Are my 7Z files uploaded anywhere?

Yes — this conversion needs software that cannot run in a browser, so the file is uploaded over an encrypted connection. It is deleted as soon as the job finishes, and the result is removed after 60 minutes.

Is converting 7Z to GZ free?

The free plan covers three server conversions a day, for files up to 25 MB. There is no watermark on the result.

Does converting 7Z to GZ lose quality?

No. GZ stores the same content without discarding anything, so the result is identical in quality to the original. The files come out byte for byte. What does not survive is anything the container held about them rather than in them — a password, and on some formats the original permissions and timestamps.

Do I need to install anything to open GZ files?

No. The conversion runs on our side and gives you a finished GZ file; opening it needs whatever software normally handles Gzip Archive.

7ZtoGZ

Convert 7Z to GZ

Up to 3 files at once, 100 with Pro. Mixed formats are fine.

You can convert 7Z to GZ free and without an account: drop the file above and the GZ is ready to download in a second or two. The file is sent over an encrypted connection, converted on our server and deleted as soon as the job finishes.

What 7Z and GZ are for

Compresses harder than ZIP but needs its own tool on most systems.

Compresses a single file. Combined with TAR it becomes the standard Unix archive.

How to convert 7Z to GZ

Drop your 7Z file onto this page, or click to pick one.
Choose GZ as the target and start the conversion.
Download the finished GZ file.

7Z vs GZ: what changes

7Z compared with GZ
	7Z	GZ
Full name	7-Zip Archive	Gzip Archive
File extension	.7z	.gz, .tgz
Media type	application/x-7z-compressed	application/gzip
Compression	Lossless — nothing is discarded	Lossless — nothing is discarded

Quality: Nothing is lost. The result holds exactly the same picture, text or data as the original.
Where it runs: This conversion runs on our server, because it needs software a browser cannot run.
What can be lost: The files come out byte for byte. What does not survive is anything the container held about them rather than in them — a password, and on some formats the original permissions and timestamps.

7Z to GZ: common questions

Are my 7Z files uploaded anywhere?: Yes — this conversion needs software that cannot run in a browser, so the file is uploaded over an encrypted connection. It is deleted as soon as the job finishes, and the result is removed after 60 minutes.
Is converting 7Z to GZ free?: The free plan covers three server conversions a day, for files up to 25 MB. There is no watermark on the result.
Does converting 7Z to GZ lose quality?: No. GZ stores the same content without discarding anything, so the result is identical in quality to the original. The files come out byte for byte. What does not survive is anything the container held about them rather than in them — a password, and on some formats the original permissions and timestamps.
Do I need to install anything to open GZ files?: No. The conversion runs on our side and gives you a finished GZ file; opening it needs whatever software normally handles Gzip Archive.