IntelliJ IDEA 2024.2 Help

Full Line code completion

The Full Line code completion feature uses a locally run deep learning model to suggest entire lines of code.

Suggestions are displayed in the editor as you type Java, Kotlin, JavaScript/TypeScript, or CSS code.

  • To accept an entire suggestion, press Tab.

    Alternatively, go to Code | Code Completion | Insert Inline Proposal in the main menu or configure a different shortcut.

  • To accept a suggestion word by word, press Ctrl+Right or go to Code | Code Completion | Insert Inline Proposal's Word in the main menu.

  • To accept a suggestion line by line, press End or go to Code | Code Completion | Insert Inline Proposal's Line in the main menu.

The IDE formats all suggestions and adds required brackets and quotes.

Each supported language has its own set of suggested code checks. The most basic ones, like unresolved reference checks, are available for most of the languages to guarantee that the IDE doesn't suggest non-existent variables and methods.

Full Line completion supports auto-import and uses smart filtering to avoid showing suggestions that tend to be canceled explicitly or deleted right after they were accepted.

In IntelliJ IDEA, Full Line completion is available also for Python, TypeScript, PHP, Go, and Ruby. To be able to use the feature with these languages, install a corresponding language plugin as described in Install a plugin from Marketplace.

Before you start working with Full Line code completion, note that:

  • Full Line code completion is currently not supported in Remote Development.

  • Full Line code completion requires a computer with an x64 processor that supports AVX2, or an ARM64 processor. If the AVX2 support is missing, Full Line Code Completion will be automatically disabled.

Enable the Full Line Code Completion plugin

This functionality relies on the Full Line Code Completion plugin, which is bundled and enabled in IntelliJ IDEA by default. If the relevant features are not available, make sure that you did not disable the plugin.

  1. Press Ctrl+Alt+S to open settings and then select Plugins.

  2. Open the Installed tab, find the Full Line Code Completion plugin, and select the checkbox next to the plugin name.

Enable and configure Full Line completion

  1. Press Ctrl+Alt+S to open settings and select Editor | General | Inline Completion.

  2. Select the Enable Full Line completion suggestions checkbox and select the languages that you want to use Full Line completion with.

    Models for Java and Kotlin are bundled with IntelliJ IDEA.

    For some languages, for example, for CSS and JavaScript / TypeScript, you need to manually download models by clicking Download to enable completion.

    Enabling full line code completion
  3. Disable the Enable automatic completion on typing option to show completion suggestions when you press Alt+Shift+\ instead of showing them automatically when you type.

  4. Disable the Enable syntax highlighting in completion suggestions option to show suggestions in gray italics without syntax highlighting.

Full Line completion runs locally using the models that are downloaded to your computer. From the Download models list, select the way to update these models. You can update the models automatically, manually, or confirm every update in a notification.

Change the completion shortcut

You can change the default inline completion shortcut that you use to accept suggestions.

  1. Hover over the suggestion.

  2. In the popup that appears, click and select the key that you want to use for accepting suggestions, for example, Right.

    To assign your own shortcut, select Custom.

    Full line code completion popup
  3. For quick access to the Full Line completion settings, click in the popup.

Last modified: 06 August 2024