diff --git a/tools/db/manage_db.go b/tools/db/manage_db.go
new file mode 100644
index 0000000..57c6fdc
--- /dev/null
+++ b/tools/db/manage_db.go
@@ -0,0 +1,130 @@
+package main
+
+import (
+	"container/heap"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"log"
+	"strings"
+	"time"
+
+	"github.com/boltdb/bolt"
+	"github.com/gojp/goreportcard/handlers"
+)
+
+var (
+	repo      = flag.String("remove", "", "repo to remove from high scores")
+	listDupes = flag.Bool("list-duplicates", false, "list duplicate repos in cache")
+)
+
+func deleteRepo(repo string) error {
+	db, err := bolt.Open("goreportcard.db", 0755, &bolt.Options{Timeout: 1 * time.Second})
+	if err != nil {
+		return fmt.Errorf("could not open bolt db: %v", err)
+	}
+	defer db.Close()
+	return db.Update(func(tx *bolt.Tx) error {
+		mb := tx.Bucket([]byte("meta"))
+		if mb == nil {
+			return fmt.Errorf("high score bucket not found")
+		}
+		scoreBytes := mb.Get([]byte("scores"))
+
+		scores := &handlers.ScoreHeap{}
+		json.Unmarshal(scoreBytes, scores)
+
+		heap.Init(scores)
+
+		var found bool
+		for i := range *scores {
+			if strings.ToLower((*scores)[i].Repo) == strings.ToLower(repo) {
+				log.Printf("repo %q found in high scores. Removing...", repo)
+				heap.Remove(scores, i)
+				found = true
+				break
+			}
+		}
+
+		if !found {
+			log.Printf("repo %q not found in high scores. Exiting...", repo)
+			return nil
+		}
+
+		scoreBytes, err := json.Marshal(&scores)
+		if err != nil {
+			return err
+		}
+
+		err = mb.Put([]byte("scores"), scoreBytes)
+		if err != nil {
+			return err
+		}
+
+		return nil
+	})
+
+}
+
+func listDuplicates() error {
+	db, err := bolt.Open("goreportcard.db", 0755, &bolt.Options{Timeout: 1 * time.Second})
+	if err != nil {
+		return fmt.Errorf("could not open bolt db: %v", err)
+	}
+	defer db.Close()
+	return db.View(func(tx *bolt.Tx) error {
+		repos := map[string][]string{}
+
+		rb := tx.Bucket([]byte("repos"))
+		if rb == nil {
+			return fmt.Errorf("repos bucket not found")
+		}
+
+		err = rb.ForEach(func(k, v []byte) error {
+			lower := strings.ToLower(string(k))
+			if _, ok := repos[lower]; ok {
+				repos[lower] = append(repos[lower], string(k))
+				return nil
+			}
+			repos[lower] = []string{string(k)}
+
+			return nil
+		})
+
+		if err != nil {
+			return err
+		}
+
+		for _, v := range repos {
+			if len(v) > 1 {
+				for _, repo := range v {
+					fmt.Println(repo)
+				}
+			}
+		}
+
+		return nil
+	})
+
+}
+
+func main() {
+	flag.Parse()
+	if *repo == "" && *listDupes == false {
+		log.Println("Usage: manage_db.go [-list-duplicates] [-remove repo]")
+		return
+	}
+
+	var err error
+	if *repo != "" {
+		err = deleteRepo(*repo)
+	}
+
+	if *listDupes {
+		err = listDuplicates()
+	}
+
+	if err != nil {
+		log.Fatal(err)
+	}
+}
diff --git a/tools/scores/high_scores.go b/tools/scores/high_scores.go
deleted file mode 100644
index 0550c08..0000000
--- a/tools/scores/high_scores.go
+++ /dev/null
@@ -1,73 +0,0 @@
-package main
-
-import (
-	"container/heap"
-	"encoding/json"
-	"flag"
-	"fmt"
-	"log"
-	"strings"
-	"time"
-
-	"github.com/boltdb/bolt"
-	"github.com/gojp/goreportcard/handlers"
-)
-
-var repo = flag.String("remove", "", "repo to remove from high scores")
-
-func main() {
-	flag.Parse()
-	if *repo == "" {
-		log.Println("No repo provided. Usage: high_scores.go -remove [repo]")
-		return
-	}
-	db, err := bolt.Open("goreportcard.db", 0755, &bolt.Options{Timeout: 1 * time.Second})
-	if err != nil {
-		log.Println("Failed to open bolt database: ", err)
-		return
-	}
-	defer db.Close()
-	err = db.Update(func(tx *bolt.Tx) error {
-		mb := tx.Bucket([]byte("meta"))
-		if mb == nil {
-			return fmt.Errorf("high score bucket not found")
-		}
-		scoreBytes := mb.Get([]byte("scores"))
-
-		scores := &handlers.ScoreHeap{}
-		json.Unmarshal(scoreBytes, scores)
-
-		heap.Init(scores)
-
-		var found bool
-		for i := range *scores {
-			if strings.ToLower((*scores)[i].Repo) == strings.ToLower(*repo) {
-				log.Printf("repo %q found in high scores. Removing...", *repo)
-				heap.Remove(scores, i)
-				found = true
-				break
-			}
-		}
-
-		if !found {
-			log.Printf("repo %q not found in high scores. Exiting...", *repo)
-			return nil
-		}
-
-		scoreBytes, err := json.Marshal(&scores)
-		if err != nil {
-			return err
-		}
-
-		err = mb.Put([]byte("scores"), scoreBytes)
-		if err != nil {
-			return err
-		}
-
-		return nil
-	})
-
-	if err != nil {
-		log.Fatal(err)
-	}
-}