If your goal is to fit a file under a specific MB limit (like the 25 MB Gmail cap), these tools and techniques are frequently recommended by experts: Best Used For Key Feature Maximum compression Uses LZMA/LZMA2 algorithms to outperform standard ZIP. PeaZip Speed & Security
: A comprehensive Reddit thread recommends alternatives like Magic Wormhole for encrypted transfers or 7zip for maximum compression ratios using the .7z format. MB.ZIP
: For those interested in the technical limits of the format, this famous blog post details how a non-recursive "zip bomb" can expand a 10 MB file into 281 TB. Top Tools for Reducing ZIP Size If your goal is to fit a file
: This popular Quora discussion explains why some files (like text) compress up to 90% while others (like MP3s or MP4s) barely shrink because they are already compressed. Top Tools for Reducing ZIP Size : This