srikanth-lingala/zip4j

Health v2 · maintenance only

Adoption not part of the score

2225 stars · 324 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Zip4j is a comprehensive Java library for working with zip files and streams, offering a simple API for creating, extracting, updating, and removing files from archives. It is notable as the only Java library supporting zip encryption (both AES and standard), plus Zip64 and split zip files.

Use cases

• create password-protected zip files in java
• extract encrypted zip files with aes encryption
• read and write zip streams in java
• create or extract split zip files like z01 z02
• add or remove files from an existing zip archive
• handle zip64 large archives in java

When to choose

• you need zip encryption support in Java, which built-in java.util.zip lacks
• you want a simple, low-boilerplate API for common zip operations
• you need Zip64 or split zip file support
• you are targeting JVM platforms including Android

When to avoid

• you need compression formats other than zip (e.g. tar, 7z, rar)
• you only need basic zip reading/writing and want to avoid an extra dependency
• you need maximum compression ratio control beyond store/deflate methods

Facets

library · maturity active

compression file-system cryptography files developer-tools cross-platform jvm cross-platform zip zip-encryption split-zip zip64 streams password-protected-zip android

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