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Drop one RAR or two hundred. Batch conversion is not a paid feature here.
A RAR arrived and the recipient has no extraction software, because no operating system opens RAR out of the box.
The archive is fully extracted and repacked as a ZIP. The files inside are identical; only the container and the compression algorithm change.
The ZIP will usually be larger. RAR's compression is genuinely better than ZIP's Deflate, particularly on solid archives of many similar files, and that efficiency is what you trade away for universal compatibility.
Yes, if the RAR is encrypted. The contents have to be decrypted before they can be repacked, and no tool can bypass that.
All parts must be present. They are one archive split across files, and missing part three means the extraction stops there.
The formats are completely different internally. Only the extension would change, and nothing would open it.
Drop one RAR or two hundred. Batch conversion is not a paid feature here.
ZIP Archive is lossless, so nothing is thrown away in the conversion.
Converted and deleted the moment it finishes. Never written to permanent storage.