Initializing... drag & drop files here
Supports: TAR
.tar archive or click "Add Files". Batch is supported — drop in several TARs at once, and you can pull from your computer, Google Drive, or Dropbox..tgz extensionTAR — short for "tape archive" — was introduced to Unix in January 1979 and standardized by POSIX (the ustar and pax formats). It is a bundling format: it concatenates many files and folders into one stream, preserving Unix permissions and directory structure, but it does not compress anything. A .tar is the same total size as its contents. That single fact drives almost every reason people convert it.
.tar.gz (or its short alias .tgz) rather than ZIP, because it preserves Unix file modes and symlinks that ZIP handles less cleanly.| Format | Compresses? | Algorithm | Native open on Windows/macOS | Best for |
|---|---|---|---|---|
| TAR | No (bundle only) | — | Limited | Unix permissions, intermediate before compressing |
| TAR.GZ / TGZ | Yes | gzip (DEFLATE) | No (needs 7-Zip/Keka) | Fast, ubiquitous Unix tarballs and source releases |
| TAR.BZ2 / TB2 / TZ2 | Yes | bzip2 | No | Better ratio than gzip, slower |
| TAR.XZ | Yes | xz (LZMA2) | No | Maximum ratio; large datasets, software distros |
| ZIP | Yes | DEFLATE (typical) | Yes — double-click on both | Sharing with anyone; broadest compatibility |
| 7Z | Yes | LZMA / LZMA2 | No (needs 7-Zip/Keka) | Smallest files; high-ratio archiving |
| RAR | Yes | RAR (proprietary) | No (needs WinRAR/7-Zip) | Teams standardized on WinRAR |
Among the tar-compressor variants, the practical ordering is consistent: gzip is the fastest with the lowest ratio, bzip2 sits in the middle, and xz compresses the hardest but slowest.
No — and this is the most common misunderstanding about the format. TAR only bundles files together into one stream; it stores them uncompressed, so a .tar is roughly the same size as the sum of its contents. To make it smaller you pair it with a compressor, which is why you see .tar.gz (gzip), .tar.bz2 (bzip2), and .tar.xz (xz). Converting TAR to TAR.GZ, TAR.XZ, ZIP, or 7Z here adds that compression step.
Nothing technical — they are the same thing. .tgz is just the short, single-extension alias for .tar.gz: a TAR archive compressed with gzip. Some tools and platforms that dislike double extensions (or 8.3-style names) prefer .tgz. Pick whichever extension your recipient or build system expects; the bytes inside are identical.
It depends on who opens it. Choose ZIP if the recipient is on Windows or macOS and you want a double-click extract with no extra software, since both open ZIP natively. Choose TAR.GZ (or TGZ) if you're shipping to a Unix/Linux audience, preserving file permissions and symlinks, or distributing source code — that's the convention developers expect. For the absolute smallest file, TAR to 7Z or TAR.XZ compress harder than ZIP's standard DEFLATE.
The directory structure is preserved across every target. Unix file permissions and symlinks survive cleanly into the tar-based formats (TAR.GZ, TAR.BZ2, TAR.XZ) because they keep the original tar container. ZIP and RAR store paths and folders faithfully but represent Unix modes and symlinks less completely, so if exact permission bits matter — for a backup or a deploy artifact — stay within the .tar.* family.
For pure ratio, xz (TAR.XZ) and 7Z lead, followed by bzip2 (TAR.BZ2), with gzip (TAR.GZ) the largest of the four but the fastest to make. In our testing on a folder of mixed source code and text, the xz target was meaningfully smaller than the gzip target, while gzip finished fastest — the usual speed-versus-size tradeoff. If you're archiving rarely-accessed data, the extra xz time is worth it; for everyday transfer, gzip is the pragmatic choice.
Your file is uploaded over an encrypted (TLS) connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, and nothing is shared or made public. There's no fixed per-file cap; the real constraint is upload size and your connection speed, so multi-gigabyte archives are fine but take longer to send. You can also queue several TARs in one batch and download the results together.