diff --git a/lang/languages-cs.json b/lang/languages-cs.json
new file mode 100644
index 000000000..c3c1af234
--- /dev/null
+++ b/lang/languages-cs.json
@@ -0,0 +1,20 @@
+{
+    "en": "",
+    "bg": "",
+    "de": "",
+    "es": "",
+    "fr": "",
+    "hy": "",
+    "it": "",
+    "oc": "",
+    "pl": "",
+    "ptBR": "",
+    "ru": "",
+    "sk": "",
+    "sl": "",
+    "sv": "",
+    "tr": "",
+    "zhCN": "",
+    "nb": "",
+    "eo": ""
+}
\ No newline at end of file
diff --git a/lang/main-cs.json b/lang/main-cs.json
new file mode 100644
index 000000000..9f960e93d
--- /dev/null
+++ b/lang/main-cs.json
@@ -0,0 +1,415 @@
+{
+    "contactlist": "",
+    "addParticipants": "",
+    "roomLocked": "",
+    "roomUnlocked": "",
+    "passwordSetRemotely": "",
+    "connectionsettings": "",
+    "poweredby": "",
+    "feedback": "",
+    "inviteUrlDefaultMsg": "",
+    "me": "",
+    "speaker": "",
+    "raisedHand": "",
+    "defaultNickname": "",
+    "defaultLink": "",
+    "callingName": "",
+    "audioOnly": {
+        "audioOnly": "",
+        "featureToggleDisabled": "",
+        "howToDisable": ""
+    },
+    "userMedia": {
+        "react-nativeGrantPermissions": "",
+        "chromeGrantPermissions": "",
+        "androidGrantPermissions": "",
+        "firefoxGrantPermissions": "",
+        "operaGrantPermissions": "",
+        "iexplorerGrantPermissions": "",
+        "safariGrantPermissions": "",
+        "nwjsGrantPermissions": "",
+        "edgeGrantPermissions": ""
+    },
+    "keyboardShortcuts": {
+        "keyboardShortcuts": "",
+        "raiseHand": "",
+        "pushToTalk": "",
+        "toggleScreensharing": "",
+        "toggleFilmstrip": "",
+        "toggleShortcuts": "",
+        "focusLocal": "",
+        "focusRemote": "",
+        "toggleChat": "",
+        "mute": "",
+        "fullScreen": "",
+        "videoMute": "",
+        "showSpeakerStats": ""
+    },
+    "welcomepage": {
+        "disable": "",
+        "feature1": {
+            "content": "",
+            "title": ""
+        },
+        "feature2": {
+            "content": "",
+            "title": ""
+        },
+        "feature3": {
+            "content": "",
+            "title": ""
+        },
+        "feature4": {
+            "content": "",
+            "title": ""
+        },
+        "feature5": {
+            "content": "",
+            "title": ""
+        },
+        "feature6": {
+            "content": "",
+            "title": ""
+        },
+        "feature7": {
+            "content": "",
+            "title": ""
+        },
+        "feature8": {
+            "content": "",
+            "title": ""
+        },
+        "go": "",
+        "join": "",
+        "privacy": "",
+        "roomname": "",
+        "roomnamePlaceHolder": "",
+        "sendFeedback": "",
+        "terms": ""
+    },
+    "startupoverlay": {
+        "policyText": "",
+        "title": ""
+    },
+    "suspendedoverlay": {
+        "title": "",
+        "text": "",
+        "rejoinKeyTitle": ""
+    },
+    "toolbar": {
+        "audioonly": "",
+        "mute": "",
+        "videomute": "",
+        "authenticate": "",
+        "lock": "",
+        "invite": "",
+        "chat": "",
+        "etherpad": "",
+        "sharedvideo": "",
+        "sharescreen": "",
+        "fullscreen": "",
+        "sip": "",
+        "Settings": "",
+        "hangup": "",
+        "login": "",
+        "logout": "",
+        "dialpad": "",
+        "sharedVideoMutedPopup": "",
+        "micMutedPopup": "",
+        "talkWhileMutedPopup": "",
+        "unableToUnmutePopup": "",
+        "cameraDisabled": "",
+        "micDisabled": "",
+        "filmstrip": "",
+        "profile": "",
+        "raiseHand": ""
+    },
+    "unsupportedBrowser": {
+        "appInstalled": "",
+        "appNotInstalled": "",
+        "downloadApp": "",
+        "joinConversation": "",
