| Cover | Aug. 21, 2024 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 21, 2024 |
| Entity File Number | 001-41070 |
| Entity Registrant Name | Graphjet Technology |
| Entity Central Index Key | 0001879373 |
| Entity Tax Identification Number | 00-0000000 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | Lot 3895 |
| Entity Address, Address Line Two | Lorong 6D |
| Entity Address, City or Town | Shah Alam |
| Entity Address, Country | MY |
| Entity Address, Postal Zip Code | 40150 |
| City Area Code | +60 |
| Local Phone Number | 018 272 7799 |
| 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 ordinary shares, par value $0.0001 per share | |
| Title of 12(b) Security | Class A ordinary shares, par value $0.0001 per share |
| Trading Symbol | GTI |
| Security Exchange Name | NASDAQ |
| Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share | |
| Title of 12(b) Security | Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 per share |
| Trading Symbol | GTIWW |
