How to Integrate Lovable with IntelliJ IDEA

The first step is getting your Lovable project onto GitHub so you can clone it into IntelliJ IDEA. Open your Lovable project in the browser editor. Look for the GitHub icon in the top-right corner of the interface — it shows the GitHub Octocat logo. Click it to open the GitHub panel. If you have not connected GitHub before, Lovable will guide you through an OAuth authorization flow. Once authorized, click 'Connect project', choose to create a new repository, give it a descriptive name, and click 'Transfer anyway' to confirm. Lovable will push all project files to the new repository and enable real-time sync — every change you make in Lovable's AI chat will commit to the main branch automatically. Now clone the repository into IntelliJ IDEA. Open IntelliJ IDEA and from the Welcome screen, click 'Get from VCS' (or go to File → New → Project from Version Control if you already have a project open). Select Git as the version control system, paste your repository URL (find it on GitHub under the green Code button), choose a local directory, and click Clone. IntelliJ will clone the repository and prompt you to open it. Click 'Open' and IntelliJ will index the project files. Because this is a JavaScript/TypeScript project, IntelliJ may prompt you to install the JavaScript and TypeScript plugin if you are using Community edition — click Install and restart when prompted.

IntelliJ IDEA Ultimate includes JavaScript and TypeScript support by default. If you are using Community edition, open the plugin marketplace: go to IntelliJ IDEA → Settings (or Preferences on macOS) → Plugins → Marketplace tab. Search for 'JavaScript and TypeScript' and install the JetBrains plugin. Also install the 'Tailwind CSS' plugin for autocomplete in Tailwind class attributes — search for 'Tailwind CSS' in the marketplace. Restart IntelliJ after installing plugins. Once the IDE restarts, IntelliJ needs to know where Node.js is installed so it can resolve npm dependencies and provide IntelliSense. Go to Settings → Languages and Frameworks → Node.js. Set the Node.js interpreter path to your Node.js installation — click the dropdown and IntelliJ usually detects it automatically. If not, click the folder icon and navigate to your Node.js binary (typically /usr/local/bin/node on macOS or C:\Program Files\nodejs\node.exe on Windows). Check the 'Coding assistance for Node.js' checkbox. Click Apply. IntelliJ will now use Node.js module resolution to provide IntelliSense, import suggestions, and type checking for the React and Supabase libraries in your Lovable project.

Open IntelliJ's built-in terminal by clicking the Terminal icon at the bottom of the IDE or pressing Alt+F12 (Option+F12 on macOS). In the terminal, make sure you are in the project root directory (where package.json lives — the terminal should default to this location). Run npm install to install all dependencies. This downloads React, Vite, Tailwind CSS, the Supabase client, and all other packages listed in package.json. The installation takes one to three minutes. Once complete, create an environment file for local development: create a new file called .env.local in the project root. You can do this in IntelliJ by right-clicking the project root in the Project panel, selecting New → File, and naming it .env.local. Inside the file, add your Supabase credentials — VITE_SUPABASE_URL and VITE_SUPABASE_ANON_KEY. Find these values in your Lovable project's Cloud tab (click the + icon next to Preview) or in your Supabase project's API settings. Now create a run configuration so you can start the dev server with one click. Go to Run → Edit Configurations. Click the + button, select 'npm'. Name it 'Vite Dev', set the package.json field to your project's package.json file, set the Command to 'run', and the Scripts field to 'dev'. Click OK to save. You can now start the development server by clicking the green Run button in the top toolbar or pressing Shift+F10. The IDE opens the Run console showing Vite's output, including the local URL — typically http://localhost:5173.

1VITE_SUPABASE_URL=https://your-project-id.supabase.co
2VITE_SUPABASE_ANON_KEY=your-anon-key-here

IntelliJ IDEA has a full-featured Git client built in, accessible via the Git menu in the menu bar and the Git tab at the bottom of the IDE. To commit and push local changes back to GitHub (and therefore to Lovable), make your code edits in the editor, then open the Commit window with Cmd+K (macOS) or Ctrl+K (Windows/Linux). IntelliJ shows a diff of all changed files. Review the changes, write a commit message describing what you changed, and click 'Commit and Push' to commit and immediately push to the remote. Lovable detects the new commit on GitHub's main branch within a few seconds and syncs the changes into its browser editor. To pull the latest changes that Lovable's AI committed during a chat session, use Git → Pull in the menu bar, or the pull button in the Git toolbar (the blue down-arrow icon). Always pull before starting a new editing session to avoid merge conflicts. IntelliJ's Git log view (accessible via Git → Show Git Log) shows every commit from both sources — your local edits and Lovable's AI-generated commits — with color-coded authors and diff views for each change. This gives you a complete audit trail of what the AI built versus what you edited manually, which is useful for code review.