diff --git a/src/duplicacy_b2client.go b/src/duplicacy_b2client.go
index 3b115c8..aac2d80 100644
--- a/src/duplicacy_b2client.go
+++ b/src/duplicacy_b2client.go
@@ -75,7 +75,7 @@ func B2Escape(path string) string {
 	return strings.Join(components, "/")
 }
 
-func NewB2Client(applicationKeyID string, applicationKey string, storageDir string, threads int) *B2Client {
+func NewB2Client(applicationKeyID string, applicationKey string, downloadURL string, storageDir string, threads int) *B2Client {
 
 	for storageDir != "" && storageDir[0] == '/' {
 		storageDir = storageDir[1:]
@@ -95,6 +95,7 @@ func NewB2Client(applicationKeyID string, applicationKey string, storageDir stri
 		HTTPClient:       http.DefaultClient,
 		ApplicationKeyID: applicationKeyID,
 		ApplicationKey:   applicationKey,
+		DownloadURL:      downloadURL,
 		StorageDir:       storageDir,
 		UploadURLs:       make([]string, threads),
 		UploadTokens:     make([]string, threads),
@@ -325,7 +326,10 @@ func (client *B2Client) AuthorizeAccount(threadIndex int) (err error, allowed bo
 
 	client.AuthorizationToken = output.AuthorizationToken
 	client.APIURL = output.APIURL
-	client.DownloadURL = output.DownloadURL
+	if client.DownloadURL == "" {
+		client.DownloadURL = output.DownloadURL
+	}
+	LOG_INFO("BACKBLAZE_URL", "download URL is: %s", client.DownloadURL)
 	client.IsAuthorized = true
 
 	client.LastAuthorizationTime = time.Now().Unix()
diff --git a/src/duplicacy_b2client_test.go b/src/duplicacy_b2client_test.go
index ebcc5df..cb9932a 100644
--- a/src/duplicacy_b2client_test.go
+++ b/src/duplicacy_b2client_test.go
@@ -37,7 +37,7 @@ func createB2ClientForTest(t *testing.T) (*B2Client, string) {
 		return nil, ""
 	}
 
-	return NewB2Client(b2["account"], b2["key"], b2["directory"], 1), b2["bucket"]
+	return NewB2Client(b2["account"], b2["key"], "", b2["directory"], 1), b2["bucket"]
 
 }
 
diff --git a/src/duplicacy_b2storage.go b/src/duplicacy_b2storage.go
index 660bb26..52a9457 100644
--- a/src/duplicacy_b2storage.go
+++ b/src/duplicacy_b2storage.go
@@ -15,9 +15,9 @@ type B2Storage struct {
 }
 
 // CreateB2Storage creates a B2 storage object.
-func CreateB2Storage(accountID string, applicationKey string, bucket string, storageDir string, threads int) (storage *B2Storage, err error) {
+func CreateB2Storage(accountID string, applicationKey string, downloadURL string, bucket string, storageDir string, threads int) (storage *B2Storage, err error) {
 
-	client := NewB2Client(accountID, applicationKey, storageDir, threads)
+	client := NewB2Client(accountID, applicationKey, downloadURL, storageDir, threads)
 
 	err, _ = client.AuthorizeAccount(0)
 	if err != nil {
diff --git a/src/duplicacy_storage.go b/src/duplicacy_storage.go
index 7cf85cf..c9ab70d 100644
--- a/src/duplicacy_storage.go
+++ b/src/duplicacy_storage.go
@@ -531,7 +531,25 @@ func CreateStorage(preference Preference, resetPassword bool, threads int) (stor
 		accountID := GetPassword(preference, "b2_id", "Enter Backblaze account or application id:", true, resetPassword)
 		applicationKey := GetPassword(preference, "b2_key", "Enter corresponding Backblaze application key:", true, resetPassword)
 
-		b2Storage, err := CreateB2Storage(accountID, applicationKey, bucket, storageDir, threads)
+		b2Storage, err := CreateB2Storage(accountID, applicationKey, "", bucket, storageDir, threads)
+		if err != nil {
+			LOG_ERROR("STORAGE_CREATE", "Failed to load the Backblaze B2 storage at %s: %v", storageURL, err)
+			return nil
+		}
+		SavePassword(preference, "b2_id", accountID)
+		SavePassword(preference, "b2_key", applicationKey)
+		return b2Storage
+	} else if matched[1] == "b2-custom" {
+		b2customUrlRegex := regexp.MustCompile(`^b2-custom://([^/]+)/([^/]+)(/(.+))?`)
+		matched := b2customUrlRegex.FindStringSubmatch(storageURL)
+		downloadURL := "https://" + matched[1]
+		bucket := matched[2]
+		storageDir := matched[4]
+
+		accountID := GetPassword(preference, "b2_id", "Enter Backblaze account or application id:", true, resetPassword)
+		applicationKey := GetPassword(preference, "b2_key", "Enter corresponding Backblaze application key:", true, resetPassword)
+
+		b2Storage, err := CreateB2Storage(accountID, applicationKey, downloadURL, bucket, storageDir, threads)
 		if err != nil {
 			LOG_ERROR("STORAGE_CREATE", "Failed to load the Backblaze B2 storage at %s: %v", storageURL, err)
 			return nil
diff --git a/src/duplicacy_storage_test.go b/src/duplicacy_storage_test.go
index 4cffdbc..ce4c0e8 100644
--- a/src/duplicacy_storage_test.go
+++ b/src/duplicacy_storage_test.go
@@ -109,7 +109,7 @@ func loadStorage(localStoragePath string, threads int) (Storage, error) {
 		storage.SetDefaultNestingLevels([]int{2, 3}, 2)
 		return storage, err
 	} else if testStorageName == "b2" {
-		storage, err := CreateB2Storage(config["account"], config["key"], config["bucket"], config["directory"], threads)
+		storage, err := CreateB2Storage(config["account"], config["key"], "", config["bucket"], config["directory"], threads)
 		storage.SetDefaultNestingLevels([]int{2, 3}, 2)
 		return storage, err
 	} else if testStorageName == "gcs-s3" {