Boost Your Coding Speed: Essential IntelliJ IDEA Keyboard Shortcuts

IntelliJ IDEA occupies most of a developer's day, and mastering its shortcuts can save valuable time for coffee breaks and other activities.

Shortcut Overview

The article presents a concise list of common shortcuts, highlighting the differences between Windows/Linux and macOS key bindings.

Code Editing & Autocompletion

Use Ctrl + Space (Windows/Linux) or ⌃ + Space (Mac) for basic code completion, and Ctrl + Shift + Space / ⌃ + ⇧ + Space for smart completion based on context. Refactor symbols with Shift + F6 / ⇧ + F6, comment lines using Ctrl + / or ⌘ + /, and comment blocks with Ctrl + Shift + / or ⌘ + ⇧ + /.

Navigation & Search

Jump to files with Ctrl + Shift + N / ⌘ + ⇧ + O, locate classes via Ctrl + N / ⌘ + O, and find symbols using Ctrl + Alt + Shift + N / ⌘ + ⌥ + O. Perform a global search with Ctrl + Shift + F or ⌘ + ⇧ + F, and quickly switch recent files using Ctrl + E / ⌘ + E. Navigate edit history with Ctrl + Alt + ← / ⌘ + ⌥ + ← and forward with Ctrl + Alt + → / ⌘ + ⌥ + →.

Project Structure & Navigation

Open the project view with Alt + 1 (Windows/Linux) or ⌘ + 1 (Mac), expand all methods using Ctrl + F12 / ⌘ + F12, and view class inheritance with Ctrl + H / ⌃ + H. Find implementations via Ctrl + Alt + B / ⌘ + ⌥ + B and locate callers using Ctrl + Alt + H / ⌘ + ⌥ + H.

Run & Debug Essentials

Run the current class with Shift + F10 (Windows/Linux) or ⌃ + R (Mac). Start debugging using Shift + F9 / ⌃ + D, toggle breakpoints with Ctrl + F8 / ⌘ + F8, step into with F7, step over with F8, and run to cursor via Alt + F9 / ⌥ + F9. Inspect variable values using Alt + F8 / ⌥ + F8.

Conclusion

The purpose of memorizing shortcuts is not to recall keys for their own sake, but to reduce mouse usage, write better code faster, and ultimately save time—allowing you to leave work earlier.