COVER - shares	3 Months Ended
	Mar. 31, 2022	Apr. 29, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	333-256188
Entity Registrant Name	1STDIBS.COM, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	94-3389618
Entity Address, Address Line One	51 Astor Place, 3rd Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10003
City Area Code	212
Local Phone Number	627-3927
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol	DIBS
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		38,067,054
Entity Central Index Key	0001600641
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q1