Joint Venture and Equity Method Investment - Schedule of Intercompany Eliminations (Details) - USD ($)		3 Months Ended			6 Months Ended
		Jul. 31, 2023		Jul. 31, 2022	Jul. 31, 2023		Jul. 31, 2022	Jan. 31, 2023
Noncontrolling Interest [Line Items]
Revenue		$ 139,581,000		$ 101,041,000	$ 266,459,000		$ 188,448,000
Cost of revenue		14,696,000		13,030,000	28,635,000		22,878,000
Gross profit		124,885,000		88,011,000	237,824,000		165,570,000
Sales and marketing		92,116,000		80,689,000	178,653,000		147,399,000
Research and development		49,007,000		39,520,000	99,394,000		71,350,000
Total operating expenses		178,942,000		153,313,000	350,114,000		273,745,000
Loss from operations		(54,057,000)		(65,302,000)	(112,290,000)		(108,175,000)
Interest income		9,112,000		3,064,000	16,427,000		3,590,000
Total other income (expense), net		(1,330,000)		1,500,000	(1,077,000)		19,948,000
Net loss		(51,208,000)		(61,497,000)	(104,107,000)		(88,110,000)
Net loss attributable to noncontrolling interest		(1,128,000)		(2,473,000)	(1,558,000)		(2,987,000)
Cash and cash equivalents		273,225,000	[1]	410,757,000	273,225,000	[1]	410,757,000	$ 295,402,000	[1]
Property and equipment, net	[1]	4,080,000			4,080,000			5,797,000
Operating lease right-of-use assets		673,000	[1]		673,000	[1]		998,000
TOTAL ASSETS	[1]	1,189,069,000			1,189,069,000			1,169,200,000
Total liabilities	[1]	357,829,000			357,829,000			344,475,000
Variable Interest Entity, Primary Beneficiary
Noncontrolling Interest [Line Items]
Revenue		1,609,000		1,020,000	3,073,000		2,113,000
Cost of revenue		560,000		413,000	1,051,000		712,000
Gross profit		1,049,000		607,000	2,022,000		1,401,000
Sales and marketing		1,960,000		1,865,000	4,044,000		3,252,000
Research and development		727,000		1,909,000	2,683,000		2,837,000
General and administrative		1,407,000		3,539,000	(37,000)		4,293,000
Total operating expenses		4,094,000		7,313,000	6,690,000		10,382,000
Loss from operations		(3,045,000)		(6,706,000)	(4,668,000)		(8,981,000)
Interest income		240,000		142,000	555,000		210,000
Total other income (expense), net		293,000		339,000	562,000		1,012,000
Net loss before income taxes		(2,512,000)		(6,225,000)	(3,551,000)		(7,759,000)
Net loss		(2,512,000)		(6,225,000)	(3,551,000)		(7,759,000)
Net loss attributable to noncontrolling interest		(1,128,000)		$ (2,473,000)	(1,558,000)		$ (2,987)
Cash and cash equivalents		47,671,000			47,671,000			56,744,000
Property and equipment, net		848,000			848,000			1,135,000
Operating lease right-of-use assets		673,000			673,000			998,000
Other assets		3,273,000			3,273,000			3,950,000
TOTAL ASSETS		52,465,000			52,465,000			62,827,000
Total liabilities		$ 7,277,000			$ 7,277,000			$ 8,871,000

[1] (1) As of July 31, 2023 and January 31, 2023, the condensed consolidated balance sheet includes assets of the consolidated variable interest entity, GitLab Information Technology (Hubei) Co., LTD (“JiHu”), of $52.5 million and $62.8 million, respectively, and liabilities of $7.3 million and $8.9 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 12. Joint Venture and Equity Method Investment” for further discussion.