editor.js/src/components/i18n/locales/en/messages.json

{
  "ui": {
    "blockTunes": {
      "toggler": {
        "Click to tune": "",
        "or drag to move": ""
      }
    },
    "inlineToolbar": {
      "converter": {
        "Convert to": ""
      }
    },
    "toolbar": {
      "toolbox": {
        "Add": ""
      }
    },
    "popover": {
      "Filter": "",
      "Nothing found": ""
    }
  },
  "toolNames": {
    "Text": "",
    "Link": "",
    "Bold": "",
    "Italic": ""
  },
  "tools": {
    "link": {
      "Add a link": ""
    },
    "stub": {
      "The block can not be displayed correctly.": ""
    }
  },
  "blockTunes": {
    "delete": {
      "Delete": "",
      "Click to delete": ""
    },
    "moveUp": {
      "Move up": ""
    },
    "moveDown": {
      "Move down": ""
    }
  }
}