Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of BlackLine, Inc. of our report dated February 21, 2025 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in BlackLine, Inc.’s Annual Report on Form 10-K for the year ended December 31, 2024.

 

/s/ PricewaterhouseCoopers LLP

Los Angeles, California

February 21, 2025

 

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