Are my TAR 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 TAR to 7Z 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 TAR to 7Z lose quality?

No. 7Z 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 7Z files?

No. The conversion runs on our side and gives you a finished 7Z file; opening it needs whatever software normally handles 7-Zip Archive.

TARto7Z

Convert TAR to 7Z

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

You can convert TAR to 7Z free and without an account: drop the file above and the 7Z 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 TAR and 7Z are for

Bundles files without compressing them. The Unix packaging step, usually paired with GZ.

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

How to convert TAR to 7Z

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

TAR vs 7Z: what changes

TAR compared with 7Z
	TAR	7Z
Full name	Tape Archive	7-Zip Archive
File extension	.tar	.7z
Media type	application/x-tar	application/x-7z-compressed
Compression	Uncompressed	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.

TAR to 7Z: common questions

Are my TAR 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 TAR to 7Z 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 TAR to 7Z lose quality?: No. 7Z 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 7Z files?: No. The conversion runs on our side and gives you a finished 7Z file; opening it needs whatever software normally handles 7-Zip Archive.