Will zipping already-compressed files like JPGs save much space?

Typically very little -- compressing already-compressed file types (like JPGs or MP4s) into a ZIP saves almost nothing, since they're already tightly compressed. ZIP is much more effective on text-heavy or uncompressed files.

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ZIP / UnZIP Files

Compress and extract ZIP archives in browser

Files never stored

Drop files to ZIP or a ZIP to extract

Create or extract ZIP archives

Works with any file size -- files over 50MB may just take a little longer

What is this tool?

Creates ZIP archives from multiple files, or extracts files from an existing ZIP archive, entirely in your browser.

How to use it

Upload files to compress into a ZIP, or upload a ZIP file to extract its contents. Download the result.

Compressing already-compressed file types (like JPGs or MP4s) into a ZIP typically saves very little space, since they're already tightly compressed — ZIP is much more effective on text-heavy or uncompressed files.

Watch: ZIP / UnZIP Files in Action

Watch on YouTube

Plays on YouTube (counts toward our @freedailypro channel).

Part of: Compressing Files for Sharing

Next: File Size Converter

Double-check the final size against your limit

ZIP / UnZIP Files

What is this tool?

How to use it

Watch: ZIP / UnZIP Files in Action

Frequently asked questions