+        "startConference": ""
+    },
+    "bottomtoolbar": {
+        "chat": "",
+        "filmstrip": "",
+        "contactlist": ""
+    },
+    "chat": {
+        "nickname": {
+            "title": "",
+            "popover": ""
+        },
+        "messagebox": ""
+    },
+    "settings": {
+        "title": "",
+        "update": "",
+        "name": "",
+        "startAudioMuted": "",
+        "startVideoMuted": "",
+        "selectCamera": "",
+        "selectMic": "",
+        "selectAudioOutput": "",
+        "followMe": "",
+        "noDevice": "",
+        "cameraAndMic": "",
+        "moderator": "",
+        "password": "",
+        "audioVideo": ""
+    },
+    "profile": {
+        "title": "",
+        "setDisplayNameLabel": "",
+        "setEmailLabel": "",
+        "setEmailInput": ""
+    },
+    "videothumbnail": {
+        "editnickname": "",
+        "moderator": "",
+        "videomute": "",
+        "mute": "",
+        "kick": "",
+        "muted": "",
+        "domute": "",
+        "flip": "",
+        "remoteControl": ""
+    },
+    "connectionindicator": {
+        "header": "",
+        "bitrate": "",
+        "packetloss": "",
+        "resolution": "",
+        "framerate": "",
+        "less": "",
+        "more": "",
+        "address": "",
+        "remoteport": "",
+        "remoteport_plural_2": "",
+        "localport": "",
+        "localport_plural_2": "",
+        "localaddress": "",
+        "localaddress_plural_2": "",
+        "remoteaddress": "",
+        "remoteaddress_plural_2": "",
+        "transport": "",
+        "transport_plural_2": "",
+        "bandwidth": "",
+        "na": ""
+    },
+    "notify": {
+        "disconnected": "",
+        "moderator": "",
+        "connected": "",
+        "somebody": "",
+        "me": "",
+        "focus": "",
+        "focusFail": "",
+        "grantedTo": "",
+        "grantedToUnknown": "",
+        "muted": "",
+        "mutedTitle": "",
+        "raisedHand": ""
+    },
+    "dialog": {
+        "add": "",
+        "allow": "",
+        "kickMessage": "",
+        "popupError": "",
+        "passwordErrorTitle": "",
+        "passwordError": "",
+        "passwordError2": "",
+        "connectError": "",
+        "connectErrorWithMsg": "",
+        "incorrectPassword": "",
+        "connecting": "",
+        "copy": "",
+        "error": "",
+        "createPassword": "",
+        "detectext": "",
+        "failtoinstall": "",
+        "failedpermissions": "",
+        "conferenceReloadTitle": "",
+        "conferenceReloadMsg": "",
+        "conferenceDisconnectTitle": "",
+        "conferenceDisconnectMsg": "",
+        "rejoinNow": "",
+        "maxUsersLimitReached": "",
+        "lockTitle": "",
+        "lockMessage": "",
+        "warning": "",
+        "passwordNotSupported": "",
+        "internalErrorTitle": "",
+        "internalError": "",
+        "unableToSwitch": "",
+        "SLDFailure": "",
+        "SRDFailure": "",
+        "oops": "",
+        "currentPassword": "",
+        "passwordLabel": "",
+        "defaultError": "",
+        "passwordRequired": "",
+        "Ok": "",
+        "done": "",
+        "Remove": "",
+        "removePassword": "",
+        "shareVideoTitle": "",
+        "shareVideoLinkError": "",
+        "removeSharedVideoTitle": "",
+        "removeSharedVideoMsg": "",
+        "alreadySharedVideoMsg": "",
+        "WaitingForHost": "",
+        "WaitForHostMsg": "",
+        "IamHost": "",
+        "Cancel": "",
+        "Submit": "",
+        "retry": "",
+        "logoutTitle": "",
+        "logoutQuestion": "",
+        "sessTerminated": "",
+        "hungUp": "",
+        "joinAgain": "",
+        "Share": "",
+        "Save": "",
+        "recording": "",
+        "recordingToken": "",
+        "Dial": "",
+        "sipMsg": "",
+        "passwordCheck": "",
+        "passwordMsg": "",
