Understanding the Zoom client file directory

Below is an overview of the files, databases, and directories created and used by the Zoom desktop client. It outlines the purpose of each component, including core and user-specific databases, configuration files, cached resources, and feature-specific storage such as chat, meetings, recordings, and virtual backgrounds. This reference is intended to help administrators, IT teams, and support engineers better understand how Zoom stores data locally, troubleshoot issues, and manage client behavior across environments.

Core Database Files

Main Databases

File name	Purpose
zoomus.enc.db	Primary Zoom database storing core data such as user account information, meeting history, and contacts.
zoomus.tmp.enc.db	Temporary database file used during database operations; deleted when the process exits.
zoomus.zmdb.kvs.enc.db	Key-value storage database for various configuration and state information.
zoomus.zmdb.default.noenc.rlock.db	Unencrypted default database used to store feature toggles, experiment configurations, time zone settings, etc.
zoommeeting.enc.db	Meeting-specific database storing meeting-related data.

User-Specific Databases

File name	Purpose
zoombase_[hash].enc.db	Database based on a hashed user ID, storing user-specific data.

Functional Databases

File name	Purpose
telemetrydata.db	Stores telemetry data for usage statistics and diagnostics.
local_dns_cache.db	Local DNS cache database to improve connection performance.
process_monitoring.db	Stores process performance metrics and runtime status.
in_progress_infos.db	Tracks download progress and resume state.
zoom_conf_local_asr.enc.db	Local ASR (Automatic Speech Recognition) database used for meeting transcription.
3dCustomAvatar.enc.db	Stores components and configuration for user-created 3D avatars.
data.db	Phone business, per-user encrypted database for storing private data, isolated by user ID hash.

Note: Files with a -journal suffix are SQLite journal files used for transaction rollback and crash recovery.

Calendar database

File name	Purpose
auto-call.enc.db	Stores auto-call reminder information
calendar-file.enc.db	Information about uploaded and in-meeting shared files
calendar-history-meeting.enc.db	Meeting history records

Configuration Files

File name	Purpose
Zoom.us.ini	Main Zoom client configuration file containing application-level settings and preferences.
client.config	Client configuration file containing feature flags and server-pushed parameters.
meeting.client.config	A separate file is created for meeting chat to avoid conflicts with the standard team chat file, but it is rarely used in practice.
transcoding.ini	Video transcoding configuration file defining transcoding parameters and output formats.
viper.ini	Audio-related configuration file that stores user audio configuration preferences, audio devices, and algorithm configuration parameters.
nydus.ini	The video device and capture/rendering configuration file store user configuration preferences.

User Data Directories

Account-Related Directories

Directory	Purpose
[userID]@xmpp.zoom.us\	Stores XMPP instant messaging data for the user.
[userID]@xmpp.zoom.us_sip\	Stores SIP call-related data.
[userID]\	Encrypted user ID directory storing user-specific data.
users\	User data directory containing local user databases.

[userID]@xmpp.zoom.us\Directory

Directory name	Purpose
hash_${session_id}	Stores auto-downloaded chat files such as audio, video, images, and code snippets.
CodeSnippet	Centrally stores code snippet files in NativeChat.
CustomEmoji	Stores custom emoji files in NativeChat.
MeetingCustomEmoji	Stores custom emoji files for MeetingChat.
giphy	Stores Giphy files for NativeChat.
conf_giphy	Stores Giphy files for MeetingChat.
Stickers	Stores sticker resources in NativeChat.
GroupAvatar	Stores group avatar images.
LinkIcon	Stores link icon images.
LinkPreview	Stores link preview images.
tmp	Stores temporary files for NativeChat.
nChat	Stores auto-downloaded files for NewChat.
confres	Meeting file download storage directory.
NotificationAvatar	Stores generated notification avatar icons.
MultiAvatar	Stores MUC avatar images for search app usage.
WebImage	Stores images downloaded from web URLs pasted into chat.
unifywebview	Frontend cached business data directory.
mail	Stores mail database and business data.
calendar	Stores calendar database and business data.

