Basis of Presentation and Summary of Significant Accounting Policies - Narrative (Details) $ / shares in Units, shares in Millions		1 Months Ended		12 Months Ended
		Jun. 30, 2022 shares	May 31, 2021 target $ / shares shares	Jan. 31, 2023 USD ($) reporting_unit segment obligation	Jan. 31, 2022 USD ($)	Jan. 31, 2021 USD ($)	Feb. 01, 2022 USD ($)
Significant Accounting Policies [Line Items]
Foreign exchange gains (losses), net				$ 4,364,000	$ (29,140,000)	$ 23,423,000
Foreign currency translation adjustments				(5,874,000)	27,639,000	(24,005,000)
Restricted cash				2,500,000	2,500,000
Allowance for doubtful accounts				$ 1,564,000	1,098,000
Number of performance obligations | obligation				2
Deferred revenue recognized				$ 145,900,000	87,100,000	58,100,000
Remaining performance obligation				$ 435,900,000	312,400,000
Deferred contract acquisition cost, term				3 years
Advertising costs				$ 27,300,000	21,400,000	14,100,000
Award vesting period (in years)				4 years
Number of operating segments | segment				1
Number of reporting units | reporting_unit				1
Intangible assets acquired, useful life				3 years
Goodwill impairment				$ 0	$ 0	$ 0
Operating lease right-of-use assets	[1]			998,000
Operating lease liabilities				$ 1,100,000
Cumulative Effect, Period of Adoption, Adjustment
Significant Accounting Policies [Line Items]
Operating lease right-of-use assets							$ 700,000
Operating lease liabilities							$ 800,000
Internal-use software
Significant Accounting Policies [Line Items]
Property and equipment, useful life				5 years
Computers
Significant Accounting Policies [Line Items]
Property and equipment, useful life				2 years
PSUs
Significant Accounting Policies [Line Items]
RSUs granted in period (in shares) | shares		0.4
Chief Executive Officer | RSUs
Significant Accounting Policies [Line Items]
RSUs granted in period (in shares) | shares			3.0
Number of threshold stock price targets | target			8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-02-01
Significant Accounting Policies [Line Items]
Remaining performance obligation, next twelve months (as a percent)				71.00%
Remaining performance obligation, next twenty four months (as a percent)				92.00%
Minimum
Significant Accounting Policies [Line Items]
Allocation of price (as a percent)				1.00%
Minimum | Chief Executive Officer | RSUs
Significant Accounting Policies [Line Items]
Threshold stock price target (in dollars per share) | $ / shares			$ 95
Maximum
Significant Accounting Policies [Line Items]
Allocation of price (as a percent)				23.00%
Maximum | Chief Executive Officer | RSUs
Significant Accounting Policies [Line Items]
Threshold stock price target (in dollars per share) | $ / shares			$ 500
Distribution Channel One | Accounts Receivable | Credit Concentration Risk
Significant Accounting Policies [Line Items]
Concentration risk, percentage				12.00%
Distribution Channel Two | Accounts Receivable | Credit Concentration Risk
Significant Accounting Policies [Line Items]
Concentration risk, percentage					14.00%

[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.