| Cover | Aug. 23, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Aug. 23, 2021 |
| Entity File Number | 001-40363 |
| Entity Registrant Name | TRANSCODE THERAPEUTICS, INC. |
| Entity Central Index Key | 0001829635 |
| Entity Tax Identification Number | 81-1065054 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | TransCode Therapeutics, Inc. |
| Entity Address, Address Line Two | 6 Liberty Square |
| Entity Address, Address Line Three | #2382 |
| Entity Address, City or Town | Boston |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02109 |
| City Area Code | 857 |
| Local Phone Number | 837-3099 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.0001 par value per share |
| Trading Symbol | RNAZ |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