[userID]@xmpp.zoom.us\DB Files

File name	Purpose
[userID]@xmpp.zoom.us.contacts.encks.db	Stores contact grouping relationship data.
[userID]@xmpp.zoom.us.sync.encks.db	Legacy database for external contact addition data.
[userID]@xmpp.zoom.us.encks.db	Stores channel and buddy information in NativeChat.
[userID]@xmpp.zoom.us.asyn.encks.db	Stores messages and chat business data in NativeChat.
[userID]@xmpp.zoom.us.idx.encks.db	DB for storing message, contact, and channel index information in NativeChat.
[userID]@xmppdev.zoom.us.msg.idx.encks.db	DB for storing only message index information in NativeChat.
[userID]@xmppdev.zoom.us.common.idx.encks.db	DB for storing only contact and channel index information in NativeChat.
[userID]@xmpp.zoom.us.msg_ext.encks.db	DB for storing session-independent messages in NativeChat.
[userID]@xmpp.zoom.us.im_partXXX.encks.db	DB for storing partitioned messages in NativeChat, session messages are stored in partitions.
[userID]@xmpp.zoom.us.meta.encks.db [userID]@xmpp.zoom.us.meta_on_bk.encks.db [userID]@xmpp.zoom.us.meta_bk.encks.db [userID]@xmpp.zoom.us.meta_rt_on_bk.encks.db [userID]@xmpp.zoom.us.meta_rt_bk.encks.db [userID]@xmpp.zoom.us.meta_bk_on_rc.encks.db	DBs for storing message metadata according to different partitioning strategies in NativeChat, session messages are stored in partitions.
[userID]@xmpp.zoom.us.XXX.doc.custom.encks.db	DB used by Docs for storing doc cache and business data.
[userID]@xmpp.zoom.us.XXX.whiteboard.custom.encks.db	DB used by Whiteboards for storing whiteboard cache and business data.
[userID]@xmpp.zoom.us.XXX.hub.custom.encks.db	DB used by Hub for storing hub cache and business data.
*.db-wal	SQLite write-ahead log file.
*.db-shm	SQLite shared memory file.

[userID]@xmpp.zoom.us\ Other Files

File name	Purpose
client.config	User-level configuration file.
[GUID].jpg / [GUID].png	File preview images when searching for files.
[Sha256 User Jid]_small	Small-sized contact avatar image.
[Sha256 User Jid]_big	Large-sized contact avatar image.
avatar_[MD5 User Jid]	Legacy small contact avatar image.
pic_[UserID]_[FileGUID]	Legacy large contact avatar image.

Chat Data Directory

Directory name	Purpose
chatcf\	Chat configuration and encrypted chat database directory.
Emojis\	Stores emoji resources.
CustomEmoji\	Stores custom emoji files.

Video and Virtual Background Directories

Virtual Backgrounds

Directory	Purpose
VirtualBkgnd_Custom\	User-created custom virtual background images.
VirtualBkgnd_Default\	Default system-provided virtual background images.
VirtualBkgnd_Video\	Virtual background video files.
VirtualBkgnd_VideoThumb\	Thumbnails for virtual background videos.

Video Filters and Effects

Directory	Purpose
VideoFilter\	Video filter resources (beauty effects, filters, etc.), stored in GUID-named subfolders.
VideoCustomFilter\	User-defined video filters.
VideoModel\	AI model files for video processing (face detection, background segmentation, etc.).

Video Layouts

Directory	Purpose
VideoLayout_Thumb\	Video layout thumbnails.
VideoLayout\	Immersive Mode template and image resource storage directory.

