v3.26.1
Net Loss Per Share - Schedule of Net Loss Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Numerator:    
Net Income (Loss) $ (26,591) $ (35,786)
Denominator:    
Weighted-average shares used to compute net loss per share attributable to Braze, Inc. common stockholders, basic (in shares) 110,797 104,572
Weighted-average shares used to compute net loss per share attributable to Braze, Inc. common stockholders, diluted (in shares) 110,797 104,572
Net loss per share:    
Net loss per share attributable to Braze, Inc. common stockholders, basic (in dollars per share) $ (0.24) $ (0.34)
Net loss per share attributable to Braze, Inc. common stockholders, diluted (in dollars per share) $ (0.24) $ (0.34)