diff --git a/pages/editor/editor.pixy b/pages/editor/editor.pixy
index fa2e0264..d35b1783 100644
--- a/pages/editor/editor.pixy
+++ b/pages/editor/editor.pixy
@@ -40,6 +40,7 @@ component EditorTabs(url string, user *arn.User)
 			Tab("MAL", "arrows-h", "/editor/anime/mapping/mal" + user.Settings().Editor.Filter.Suffix())
 			Tab("Shoboi", "arrows-h", "/editor/anime/mapping/shoboi" + user.Settings().Editor.Filter.Suffix())
 			Tab("AniList", "arrows-h", "/editor/anime/mapping/anilist" + user.Settings().Editor.Filter.Suffix())
+			Tab("Duplicate", "exclamation-circle", "/editor/anime/mapping/duplicate" + user.Settings().Editor.Filter.Suffix())
 
 	if strings.Contains(url, "/editor/anime/image/")
 		.tabs
diff --git a/pages/editor/filteranime/duplicate-mapping.go b/pages/editor/filteranime/duplicate-mapping.go
new file mode 100644
index 00000000..43093a9d
--- /dev/null
+++ b/pages/editor/filteranime/duplicate-mapping.go
@@ -0,0 +1,30 @@
+package filteranime
+
+import (
+	"github.com/aerogo/aero"
+	"github.com/animenotifier/arn"
+)
+
+// DuplicateMappings ...
+func DuplicateMappings(ctx *aero.Context) string {
+	return editorList(
+		ctx,
+		"Anime with duplicate mappings",
+		func(anime *arn.Anime) bool {
+			all := map[string]bool{}
+
+			for _, mapping := range anime.Mappings {
+				_, exists := all[mapping.Service]
+
+				if exists {
+					return true
+				}
+
+				all[mapping.Service] = true
+			}
+
+			return false
+		},
+		nil,
+	)
+}
diff --git a/pages/index.go b/pages/index.go
index b58bb903..0f8986fd 100644
--- a/pages/index.go
+++ b/pages/index.go
@@ -249,33 +249,6 @@ func Configure(app *aero.Application) {
 
 	// Editor links can be filtered by year, status and type
 	editorFilterable := func(route string, handler func(ctx *aero.Context) string) {
-		// l.Page(route, func(ctx *aero.Context) string {
-		// 	user := utils.GetUser(ctx)
-
-		// 	if user == nil {
-		// 		return ctx.Error(http.StatusUnauthorized, "Not logged in", nil)
-		// 	}
-
-		// 	settings := user.Settings().Editor
-
-		// 	year := settings.Filter.Year
-		// 	status := settings.Filter.Status
-		// 	typ := settings.Filter.Type
-
-		// 	if year == "" {
-		// 		year = "any"
-		// 	}
-
-		// 	if status == "" {
-		// 		status = "any"
-		// 	}
-
-		// 	if typ == "" {
-		// 		typ = "any"
-		// 	}
-
-		// 	return ctx.Redirect(fmt.Sprintf("%s/%s/%s/%s", ctx.URI(), year, status, typ))
-		// })
 		l.Page(route+"/:year/:status/:type", handler)
 	}
 
@@ -286,6 +259,7 @@ func Configure(app *aero.Application) {
 	editorFilterable("/editor/anime/mapping/shoboi", filteranime.Shoboi)
 	editorFilterable("/editor/anime/mapping/anilist", filteranime.AniList)
 	editorFilterable("/editor/anime/mapping/mal", filteranime.MAL)
+	editorFilterable("/editor/anime/mapping/duplicate", filteranime.DuplicateMappings)
 	editorFilterable("/editor/anime/image/lowres", filteranime.LowResolutionAnimeImages)
 	editorFilterable("/editor/anime/image/ultralowres", filteranime.UltraLowResolutionAnimeImages)