docs/docs/getting-started/env-configuration.md

Environment Variable Configuration

App/Backend

Here is a list of supported environment variables used by backend/config.py intended to provide Open WebUI startup configurability. See also the logging environment variables.

Environment Variable	App/Backend
AUTOMATIC1111_BASE_URL	URL to Automatic1111's Stable Diffusion API.
COMFYUI_BASE_URL	URL to ComfyUI image generation API.
CUSTOM_NAME	Sets WEBUI_NAME but polls api.openwebui.com for metadata
DATA_DIR	Specifies the base directory for data storage, including uploads, cache, vector database, etc, default: ./data
DEFAULT_MODELS	Set a default Language Model, default: None
DEFAULT_USER_ROLE	Sets the default role assigned to new users, default: pending, options: pending, user, admin
ENABLE_ADMIN_EXPORT	Controls whether admin users can export data, default: True
ENABLE_IMAGE_GENERATION	Enables or disables image generation features, default: False
ENABLE_SIGNUP	Toggle user account creation, default: "True"
ENV	Environment setting, default: "dev"
FRONTEND_BUILD_DIR	Location of the built frontend files, default: ../build
K8S_FLAG	Support Kubernetes style Ollama hostname .svc.cluster.local
MODEL_FILTER_ENABLED	Toggle Language Model filtering, default: "False"
MODEL_FILTER_LIST	Set Language Model filter list
OLLAMA_API_BASE_URL	Deprecated, see OLLAMA_BASE_URL
OLLAMA_BASE_URL	Configure Ollama backend URL, default: "http://localhost:11434"
OLLAMA_BASE_URLS	Configure load balanced Ollama backend hosts, see OLLAMA_BASE_URL
OPENAI_API_BASE_URL	Configure OpenAI base API URL
OPENAI_API_BASE_URLS	Support balanced OpenAI base API URLs
OPENAI_API_KEY	Set OpenAI API key
OPENAI_API_KEYS	Support multiple Open API keys
PORT	Port to run Open WebUI from, default: 8080
RAG_EMBEDDING_MODEL_AUTO_UPDATE	Toggle automatic update of the Sentence-Transformer model, default: False
RAG_EMBEDDING_MODEL	Configure a Sentence-Transformer model, default: "all-MiniLM-L6-v2"
USE_CUDA_DOCKER	Build docker image with NVIDIA CUDA support, default: False
USE_OLLAMA_DOCKER	Build Docker image with bundled Ollama instance, default: "false"
USER_PERMISSIONS_CHAT_DELETION	Toggle user permission to delete chats, default: "True"
WEBHOOK_URL	Set webhook for integration with Slack/Microsoft Teams
WEBUI_AUTH_TRUSTED_EMAIL_HEADER	Define trusted request header for authentication
WEBUI_NAME	Main WebUI name, default: "Open WebUI"
WEBUI_SECRET_KEY	Override randomly generated string used for JSON Web Token
WEBUI_VERSION	Override WebUI version, default: "v1.0.0-alpha.100"
WHISPER_MODEL_AUTO_UPDATE	Toggle automatic update of the Whisper model, default: False