IconVault's ZIP Explorer lets you peek inside a ZIP archive without extracting it first. Drop a `.zip` file to see its full file tree, then click any entry to get an instant preview: text files (code, configs, markdown) render their contents, and images display inline. Each file has its own extract button, or you can extract all files at once.

Everything runs fully in your browser with nothing uploaded, so archives stay on your device. One honest note: browsers cannot recreate the original folder structure on download, so Extract all saves each file individually. Password-protected ZIPs are not supported. It is free to try, with a limited number of free extractions before Pro is suggested.