Use the Changes panel to track code changes made within DevTools.
Overview
With the Changes panel, track the changes you make to:
- HTML in Sources with enabled Local overrides
- CSS in Elements > Styles or Sources
- JavaScript in Sources
The Changes panel shows only the changes you make within DevTools. If you reload either DevTools or your page, the changes disappear.
To make DevTools persist changes across page loads, follow the steps in Local overrides.
To make DevTools write changes to your local sources, follow the steps in Edit and save files with Workspaces.
Open the Changes panel
To open the Changes panel:
Press Command+Shift+P (Mac) or Control+Shift+P (Windows, Linux, ChromeOS) to open the Command Menu.
Start typing
changes, select Show Changes, and press Enter.
Alternatively, in the upper right corner, click 
Customize and control DevTools > More tools > Changes.
By default, DevTools displays the Changes panel at the bottom of your DevTools window, in the Drawer.
View and understand your changes
To view your changes:
- Open DevTools.
Make changes to your sources:
- HTML: First, enable Local overrides, then make changes in Sources
- CSS in Elements > Styles or Sources
- JavaScript in Sources
Open the Changes panel and select a file in the right-hand side of the panel.
Observe a
diffoutput that highlights the following:
The Changes panel pretty-prints the diff output automatically, so you don't have to scroll horizontally to see the changes in a single line.
Copy CSS changes
If you made changes to CSS in Elements > Styles, you can copy all of them with a single button:
Open the Changes panel and, in the right-hand side of the panel, select the CSS file you made changes to.
Click the
Copy button at the bottom of the Changes panel.
Revert all changes made to a file
To revert changes made to a file:
- On left-hand side of the Changes panel, select a file with changes to revert.
- On the action bar at the bottom, click
Revert all changes to current file.
