Image Credit: Freepik
Launch your preferred web browser on your computer or mobile device.
Type "gmail.com" into the address bar and hit Enter. Alternatively, if you have bookmarked Gmail, click on the bookmark.
Enter your Gmail email address and password in the provided fields, then click on the "Next" button.
Once logged in, you'll be directed to your Gmail inbox. Here, you'll see a list of your emails.
Find the checkbox above the first email, left of the refresh button, in your inbox. Click to select all displayed emails.
Once emails on the first page are selected, a blue text link appears, saying "Select all X conversations in Primary." Click it.
After selecting all emails, a toolbar appears atop your inbox. Find the delete button, often a trash can icon, and click to delete selected emails.