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ZIP to 7Z

LZMA2 compression: usually a good deal smaller than the ZIP it came from.

More free conversions, where you upload. The Fylane extension does the same work inside any upload form, on its own free share every day.Add to Chrome

How to convert ZIP to 7Z

  1. Drop the archive.
  2. Nothing to choose.
  3. Press Convert and download the 7Z.

What happens to your file

7-Zip unpacks the archive on Fylane’s servers into a scratch folder — a thousand files and 64 MB unpacked at most — and packs the same files, paths kept, into a .7z with LZMA2 at the normal level. Text, code and documents shrink well; already-compressed photos and videos hardly move. Deleted on schedule.

A password-protected archive is refused by name; the 7Z is never password-protected.

Questions

Who can open a 7Z?

7-Zip on Windows, The Unarchiver or Keka on a Mac, p7zip on Linux. Not Windows Explorer or the Mac Finder by themselves — send a ZIP to people who might not have those.

Do it once, not on every form

Fixing a file here means downloading it and going back to the form. The Fylane extension does this work inside the form instead, on the file you already have.

And it keeps the result. The next application that asks for a résumé, a cover letter and a photo fills all three from one tap, each one refitted to what that site accepts.

Your files stay in the browser, encrypted, on your machine. Nothing is uploaded to keep them and nothing is sent anywhere to fill a form.

Filmed from the extension: three upload fields on a job application, filled from one tap.

Add to Chrome — freeWhat it does

Do this in code

curl -X POST https://api.fylane.dev/v1/jobs \
  -H "Authorization: Bearer $FYLANE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "file_id": "<file id>",
    "operation": "archive.convert",
    "options": {
      "to": "7z"
    }
  }'

The same operation, archive.convert — Any archive 7-Zip reads — 7z, RAR, tar, gzip, zip — rewritten as a ZIP or, by `to`, a 7z or tar.gz, names and paths kept; a thousand files and 64 MB unpacked at most. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.