diff --git a/backend/internal/handler/dev_handler.go b/backend/internal/handler/dev_handler.go
index 732e4e2f..33a9b3f5 100644
--- a/backend/internal/handler/dev_handler.go
+++ b/backend/internal/handler/dev_handler.go
@@ -13,16 +13,18 @@ import (
 )
 
 type DevHandler struct {
-	Hydra      *service.HydraAdminService
-	Redis      *service.RedisService
-	SecretRepo domain.ClientSecretRepository
+	Hydra       *service.HydraAdminService
+	Redis       *service.RedisService
+	SecretRepo  domain.ClientSecretRepository
+	KratosAdmin *service.KratosAdminService
 }
 
 func NewDevHandler(redis *service.RedisService, secretRepo domain.ClientSecretRepository) *DevHandler {
 	return &DevHandler{
-		Hydra:      service.NewHydraAdminService(),
-		Redis:      redis,
-		SecretRepo: secretRepo,
+		Hydra:       service.NewHydraAdminService(),
+		Redis:       redis,
+		SecretRepo:  secretRepo,
+		KratosAdmin: service.NewKratosAdminService(),
 	}
 }
 
@@ -59,6 +61,7 @@ type clientEndpoints struct {
 
 type consentSummary struct {
 	Subject         string   `json:"subject"`
+	UserName        string   `json:"userName,omitempty"`
 	ClientID        string   `json:"clientId"`
 	ClientName      string   `json:"clientName,omitempty"`
 	GrantedScopes   []string `json:"grantedScopes"`
@@ -395,6 +398,15 @@ func (h *DevHandler) ListConsents(c *fiber.Ctx) error {
 	if subject == "" {
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "subject is required"})
 	}
+
+	// If subject is not a UUID, try to resolve it as an identifier (email/username)
+	if _, err := uuid.Parse(subject); err != nil {
+		resolved, err := h.KratosAdmin.FindIdentityIDByIdentifier(c.Context(), subject)
+		if err == nil && resolved != "" {
+			subject = resolved
+		}
+	}
+
 	clientID := strings.TrimSpace(c.Query("client_id"))
 
 	sessions, err := h.Hydra.ListConsentSessions(c.Context(), subject, clientID)
@@ -412,6 +424,21 @@ func (h *DevHandler) ListConsents(c *fiber.Ctx) error {
 		if subject == "" && session.ConsentRequest != nil {
 			subject = session.ConsentRequest.Subject
 		}
+
+		userName := ""
+		if subject != "" {
+			identity, err := h.KratosAdmin.GetIdentity(c.Context(), subject)
+			if err == nil && identity != nil {
+				if name, ok := identity.Traits["name"].(string); ok {
+					userName = name
+				} else if displayName, ok := identity.Traits["displayname"].(string); ok {
+					userName = displayName
+				} else if email, ok := identity.Traits["email"].(string); ok {
+					userName = email
+				}
+			}
+		}
+
 		authAt := ""
 		if session.AuthenticatedAt != nil {
 			authAt = session.AuthenticatedAt.Format(time.RFC3339)
@@ -422,6 +449,7 @@ func (h *DevHandler) ListConsents(c *fiber.Ctx) error {
 		}
 		items = append(items, consentSummary{
 			Subject:         subject,
+			UserName:        userName,
 			ClientID:        client.ClientID,
 			ClientName:      client.ClientName,
 			GrantedScopes:   session.GrantedScope,
@@ -437,6 +465,15 @@ func (h *DevHandler) RevokeConsents(c *fiber.Ctx) error {
 	if subject == "" {
 		return c.Status(fiber.StatusBadRequest).JSON(fiber.Map{"error": "subject is required"})
 	}
+
+	// If subject is not a UUID, try to resolve it as an identifier (email/username)
+	if _, err := uuid.Parse(subject); err != nil {
+		resolved, err := h.KratosAdmin.FindIdentityIDByIdentifier(c.Context(), subject)
+		if err == nil && resolved != "" {
+			subject = resolved
+		}
+	}
+
 	clientID := strings.TrimSpace(c.Query("client_id"))
 
 	if err := h.Hydra.RevokeConsentSessions(c.Context(), subject, clientID); err != nil {