v3.26.1
Cover
 12 Months Ended
Jun. 30, 2026
Jan. 31, 2027
Cover [Abstract]    
Document Type 8-K  
Document Period End Date Jun. 30, 2026  
Entity Registrant Name Braze, Inc.  
Entity Incorporation, State or Country Code DE  
Entity File Number 001-41065  
Entity Tax Identification Number 45-2505271  
Entity Address, Address Line One 63 Madison Building  
Entity Address, Address Line Two 28 East 28th Street, Floor 12  
Entity Address, City or Town New York  
Entity Address, State or Province NY  
Entity Address, Postal Zip Code 10016  
City Area Code 609  
Local Phone Number 964-0585  
Written Communications false  
Soliciting Material false  
Pre-commencement Tender Offer false  
Pre-commencement Issuer Tender Offer false  
Title of 12(b) Security Class A common stock, par value $0.0001 per share  
Trading Symbol BRZE  
Security Exchange Name NASDAQ  
Entity Emerging Growth Company false  
Amendment Flag false  
Entity Central Index Key 0001676238  
Document Information [Line Items]    
Current Fiscal Year End Date   --01-31