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Gzip a file

Make a .gz of one file, keeping its name and date, at the level you choose, on your device. Free, with no account or uploads.

A .gz holds one file. Its name and date are kept in it, as gzip itself keeps them.

Drop a file to gzip it

Folders keep their own folders inside the ZIP. Add more at any time before you make it.

Made on your device. Nothing is uploaded.

How it works and help

A little help along the way

Follow these steps. Every option is explained underneath. Everything happens in your browser; nothing in the archive is sent anywhere.

  1. Open the archiveDrop it on the page or press Choose a file. For a ZIP cut into parts (.z01, .z02 … .zip, or .001, .002 …), choose every part at once. Nothing is uploaded, and there is no size limit but your device's.
  2. See what is insideThe page says how many files there are and how large they are once taken out. Folders open with a press; Find a file looks through every name. Press the eye beside a file to preview a picture, text, sound or a video.
  3. Type the password, if it has oneLocked files show a padlock. Type the password you were given and press Unlock. It stays on the page and is never kept.
  4. Choose the filesEvery file starts chosen. Untick what you do not want, or tick a folder to choose everything in it.
  5. Take them outIn Chrome and Edge on a computer, Extract into a folder writes the files with their folders into one you choose. In every browser, Download saves one file as it is, or several as one ZIP your device opens by itself. Each row has its own download button too.
  6. Check for damageCheck for damage reads every file in full and compares it with the checksum it was saved with, then names any file that does not match.

Questions people ask

Can I gzip several files at once?
A .gz holds exactly one file, as gzip itself makes them. To pack several files or a folder into one, make a tar.gz or a ZIP instead.
Is my original file changed?
No. A new .gz is made and downloaded, and your file stays as it was, as gzip -k leaves it on a terminal.
Are the file's name and date kept?
Yes, in the .gz header, as gzip keeps them. A name with letters outside Western European ones, such as Japanese or emoji, cannot be written there by the standard; it is left out and said, and the .gz file's own name still carries it.
Which compression level should I use?
6, where it starts, is gzip's own default and a good balance. 9 is smallest and slowest, 1 is quickest. Change it under More options, in How hard to pack.

This page is the Zip and archive tool, opened for this one job; every other tool it has is one press away. Each of its settings is explained on the Zip and archive tool's own page.

Read the step-by-step guide

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