v3.25.4
Cover - shares
6 Months Ended
Dec. 31, 2025
Feb. 02, 2026
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Dec. 31, 2025  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --06-30  
Entity File Number 333-269343  
Entity Registrant Name Protopia Global Holdings Inc.  
Entity Central Index Key 0001959585  
Entity Tax Identification Number 00-0000000  
Entity Incorporation, State or Country Code E9  
Entity Address, Address Line One Room 408B&C, 4th Floor  
Entity Address, Address Line Two Lippo Sun Plaza  
Entity Address, Address Line Three No. 28 Canton Road  
Entity Address, City or Town Tsim Sha Tsui, Kowloon  
Entity Address, Country HK  
Entity Address, Postal Zip Code 00000  
City Area Code 852  
Local Phone Number 6686-0563  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Elected Not To Use the Extended Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   21,500,000