--- description: This guide will help you run OpenMetadata UI locally in dev mode. --- # Web UI ### **Pre-requisites** Before proceeding, ensure that you have installed the node and yarn with the versions given below. ``` "node": ">=10.0.0", "yarn": "^1.22.0" ``` [**Install Node**](https://nodejs.org/en/download/)\ [**Install Yarn**](https://classic.yarnpkg.com/lang/en/docs/install/)**** Using the command below, spin up the server locally from the directory.`openmetadata-dist/target/openmetadata-*-SNAPSHOT`. ```shell # # Non-secure mode ./bin/openmetadata-server-start.sh conf/openmetadata.yaml # # Secure mode ./bin/openmetadata-server-start.sh conf/openmetadata-security.yaml ``` > Since typescript is heavily used in the OpenMetadata project, we generate the typescript types and the interface from JSON schema. We use the `QuickType` tool to generate the typescript types and interface. You can view the complete instructions [here](https://docs.open-metadata.org/open-source-community/developer/generate-typescript-types-from-json-schema) ### **Steps to Run OpenMetadata UI** Once the node and yarn is installed in the system, you can go ahead and perform the following steps to run OpenMetadata UI. **Step 1**: Run the given command to install the required dependencies. **Note:** It’s a one-time task to install dependencies. If there are any changes in the `package.json` file, then again the following steps will have to be performed. ```shell # installing dependencies > make yarn_install_cache ``` **Step 2**: Start the UI locally ```shell # starting the UI locally > make yarn_start_dev_ui ``` **Step 3:** Visit [localhost:3000](http://localhost:3000) to access the OpenMetadata UI.