| Cover | Feb. 17, 2025 |
| Cover [Abstract] | |
| Entity Registrant Name | KARBON-X CORP. |
| Entity Central Index Key | 0001729637 |
| Document Type | 8-K |
| Amendment Flag | false |
| Entity Emerging Growth Company | true |
| Document Period End Date | Feb. 17, 2025 |
| Entity Ex Transition Period | false |
| Entity File Number | 000-56002 |
| Entity Incorporation State Country Code | NV |
| Entity Tax Identification Number | 82-2882342 |
| Entity Address Address Line 1 | 1720 54- 5 Ave SW |
| Entity Address Address Line 2 | Calgary |
| Entity Address City Or Town | Alberta |
| Entity Address Country | CA |
| Entity Address Postal Zip Code | T2P 0M2 |
| City Area Code | 778 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Local Phone Number | 256-5730 |
| Security 12b Title | Common Stock |
| Trading Symbol | Karx |
