ZIP guides & tutorials
Clear, practical explanations of how ZIP files work and how to use the Aback ZIP tools.
How to create a ZIP file
Learn how to create a ZIP archive from files and folders directly in your browser, with no uploads and no account.
How to extract a ZIP file
Open and extract ZIP archives online without installing software. Preview contents, pick the files you need, and download them privately.
How to split a ZIP file into parts
Split a large ZIP archive into smaller, independently valid ZIP files by target size, right in your browser.
How to merge ZIP files
Combine multiple ZIP archives into one, with deterministic handling for files that share the same name.
How to compress a ZIP file
Understand when recompressing a ZIP actually saves space, and how to read the results honestly.
What is a ZIP file?
A plain-English explanation of the ZIP format: containers, compression methods, and why ZIPs sometimes do not shrink.
ZIP vs 7Z: which archive format should you use?
Compare ZIP and 7Z on compression ratio, compatibility, encryption, and speed to pick the right format.
ZIP vs TAR: what is the difference?
TAR bundles files without compressing them; ZIP bundles and compresses. Learn when each makes sense.
ZIP64 explained: large archives beyond 4 GB
What ZIP64 is, why archives need it past 4 GB, and how browsers handle very large ZIP files.