| Cover | Sep. 26, 2023 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Sep. 26, 2023 |
| Current Fiscal Year End Date | --12-31 |
| Entity File Number | 001-40910 |
| Entity Registrant Name | Rubicon Technologies, Inc. |
| Entity Central Index Key | 0001862068 |
| Entity Tax Identification Number | 88-3703651 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 335 Madison Avenue |
| Entity Address, Address Line Two | 4th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10017 |
| City Area Code | (844) |
| Local Phone Number | 479-1507 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Class A common stock, par value $0.0001 per share | |
| Title of 12(b) Security | Class A common stock, par value $0.0001 per share |
| Trading Symbol | RBT |
| Security Exchange Name | NYSE |
| Warrants, each exercisable for one share of Class A common stock at an exercise price of $11.50 per share | |
| Title of 12(b) Security | Warrants, each exercisable for one share of Class A common stock at an exercise price of $11.50 per share |
| Trading Symbol | RBT WS |
| Security Exchange Name | NYSE |
