diff --git a/Libraries/LibWeb/CSS/Parser/ErrorReporter.cpp b/Libraries/LibWeb/CSS/Parser/ErrorReporter.cpp
index f5cc24181aa..dadf8dbed7f 100644
--- a/Libraries/LibWeb/CSS/Parser/ErrorReporter.cpp
+++ b/Libraries/LibWeb/CSS/Parser/ErrorReporter.cpp
@@ -64,4 +64,13 @@ void ErrorReporter::report(ParsingError&& error)
     m_errors.set(move(error), { .occurrences = 1 });
 }
 
+void ErrorReporter::dump() const
+{
+    // TODO: Organise this in some way?
+    dbgln("{} CSS errors reported:", m_errors.size());
+    for (auto const& [error, metadata] : m_errors) {
+        dbgln("- {} ({} occurrences)", serialize_parsing_error(error), metadata.occurrences);
+    }
+}
+
 }
diff --git a/Libraries/LibWeb/CSS/Parser/ErrorReporter.h b/Libraries/LibWeb/CSS/Parser/ErrorReporter.h
index 736d2451c43..a9a3f27987c 100644
--- a/Libraries/LibWeb/CSS/Parser/ErrorReporter.h
+++ b/Libraries/LibWeb/CSS/Parser/ErrorReporter.h
@@ -130,6 +130,7 @@ public:
     static ErrorReporter& the();
 
     void report(ParsingError&&);
+    void dump() const;
 
 private:
     explicit ErrorReporter() = default;
diff --git a/Services/WebContent/ConnectionFromClient.cpp b/Services/WebContent/ConnectionFromClient.cpp
index 959411027a7..f84d73f8ea4 100644
--- a/Services/WebContent/ConnectionFromClient.cpp
+++ b/Services/WebContent/ConnectionFromClient.cpp
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2020-2023, Andreas Kling <andreas@ladybird.org>
- * Copyright (c) 2021-2024, Sam Atkins <sam@ladybird.org>
+ * Copyright (c) 2021-2025, Sam Atkins <sam@ladybird.org>
  * Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
  * Copyright (c) 2022, Tobias Christiansen <tobyase@serenityos.org>
  * Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
@@ -22,6 +22,7 @@
 #include <LibWeb/ARIA/RoleType.h>
 #include <LibWeb/Bindings/MainThreadVM.h>
 #include <LibWeb/CSS/ComputedProperties.h>
+#include <LibWeb/CSS/Parser/ErrorReporter.h>
 #include <LibWeb/CSS/StyleComputer.h>
 #include <LibWeb/DOM/Attr.h>
 #include <LibWeb/DOM/CharacterData.h>
@@ -352,6 +353,11 @@ void ConnectionFromClient::debug_request(u64 page_id, ByteString request, ByteSt
         return;
     }
 
+    if (request == "dump-all-css-errors") {
+        Web::CSS::Parser::ErrorReporter::the().dump();
+        return;
+    }
+
     if (request == "collect-garbage") {
         // NOTE: We use deferred_invoke here to ensure that GC runs with as little on the stack as possible.
         Core::deferred_invoke([] {