Meeting-Related Wallpapers

Directory	Purpose
PresenterLayoutWallpaper\	Presenter layout wallpaper and meeting wallpaper background image storage directory.
PresenterLayoutWallpaper_Thumb\	Presenter mode wallpaper thumbnails.
PersonalWallpaper/	Personal wallpaper directory - users can define their own meeting backgrounds in settings.
PersonalWallpaper_Thumb/	Personal wallpaper thumbnail directory.

3D Avatar Directories

Directory	Purpose
Custom3DAvatar\	Main directory for user-created 3D avatars.
Custom3DAvatarElementV2\	Avatar element resources (V2), such as head, skin, and clothing.
HandGestureVideo\	Hand gesture animation video resources for avatars.

Avatars and Icons

Directory name	Purpose
avatar_[hash]	User avatar cache files.
ProfilePicture_2K\	Temporary avatar cache optimized for video and chat.
ConfAvatar\	Meeting participant avatar cache.
ZoomAppIcon\	Zoom Apps icon cache directory.
ZoomAppResource\	Zoom Apps application resource directory.
logo\	Logo image cache directory.

WebView and Cache Directories

Directory	Purpose
unifywebview\	Unified WebView configuration and data.
WebviewCacheX64\	64-bit WebView cache directory (Edge WebView2).
openvino_cl_cache\	OpenVINO compute cache for AI inference acceleration.
tmp\	Temporary files directory (used by multiple components).
AppData\Local\Zoom\plugin	The directory where CEF and Webview2 Plugins are located.
UnifyWebView_Download	Default path for frontend downloads provided by the hybrid.
unifywebview\unifywebview.db	Frontend business cached data.

Meeting and Notification Directories

Directory name	Purpose
WaitingRoom\	Waiting room backgrounds and custom content.
WaitingRoom\video\	Waiting room video cache.
ZpnsNoticeImage\	Push notification image cache.
marketing_dialog\	Marketing campaign image resources.
ConfTemp\	Meeting temporary files.
pas\	Personal Audio Signature data.
SmartRecognition\	Smart video and audio recognition data.
PollingImage\	Meeting poll image resources.
Freemeeting\	Free meeting downloaded resources.
FreeMeetingTemp\	Temporary free meeting resources.
AIInterpretationVoice\	AI interpretation voice resources.

Logs and Diagnostics

Directory name	Purpose
keylogs\	Stores SSL key log information (debug environments).
net_records\	Network telemetry and request logs.
crash_snapshot\	Non-PII crash state snapshots.

Production Studio

Directory name	Purpose
MediaPlayerCache\	Caches playback data for Production Studio video scenarios.

Clips

Directory name	Purpose
VideoClips\	Root directory for Zoom Clips cache files.
VideoClips\{GUID}\	Per-clip cache directory created during clip recording.
PSWallpaper\	Clips wallpaper storage directory.

Local Recording

Directory name	Purpose
%systemdrive%\Users\\Documents\Zoom\	Stores locally recorded meeting files.

ZAPP

Directory name	Purpose
VirtualForeground_Default\	Deprecated virtual foreground directory.
VirtualForeground_Custom\	Stores custom virtual foreground images set by Zoom Apps.

DocConvert – PPT Share

Directory name	Purpose
%systemdrive%\Users\\Documents\Zoom\\converted_files	Stores images converted during PPT sharing

CCIVideo – Zoom Contact Center

Path	Purpose
%appdata%/zoom/data/cci_video/avatar_file_id	Stores avatar images for ZCC users
%appdata%/zoom/data/cci_video/vb_file_id	Stores virtual backgrounds for ZCC users
%appdata%/zoom/data/cci_video/cci_snapshot	Stores snapshot screenshots for ZCC agents
%appdata%/zoom/data/cci_video/	Files generated by the video native SDK

Remaining Files

File name	Purpose
Caches.db	Web cache database
Core.db	Core web resources database
eventdata.db	Telemetry data database
studio_recording_upld.db	Maintains studio recording upload task context
zoombase_device_[ID]	E2EE device key sentinel file
{GUID}.ics	Calendar export file