VS Code Timeline View Explained

The timeline view in Visual Studio Code is a built-in feature that provides a chronological history of events for a specific file. This article explains what the timeline view displays, including Git commits and local save history, and how you can use it to compare file versions and track changes over time.

What is the Timeline View?

The Timeline view is a fully unified event source for tracking file history, located by default at the bottom of the Explorer side bar. When you select a file in your workspace, the Timeline view automatically updates to show a chronological list of events associated with that specific file.

Key Events Shown in the Timeline

The Timeline view aggregates data from multiple sources to give you a complete picture of a file’s lifecycle:

• Git Commits: If your project uses Git, the timeline displays every commit that modified the active file. Each entry shows the commit message, author, and timestamp.
• Local History: VS Code automatically tracks local saves of your files. Even if you haven’t committed your changes to Git, you can see a history of your local saves, ensuring you never lose work due to unsaved changes or accidental overwrites.
• Extension Events: Third-party extensions can contribute to the timeline. For example, testing extensions might show when tests were run on a file, or debugging tools might log debug sessions.

How to Use the Timeline View

You can interact with the timeline events to manage your code history directly within the editor:

• Compare File Versions: Clicking on any event in the timeline opens a side-by-side diff editor. This allows you to compare the file’s state at that specific moment in time with your current working copy.
• Revert to Previous States: If you need to restore a previous version of a file, you can view a local history entry, copy the previous code, or replace your current file with the historical version.
• Filter Events: A filter icon at the top-right of the Timeline panel allows you to toggle which event sources are visible, such as showing only Git commits or only local save history.