Document And Entity Information |
12 Months Ended |
|---|---|
Dec. 31, 2025 | |
| Document Information Line Items | |
| Entity Central Index Key | 0001990251 |
| Document Type | F-1 |
| Entity Registrant Name | Wellchange Holdings Company Limited |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | Unit 7 On 25th Floor Global Gateway Tower |
| Entity Address, Address Line Two | No.63 Wing Hong Street |
| Entity Address, City or Town | Kowloon |
| Entity Address, Country | HK |
| City Area Code | +852 |
| Local Phone Number | 9815-6485 |
| Entity Address, Postal Zip Code | 000000 |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Amendment Flag | false |
| Business Contact | |
| Document Information Line Items | |
| Entity Address, Address Line One | 122 East 42nd Street |
| Entity Address, Address Line Two | 18th Floor |
| Entity Address, City or Town | New York |
| City Area Code | 212 |
| Local Phone Number | 947-7200 |
| Contact Personnel Name | Cogency Global Inc. |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10168 |