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SnapTools

ZIP File Creator

Runs in your browser

Bundle any files into a single, real DEFLATE-compressed ZIP archive, entirely in your browser. Nothing is uploaded.

About this tool

Most in-browser 'zip maker' tools quietly upload your files to a server to do the compression. This one doesn't need to — DEFLATE compression is a solved problem in JavaScript, so the whole job runs locally: your files never leave the tab, and the resulting archive opens correctly in every standard ZIP tool (Windows Explorer, macOS Archive Utility, 7-Zip, unzip).

How to use

  1. Add the files you want to bundle — any type, any number.
  2. Click Zip.
  3. Download the compressed archive.

When to use this tool

  • Bundling a set of documents to email as one attachment.
  • Packaging assets for a client delivery.
  • Compressing files before uploading them somewhere with a size limit.

Tips

  • Already-compressed formats (JPEG, PNG, MP4, most PDFs) barely shrink further inside a ZIP — that's expected, not a bug.
  • File and folder names are preserved exactly as added.

FAQ

Are my files uploaded?
No. Compression runs entirely in your browser using a real DEFLATE implementation. Nothing is transmitted or stored.
Will this ZIP open in Windows/macOS/Linux?
Yes — it's a standard ZIP archive, readable by any tool that opens ZIP files.

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