diff --git a/imports/i18n/data/ja.i18n.json b/imports/i18n/data/ja.i18n.json
index 323f0d4c7..bf51efd98 100644
--- a/imports/i18n/data/ja.i18n.json
+++ b/imports/i18n/data/ja.i18n.json
@@ -78,18 +78,18 @@
   "activity-deleteComment": "コメント %s を削除しました",
   "activity-receivedDate": "受付日を %s に変更しました / %s",
   "activity-startDate": "開始日を %s に変更しました / %s",
-  "allboards.starred": "スター",
+  "allboards.starred": "Starred",
   "allboards.templates": "テンプレート",
-  "allboards.remaining": "残り",
-  "allboards.workspaces": "ワークスペース",
-  "allboards.add-workspace": "ワークスペースを追加",
-  "allboards.add-workspace-prompt": "ワークスペース名",
-  "allboards.add-subworkspace": "サブワークスペースを追加",
-  "allboards.add-subworkspace-prompt": "サブワークスペース名",
-  "allboards.edit-workspace": "ワークスペースを編集",
-  "allboards.edit-workspace-name": "ワークスペース名",
-  "allboards.edit-workspace-icon": "ワークスペースアイコン(マークダウン)",
-  "multi-selection-active": "チェックボックスをクリックしてボードを選択",
+  "allboards.remaining": "Remaining",
+  "allboards.workspaces": "Workspaces",
+  "allboards.add-workspace": "Add Workspace",
+  "allboards.add-workspace-prompt": "Workspace name",
+  "allboards.add-subworkspace": "Add Subworkspace",
+  "allboards.add-subworkspace-prompt": "Subworkspace name",
+  "allboards.edit-workspace": "Edit workspace",
+  "allboards.edit-workspace-name": "Workspace name",
+  "allboards.edit-workspace-icon": "Workspace icon (markdown)",
+  "multi-selection-active": "Click checkboxes to select boards",
   "activity-dueDate": "期限日を %s に変更しました / %s",
   "activity-endDate": "終了日を %s に変更しました / %s",
   "add-attachment": "添付ファイルを追加",
@@ -173,7 +173,7 @@
   "boardInfoOnMyBoards-title": "All Boards Settings",
   "show-card-counter-per-list": "Show card count per list",
   "show-board_members-avatar": "Show Board members avatars",
-  "board_members": "すべてのボードメンバ",
+  "board_members": "All board members",
   "card_members": "All members of current card at this board",
   "board_assignees": "All assignees of all cards at this board",
   "card_assignees": "All assignees of current card at this board",
@@ -208,8 +208,8 @@
   "board-view-gantt": "ガント",
   "board-view-lists": "リスト",
   "bucket-example": "Like \"Bucket List\" for example",
-  "calendar-previous-month-label": "前月",
-  "calendar-next-month-label": "次月",
+  "calendar-previous-month-label": "Previous Month",
+  "calendar-next-month-label": "Next Month",
   "cancel": "キャンセル",
   "card-archived": "このカードをアーカイブしました。",
   "board-archived": "このボードをアーカイブしました。",
@@ -287,7 +287,7 @@
   "change-settings": "設定の変更",
   "changeAvatarPopup-title": "アバターの変更",
   "delete-avatar-confirm": "Are you sure you want to delete this avatar?",
-  "deleteAvatarPopup-title": "アバターを削除しますか？",
+  "deleteAvatarPopup-title": "Delete Avatar?",
   "changeLanguagePopup-title": "言語の変更",
   "changePasswordPopup-title": "パスワードの変更",
   "changePermissionsPopup-title": "パーミッションの変更",
@@ -340,8 +340,8 @@
   "comment-delete": "コメントを削除してもよろしいでしょうか？",
   "deleteCommentPopup-title": "コメントを削除しますか？",
   "no-comments": "コメントなし",
-  "no-comments-desc": "コメントの閲覧不可",
-  "read-only": "読み取り専用",
+  "no-comments-desc": "Can not see comments.",
+  "read-only": "Read Only",
   "read-only-desc": "Can view cards only. Can not edit.",
