gildas-lormeau/zip.js

Health v2 · maintenance only

Adoption not part of the score

3879 stars · 548 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

zip.js is a BSD-3-Clause JavaScript library for creating and reading zip archives in browsers, Node.js, Deno, and Bun. It supports Zip64, AES and ZipCrypto encryption, multi-core compression via web workers, web streams, pluggable compression engines, and split archives with no third-party dependencies.

Use cases

• create zip files in the browser with javascript
• unzip archives in node.js or deno
• compress files in parallel using multiple cores
• read or write zip archives larger than 4GB with zip64
• encrypt zip entries with AES or ZipCrypto
• stream zip data incrementally with web streams
• create split zip archives

When to choose

• you need zip support across browsers and server-side runtimes with one library
• you must handle very large archives or split files
• you need encrypted zip entries (WinZIP AES or ZipCrypto)
• you want zero third-party dependencies and stream-based APIs

When to avoid

• you need formats other than zip such as tar, 7z, or rar
• you need a simple synchronous API without streams or promises
• you target very old browsers lacking Promise, TypedArray, or Streams APIs

Facets

library · maturity active

compression file-system cryptography concurrency files web-development developer-tools browser bun cross-platform zip zip64 unzip web-streams web-workers aes-encryption deflate64 split-zip no-dependencies nodejs deno

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markdown · JSON · MCP: product_card(name="gildas-lormeau/zip.js")