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Document format · .zip

ZIP: what it’s for

ZIP is the universal archive: bundle many files into one, compress them for faster sharing, and open the result on any OS made this century. Use it for email attachments, downloads, backups, and project handoffs — create archives and peek inside them before extracting.

Strengths

  • Opens natively on Windows, macOS, Linux, iOS, and Android
  • Preview archive contents with sizes before extracting anything
  • Create ZIP archives from any files locally in your browser
  • Solid compression for documents, code, and uncompressed data

Honest limits

  • Already-compressed files (JPG, MP4, ZIP) barely shrink further — sometimes grow
  • Password-protected AES-256 archives may refuse to open; use desktop 7-Zip for those
  • Very large archives (hundreds of MB, thousands of files) strain mobile browsers
  • ZIP stores no permissions or symlinks reliably — use tar for deployments

Free ZIP tools

Every tool runs in your browser — files never leave your device. Badges say exactly what each tool does with ZIP.

ZIP FAQs

Can I see what's inside a ZIP before extracting?

Yes — the extractor lists every file with sizes instantly using local parsing, so a huge download reveals its contents before you commit disk space.

Why didn't my ZIP get much smaller?

Photos, videos, and music are already compressed — ZIP cannot squeeze them further. It shines on documents, code, and raw data.

Do password-protected ZIPs work?

Standard ZipCrypto passwords work where supported; AES-256 encrypted archives may refuse — the tool says so upfront instead of failing mid-extract.

Is ZIP processing private?

Yes. Creating and extracting archives runs locally in your browser; file contents never upload.