MinZip

Minimalistic zip file generator using native APIs. Minified code is ~3kb.

Works in browsers (Chrome >80, Firefox >113, Safari >16.4) and node (> v18)

Required APIs

• CompressionStream
• ArrayBuffer
• DataView
• TextEncoder
• Response
• Blob

Example

import MinZip from 'minzip'
const zip = new MinZip()
const blob = new Blob(['hello world'], { type: 'text/plain' })
await zip.addFile('one.txt', blob)
const zipBlob = await zip.write()

Caveats

Very new and relatively untested. Files seem very straight forward, but the Folders are a little fuzzy at this point.

Resources

• https://en.wikipedia.org/wiki/ZIP_(file_format)
• https://en.wikipedia.org/wiki/Gzip
• https://www.rfc-editor.org/rfc/rfc1952