   "read-assigned-only": "Only Assigned Read",
   "read-assigned-only-desc": "Only assigned cards visible. Can not edit.",
@@ -352,7 +352,7 @@
   "confirm-checklist-delete-popup": "チェックリストを削除してもよろしいでしょうか？",
   "subtaskDeletePopup-title": "サブタスクを削除しますか？",
   "checklistDeletePopup-title": "チェックリストを削除しますか？",
-  "checklistItemDeletePopup-title": "チェックリスト項目を削除しますか？",
+  "checklistItemDeletePopup-title": "Delete Checklist Item?",
   "copy-card-link-to-clipboard": "カードへのリンクをクリップボードにコピー",
   "copy-text-to-clipboard": "テキストをクリップボードにコピー",
   "linkCardPopup-title": "カードをリンク",
@@ -383,10 +383,10 @@
   "custom-field-text": "テキスト",
   "custom-fields": "カスタムフィールド",
   "date": "日付",
-  "date-format": "日付形式",
-  "date-format-yyyy-mm-dd": "年-月-日",
-  "date-format-dd-mm-yyyy": "日-月-年", 
-  "date-format-mm-dd-yyyy": "月-日-年",
+  "date-format": "Date Format",
+  "date-format-yyyy-mm-dd": "YYYY-MM-DD",
+  "date-format-dd-mm-yyyy": "DD-MM-YYYY", 
+  "date-format-mm-dd-yyyy": "MM-DD-YYYY",
   "decline": "拒否",
   "default-avatar": "デフォルトのアバター",
   "delete": "削除",
@@ -412,7 +412,7 @@
   "editNotificationPopup-title": "通知の変更",
   "editProfilePopup-title": "プロフィールの編集",
   "email": "メールアドレス",
-  "email-address": "メールアドレス",
+  "email-address": "Email Address",
   "email-enrollAccount-subject": "__siteName__であなたのアカウントが作成されました",
   "email-enrollAccount-text": "こんにちは、__user__さん。\n\nサービスを開始するには、以下をクリックしてください。\n\n__url__\n\nよろしくお願いします。",
   "email-fail": "メールの送信に失敗しました",
@@ -563,7 +563,7 @@
   "log-in": "ログイン",
   "loginPopup-title": "ログイン",
   "memberMenuPopup-title": "メンバー設定",
-  "grey-icons": "グレイアイコン",
+  "grey-icons": "Grey Icons",
   "members": "メンバー",
   "menu": "メニュー",
   "move-selection": "選択したものを移動",
@@ -571,8 +571,8 @@
   "moveCardToBottom-title": "最下部に移動",
   "moveCardToTop-title": "先頭に移動",
   "moveSelectionPopup-title": "選択したものを移動",
-  "copySelectionPopup-title": "選択範囲をコピー",
-  "selection-color": "色を選択",
+  "copySelectionPopup-title": "Copy selection",
+  "selection-color": "Selection Color",
   "multi-selection": "複数選択",
   "multi-selection-label": "選択したものにラベルを設定",
   "multi-selection-member": "選択したものにメンバーを設定",
@@ -779,7 +779,7 @@
   "editCardReceivedDatePopup-title": "受付日の変更",
   "editCardEndDatePopup-title": "終了日の変更",
   "setCardColorPopup-title": "色を選択",
-  "setSelectionColorPopup-title": "選択した色を設定",
+  "setSelectionColorPopup-title": "Set selection color",
   "setCardActionsColorPopup-title": "色を選択",
   "setSwimlaneColorPopup-title": "色を選択",
   "setListColorPopup-title": "色を選択",
@@ -790,9 +790,9 @@
   "delete-board-confirm-popup": "すべてのリスト、カード、ラベル、アクティビティは削除され、ボードの内容を元に戻すことができません。",
   "boardDeletePopup-title": "ボードを削除しますか？",
   "delete-board": "ボードを削除",
-  "delete-all-notifications": "すべての通知を削除",
+  "delete-all-notifications": "Delete All Notifications",
   "delete-all-notifications-confirm": "Are you sure you want to delete all notifications? This action cannot be undone.",
-  "delete-duplicate-lists": "重複リストを削除",
+  "delete-duplicate-lists": "Delete Duplicate Lists",
   "delete-duplicate-lists-confirm": "Are you sure? This will delete all duplicate lists that have the same name and contain no cards.",
   "default-subtasks-board": "__board__ ボードのサブタスク",
   "default": "デフォルト",
@@ -972,8 +972,8 @@
   "a-endAt": "終了を変更しました",
