Supplemental Financial Statement Information - Schedule of Property and Equipment, Net (Details) - USD ($)		12 Months Ended
		Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 9,789,000	$ 3,814,000
Less: Accumulated depreciation		(3,992,000)	(543,000)
Property and equipment, net	[1]	5,797,000	3,271,000
Depreciation expense		3,200,000	500,000	$ 0
Computer and office equipment
Property, Plant and Equipment [Line Items]
Property and equipment, gross		8,581,000	3,049,000
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment, gross		$ 1,208,000	$ 765,000

[1] (1) As of January 31, 2023 and January 31, 2022, the consolidated balance sheet includes assets of the consolidated variable interest entity, GitLab Information Technology (Hubei) Co., LTD (“JiHu”), of $62.8 million and $17.7 million, respectively, and liabilities of $8.9 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 Equity Method Investment” for further discussion.