JavaScript and React ZIP Guides

Build browser ZIP downloads with JavaScript or React, connect remote files and object storage, handle failures, and scale large URL archives.

Choose the result you need. Each guide gives you a complete JavaScript or React path, the constraints that matter, and the next step when a browser job needs to scale.

Create ZIP archives

Create a ZIP file in the browser with JavaScript

Package files locally with no backend ZIP code.

Download multiple files as a ZIP in React

Add a multiple-file picker, download action, and tray.

Create a ZIP from remote URLs

Fetch browser-readable URLs and preserve useful filenames.

Download selected files as a ZIP in React

Connect an existing gallery, asset picker, or document list.

Connect file sources

Download S3 or R2 objects as a ZIP

Bundle signed object URLs without exposing storage credentials.

Build the download experience

Show ZIP progress and let users cancel or retry

Use the React tray or build focused custom controls.

Handle failed files and partial ZIP downloads

Keep successful files and choose when the entire job should fail.

Handle large URL archives

Create multi-GB ZIP archives from URLs with JavaScript

Move large output to Cloud and split it into practical parts.

Zip thousands of URLs with JavaScript

Run high-count URL jobs with partial results and resumable state.