Add your GZ file
Drop one or more .gz files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
GZ to TAR
Repacking a .gz archive as .tar moves the same files into a container with different compression and compatibility trade-offs. Free, private, and validated — the file never leaves your browser.
Private for supported formats — processed in your browser
Runs on your deviceConvert supported files
Drop GZ files here
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.About converting Gzip stream to TAR archive
Repacking a .gz archive as .tar moves the same files into a container with different compression and compatibility trade-offs. A .gz file is a single data stream compressed with gzip. Note the singular: gzip compresses exactly one file, so bundling several requires wrapping them in a tar first — which is why .tar.gz is everywhere while a multi-file bare .gz simply does not exist.
A .tar file is a tape archive: many files and directories laid end to end in a single uncompressed stream, preserving Unix permissions, owners, and symlinks. It bundles but does not compress — that job is delegated to gzip, bzip2, or xz layered on top. For this route the practical draw is exact preservation of Unix metadata that other archive formats drop and dead-simple, fully streamable structure — balanced against uncompressed on its own, so bare .tar files are as large as their contents, which is worth knowing before you commit a large batch.
Why convert GZ to TAR?
The practical trigger for this conversion is usually a mismatch: with .gz, single-stream only; it cannot bundle files by itself. Switching to .tar buys you exact preservation of Unix metadata that other archive formats drop, which is why it is the better fit for source code distribution across the Unix world. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
GZ vs TAR at a glance
| Aspect | Gzip stream (.gz) | TAR archive (.tar) |
|---|---|---|
| Format type | Container — quality depends on the codecs and settings inside | Container — quality depends on the codecs and settings inside |
| How it stores data | dEFLATE combines LZ77 matching within a 32 KB window with Huffman coding — the same algorithm inside ZIP and PNG | each file gets a 512-byte header block (name, mode, uid/gid, size, mtime, type) followed by its data padded to 512-byte boundaries |
| Strongest at | compressing single large files such as logs, SQL dumps, and disk images | source code distribution across the Unix world |
| Weak spot | single-stream only; it cannot bundle files by itself | uncompressed on its own, so bare .tar files are as large as their contents |
| Metadata | the header optionally embeds the source filename and timestamp, restorable with gunzip -N; permissions are not stored at all — in a tarball, that is the inner tar's job | records owner and group both by name and numeric id, permission bits, and modification times — extraction as root can restore ownership faithfully |
Pick TAR as the output
Select .tar in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if TAR is selectable, the route is real and validated.
Convert on your device
Press Convert. Extraction and repacking use WebAssembly builds of real archive engines (libarchive and fflate) running in your browser.
Verify and download
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid TAR file. Outputs keep the original filename with the .tar extension.
GZ to TAR questions, answered
Will converting GZ to TAR lose quality?
Since gz is container-oriented and tar is container-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .tar itself requires.
Is it private to convert GZ files here?
Yes — the .gz file is processed inside your browser tab and never uploaded. Extraction and repacking use WebAssembly builds of real archive engines (libarchive and fflate) running in your browser. Close the tab and the file is gone from memory.
Where will the TAR file work?
Every Linux distribution, macOS, and the BSDs ship tar as a core utility, and Windows 10 and later include bsdtar at the command line. Graphical tools like 7-Zip open tarballs too, though they may need two passes for compressed variants.
Will the TAR file be bigger or smaller than my GZ?
It depends on the content: each file gets a 512-byte header block (name, mode, uid/gid, size, mtime, type) followed by its data padded to 512-byte boundaries. Convert one representative file first and compare before batch-processing a large set.
What happens to the metadata in my GZ file?
In .gz, the header optionally embeds the source filename and timestamp, restorable with gunzip -N; permissions are not stored at all — in a tarball, that is the inner tar's job. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.