   "a-startAt": "開始を変更しました",
   "a-receivedAt": "受付を変更しました",
-  "above-selected-card": "選択したカードを上へ",
-  "below-selected-card": "選択したカードを下へ",
+  "above-selected-card": "Above selected card",
+  "below-selected-card": "Below selected card",
   "almostdue": "期限 %s が近づいています",
   "pastdue": "期限 %s が過ぎています",
   "duenow": "期限 %s は本日です",
@@ -1006,7 +1006,7 @@
   "view-all": "全てを表示",
   "filter-by-unread": "未読でフィルタ",
   "mark-all-as-read": "全て既読にする",
-  "mark-all-as-unread": "すべての未読をマーク",
+  "mark-all-as-unread": "Mark all as unread",
   "remove-all-read": "全ての既読を削除",
   "allow-rename": "リネームを許可する",
   "allowRenamePopup-title": "リネームを許可する",
@@ -1058,7 +1058,7 @@
   "dueCardsViewChange-choice-me": "自分",
   "dueCardsViewChange-choice-all": "全ユーザー",
   "dueCardsViewChange-choice-all-description": "ユーザーに権限のあるボードから、期限が切れたすべての未完了のカードを表示します。",
-  "dueCards-noResults-title": "期限切れのカードはありません",
+  "dueCards-noResults-title": "No Due Cards Found",
   "dueCards-noResults-description": "You don't have any cards with due dates at the moment.",
   "broken-cards": "壊れたカード",
   "board-title-not-found": "ボード「%s」は見つかりませんでした。",
@@ -1333,7 +1333,7 @@
   "support-page-enabled": "Support page enabled",
   "support-info-not-added-yet": "Support info has not been added yet",
   "support-info-only-for-logged-in-users": "Support info is only for logged in users.",
-  "support-title": "サポートタイトル",
+  "support-title": "Support title",
   "support-content": "Support content",
   "accessibility": "アクセシビリティ",
   "accessibility-page-enabled": "アクセシビリティページが有効",
@@ -1407,8 +1407,8 @@
   "cron-no-paused-migrations": "No paused migrations to resume",
   "cron-migrations-resumed": "Migrations resumed successfully",
   "cron-migrations-retried": "Failed migrations retried successfully",
-  "complete": "完了",
-  "idle": "アイドル",
+  "complete": "Complete",
+  "idle": "Idle",
   "filesystem-path-description": "Base path for file storage",
   "gridfs-enabled": "GridFS Enabled",
   "gridfs-enabled-description": "Use MongoDB GridFS for file storage",
@@ -1475,30 +1475,30 @@
   "card-show-lists-on-minicard": "Show Lists on Minicard",
   "comprehensive-board-migration": "Comprehensive Board Migration",
   "comprehensive-board-migration-description": "Performs comprehensive checks and fixes for board data integrity, including list ordering, card positions, and swimlane structure.",
-  "delete-duplicate-empty-lists-migration": "重複した空リストを削除",
+  "delete-duplicate-empty-lists-migration": "Delete Duplicate Empty Lists",
   "delete-duplicate-empty-lists-migration-description": "Safely deletes empty duplicate lists. Only removes lists that have no cards AND have another list with the same title that contains cards.",
   "lost-cards": "Lost Cards",
-  "lost-cards-list": "復元されたアイテム",
-  "restore-lost-cards-migration": "紛失カードを復元",
+  "lost-cards-list": "Restored Items",
+  "restore-lost-cards-migration": "Restore Lost Cards",
   "restore-lost-cards-migration-description": "Finds and restores cards and lists with missing swimlaneId or listId. Creates a 'Lost Cards' swimlane to make all lost items visible again.",
-  "restore-all-archived-migration": "全アーカイブを復元",
+  "restore-all-archived-migration": "Restore All Archived",
