| Document and Entity Information Document | Jan. 05, 2022 |
| Entity Information [Line Items] | |
| Document Type | 8-K |
| Document Period End Date | Jan. 5, 2022 |
| Entity Central Index Key | 0001617553 |
| Amendment Flag | false |
| Entity Registrant Name | ZipRecruiter, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-40406 |
| Entity Tax Identification Number | 27-2976158 |
| Entity Address, Address Line One | 604 Arizona Avenue, |
| Entity Address, City or Town | Santa Monica, |
| Entity Address, State or Province | CA |
| Entity Address, Postal Zip Code | 90401 |
| City Area Code | 877 |
| Local Phone Number | 252-1062 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Class A common stock, $0.00001 par value per share |
| Trading Symbol | ZIP |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
