Balance Sheet Components - Schedule of Accrued Expenses and Other Current Liabilities (Details) $ in Thousands	1 Months Ended
	Feb. 28, 2021 d	Apr. 30, 2022 USD ($)		Jan. 31, 2022 USD ($)
Business Acquisition [Line Items]
Accrued expenses		$ 9,224		$ 8,605
Income taxes payable		576		319
ESPP employee contributions		10,632		6,557
Indirect taxes payable		1,495		4,044
Acquisition related contingent cash consideration		3,065		3,029
Other current liabilities		4,173		2,017
Accrued expenses and other current liabilities		29,165	[1]	$ 24,571
JiHu | Variable Interest Entity, Primary Beneficiary
Business Acquisition [Line Items]
Other current liabilities		$ 2,900
Loan payable, period (in days) | d	10

[1] (1) As of April 30, 2022 and January 31, 2022, the condensed consolidated balance sheet includes assets of the consolidated variable interest entity, GitLab Information Technology (Hubei) Co., LTD (“JiHu”), of $45.3 million and $17.7 million, respectively, and liabilities of $6.8 million and $3.7 million, respectively. The assets of JiHu can be used only to settle obligations of JiHu and creditors of JiHu do not have recourse against the general credit of the Company. Refer to “Note 11. Joint Venture and Deconsolidation of Majority Owned Subsidiary” for further discussion.