+        "shareLink": "",
+        "settings1": "",
+        "settings2": "",
+        "settings3": "",
+        "yourPassword": "",
+        "Back": "",
+        "serviceUnavailable": "",
+        "gracefulShutdown": "",
+        "Yes": "",
+        "reservationError": "",
+        "reservationErrorMsg": "",
+        "password": "",
+        "userPassword": "",
+        "token": "",
+        "tokenAuthFailedTitle": "",
+        "tokenAuthFailed": "",
+        "displayNameRequired": "",
+        "enterDisplayName": "",
+        "extensionRequired": "",
+        "firefoxExtensionPrompt": "",
+        "rateExperience": "",
+        "feedbackHelp": "",
+        "feedbackQuestion": "",
+        "thankYou": "",
+        "sorryFeedback": "",
+        "liveStreaming": "",
+        "streamKey": "",
+        "startLiveStreaming": "",
+        "stopStreamingWarning": "",
+        "stopRecordingWarning": "",
+        "stopLiveStreaming": "",
+        "stopRecording": "",
+        "doNotShowWarningAgain": "",
+        "doNotShowMessageAgain": "",
+        "permissionDenied": "",
+        "screenSharingPermissionDeniedError": "",
+        "micErrorPresent": "",
+        "cameraErrorPresent": "",
+        "cameraUnsupportedResolutionError": "",
+        "cameraUnknownError": "",
+        "cameraPermissionDeniedError": "",
+        "cameraNotFoundError": "",
+        "cameraConstraintFailedError": "",
+        "micUnknownError": "",
+        "micPermissionDeniedError": "",
+        "micNotFoundError": "",
+        "micConstraintFailedError": "",
+        "micNotSendingData": "",
+        "cameraNotSendingData": "",
+        "goToStore": "",
+        "externalInstallationTitle": "",
+        "externalInstallationMsg": "",
+        "muteParticipantTitle": "",
+        "muteParticipantBody": "",
+        "muteParticipantButton": "",
+        "remoteControlTitle": "",
+        "remoteControlRequestMessage": "",
+        "remoteControlShareScreenWarning": "",
+        "remoteControlDeniedMessage": "",
+        "remoteControlAllowedMessage": "",
+        "remoteControlErrorMessage": "",
+        "remoteControlStopMessage": "",
+        "close": "",
+        "shareYourScreen": "",
+        "yourEntireScreen": "",
+        "applicationWindow": ""
+    },
+    "email": {
+        "sharedKey": "",
+        "subject": "",
+        "body": "",
+        "and": ""
+    },
+    "connection": {
+        "ERROR": "",
+        "CONNECTING": "",
+        "RECONNECTING": "",
+        "CONNFAIL": "",
+        "AUTHENTICATING": "",
+        "AUTHFAIL": "",
+        "CONNECTED": "",
+        "DISCONNECTED": "",
+        "DISCONNECTING": "",
+        "ATTACHED": ""
+    },
+    "recording": {
+        "pending": "",
+        "on": "",
+        "off": "",
+        "failedToStart": "",
+        "buttonTooltip": "",
+        "error": "",
+        "unavailable": ""
+    },
+    "liveStreaming": {
+        "pending": "",
+        "on": "",
+        "off": "",
+        "unavailable": "",
+        "failedToStart": "",
+        "buttonTooltip": "",
+        "streamIdRequired": "",
+        "streamIdHelp": "",
+        "error": "",
+        "busy": ""
+    },
+    "speakerStats": {
+        "hours": "",
+        "minutes": "",
+        "name": "",
+        "seconds": "",
+        "speakerStats": "",
+        "speakerTime": ""
+    },
+    "deviceSelection": {
+        "deviceSettings": "",
+        "noPermission": "",
+        "previewUnavailable": "",
+        "selectADevice": "",
+        "testAudio": ""
+    },
+    "invite": {
+        "addPassword": "",
+        "dialInNumbers": "",
+        "errorFetchingNumbers": "",
+        "hidePassword": "",
+        "inviteTo": "",
+        "loadingNumbers": "",
+        "locked": "",
+        "noNumbers": "",
+        "numbersDisabled": "",
+        "showPassword": "",
+        "unlocked": ""
+    }
+}
\ No newline at end of file