v3.26.1
Net Loss per Share - Schedule of Net Loss Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2024
Numerator:      
Net loss attributable to Braze, Inc. $ (131,287) $ (103,743) $ (129,166)
Denominator:      
Weighted-average shares of Braze, Inc. common stock outstanding, basic (in shares) 107,906,000 102,189,000 98,099,000
Less: weighted-average unvested shares of Braze, Inc. subject to repurchase (in shares) 0 0 (3,000)
Weighted-average shares used to compute net loss per share attributable to Braze, Inc. common stockholders, basic (in shares) 107,906,000 102,189,000 98,096,000
Weighted-average shares used to compute net loss per share attributable to Braze, Inc. common stockholders, diluted (in shares) 107,906,000 102,189,000 98,096,000
Earnings Per Share, Basic and Diluted [Abstract]      
Net loss per share attributable to Braze, Inc. common stockholders, basic (in dollars per share) $ (1.22) $ (1.02) $ (1.32)
Net loss per share attributable to Braze, Inc. common stockholders, diluted (in dollars per share) $ (1.22) $ (1.02) $ (1.32)