How to Open a ZIP File on Your Phone
Open any ZIP archive in your browser: browse the full file tree with sizes and download only the files you need — nothing is uploaded.
Result
Someone sent you a .zip attachment and your phone only offers to "save" it? Open this page in your mobile browser, choose that archive and it is unpacked on the spot — no file-manager app, no store download, no account.
You will see every folder and file inside with its size. Tap any file to save it to your phone, or use the download-all button to pull them out one after another; photos and documents land straight in your downloads folder.
The unpacking runs inside the browser on your device, so it works the same on Android and iPhone and your files are never uploaded anywhere. Password-protected archives are the one honest exception — those need a desktop archiver.