   "restore-all-archived-migration-description": "Restores all archived swimlanes, lists, and cards. Automatically fixes any missing swimlaneId or listId to make items visible.",
   "fix-missing-lists-migration": "Fix Missing Lists",
   "fix-missing-lists-migration-description": "Detects and repairs missing or corrupted lists in the board structure.",
   "fix-avatar-urls-migration": "Fix Avatar URLs",
   "fix-avatar-urls-migration-description": "Updates avatar URLs for board members to use the correct storage backend and fixes broken avatar references.",
-  "fix-all-file-urls-migration": "全ファイルのURLを修正",
+  "fix-all-file-urls-migration": "Fix All File URLs",
   "fix-all-file-urls-migration-description": "Updates all file attachment URLs on this board to use the correct storage backend and fixes broken file references.",
   "migration-needed": "Migration Needed",
-  "migration-complete": "完了",
-  "migration-running": "実行中...",
+  "migration-complete": "Complete",
+  "migration-running": "Running...",
   "migration-successful": "Migration completed successfully",
   "migration-failed": "Migration failed",
-  "migrations": "マイグレーション",
+  "migrations": "Migrations",
   "migrations-admin-only": "Only board administrators can run migrations",
   "migrations-description": "Run data integrity checks and repairs for this board. Each migration can be executed individually.",
-  "no-issues-found": "問題は見つかりませんでした",
-  "run-migration": "移行を実行",
+  "no-issues-found": "No issues found",
+  "run-migration": "Run Migration",
   "run-comprehensive-migration-confirm": "This will perform a comprehensive migration to check and fix board data integrity. This may take a few moments. Continue?",
   "run-delete-duplicate-empty-lists-migration-confirm": "This will first convert any shared lists to per-swimlane lists, then delete empty lists that have a duplicate list with the same title containing cards. Only truly redundant empty lists will be removed. Continue?",
   "run-restore-lost-cards-migration-confirm": "This will create a 'Lost Cards' swimlane and restore all cards and lists with missing swimlaneId or listId. This only affects non-archived items. Continue?",
@@ -1514,8 +1514,8 @@
   "migration-progress-status": "ステータス",
   "migration-progress-details": "詳細",
   "migration-progress-note": "Please wait while we migrate your board to the latest structure...",
-  "steps": "手順",
-  "view": "ビュー",
+  "steps": "steps",
+  "view": "View",
   "has-swimlanes": "Has Swimlanes",
   
   "step-analyze-board-structure": "Analyze Board Structure",
@@ -1529,7 +1529,7 @@
   "step-create-missing-lists": "Create Missing Lists",
   "step-update-cards": "Update Cards",
   "step-finalize": "Finalize",
-  "step-delete-duplicate-empty-lists": "重複した空のリストを削除",
+  "step-delete-duplicate-empty-lists": "Delete Duplicate Empty Lists",
   "step-ensure-lost-cards-swimlane": "Ensure Lost Cards Swimlane",
   "step-restore-lists": "リストをリストア",
   "step-restore-cards": "カードをリストア",
@@ -1630,7 +1630,7 @@
   "total-operations": "Total Operations",
   "total-size": "Total Size",
   "unmigrated-boards": "Unmigrated Boards",
-  "weight": "重み",
-  "cron": "スケジュール",
+  "weight": "Weight",
+  "cron": "Cron",
   "current-step": "Current Step"
 }