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Drop one 7Z or two hundred. Batch conversion is not a paid feature here.
Convert 7Z to ZIP
A .7z file has to be opened by someone who has not installed 7-Zip, which is most people.
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Waiting for files/Engine: on-device/Network requests made: 0
What actually changes
7Z and ZIP are not the same picture in two wrappers.
The archive is extracted and repacked using ZIP's Deflate, which every operating system can open without any additional software.
Worth knowing first
Expect the ZIP to be significantly larger, often by 20 to 40 percent. LZMA2 with a large dictionary is far stronger than Deflate, and Deflate's window is only 32 KB, so long-range repetition across files is not exploited at all.
Questions
7Z to ZIP, answered
Why is 7z so much smaller?
LZMA2 uses a dictionary measured in megabytes, where Deflate uses 32 KB. It finds repetition across whole files that ZIP cannot see.
Does ZIP support encryption?
Yes, AES-256 in modern implementations, though the older ZipCrypto option is weak and should not be used.
How to convert 7Z to ZIP
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Choose your settings
ZIP Archive is lossless, so nothing is thrown away in the conversion.
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Download
Converted and deleted the moment it finishes. Never written to permanent storage.