EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement on Form S‑8 of CarParts.com, Inc. (formerly known as U.S. Auto Parts Network, Inc.) of our reports dated March 15, 2021, relating to the consolidated financial statements and the effectiveness of internal control over financial reporting of CarParts.com, Inc., appearing in this Annual Report on Form 10-K of CarParts.com, Inc. for the year ended January 2, 2021.

/s/ RSM US LLP

Irvine, California

March 18, 2021