editor change wordpress is essential for anyone running a WordPress site.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But undoing mistakes is only a temporary solution.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u5f53\u306b\u91cd\u8981\u306a\u306e\u306f\u6b21\u306e\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A clean theme structure<\/li>\n\n\n\n<li>Scalable design<\/li>\n\n\n\n<li>Safe customization<\/li>\n\n\n\n<li>\u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u91cd\u8996\u306e\u30ec\u30a4\u30a2\u30a6\u30c8<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">AIRSANG\u304c\u3069\u306e\u3088\u3046\u306b\u5f79\u7acb\u3064\u304b <\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u3067 <strong><a href=\"https:\/\/www.airsang.com\/ja\/\">\u30a8\u30a2\u30b5\u30f3<\/a><\/strong>, we specialize in cross-border <strong><a href=\"https:\/\/www.WordPres.com\" target=\"_blank\" rel=\"noopener\">\u30ef\u30fc\u30c9\u30d7\u30ec\u30b9<\/a><\/strong> and eCommerce website design, helping brands build stable, scalable, and conversion-driven websites from the ground up.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Instead of constantly undoing broken edits, we help you:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Design WordPress themes the right way<\/li>\n\n\n\n<li>Customize safely without breaking updates<\/li>\n\n\n\n<li>Optimize layouts for global audiences<\/li>\n\n\n\n<li>Build websites that support long-term growth<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you\u2019re tired of fixing theme editor mistakes and want a site that just works \u2014<br><strong><a href=\"https:\/\/www.airsang.com\/ja\/%e3%81%8a%e5%95%8f%e3%81%84%e5%90%88%e3%82%8f%e3%81%9b\/\">\u30a8\u30a2\u30b5\u30f3<\/a><\/strong> \u304a\u624b\u4f1d\u3044\u3044\u305f\u3057\u307e\u3059\u3002.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>If you\u2019ve ever edited a WordPress theme and suddenly realized something went wrong, you\u2019re not alone. A layout breaks. Text disappears. Colors change unexpectedly.And the first question that comes to mind is simple: Can I undo a theme editor change in WordPress? The short answer is yes \u2014 but the method depends on how and where the change was made. In this guide, we\u2019ll walk through every practical way to undo theme editor changes in WordPress, from built-in revision tools to backups and recovery strategies. This article is written for beginners, business owners, and anyone managing a WordPress site without wanting to break it. Our focus keyword throughout this guide [&hellip;]<\/p>","protected":false},"author":2,"featured_media":7064,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,17,1],"tags":[],"class_list":["post-7061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-insights","category-tips-marketing","category-web-knowledge"],"_links":{"self":[{"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/posts\/7061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/comments?post=7061"}],"version-history":[{"count":0,"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/posts\/7061\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/media\/7064"}],"wp:attachment":[{"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/media?parent=7061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/categories?post=7061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.airsang.com\/ja\/wp-json\/wp\/v2\/tags?post=7061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}