ZIP to TGZ Converter
Processing entirely on your device — large files may take a moment.
ZIP Archive and Gzipped TAR (TGZ) exist for different jobs: ZIP is the archive format everyone can open: built into Windows, macOS, and every cloud storage service. Convert TGZ exactly like TAR.GZ — unpack, repack or inspect.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How ZIP compares to TGZ
| ZIP | TGZ | |
|---|---|---|
| Compression | Deflate / store | gzip (DEFLATE) |
| Encryption | ZipCrypto (weak) or AES add-on | None |
| Bundling | Multi-file with directory tree | TAR bundle, single stream |
| Best for | Universal sharing | Source releases and backups |
How to convert ZIP to TGZ
- 1
Select your files
Drag & drop your ZIP files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to TGZ". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted TGZ file individually, or grab everything at once as a ZIP archive.
About the ZIP format
ZIP (PKWARE, 1989) is the archive format the world agreed on: per-file Deflate compression (or plain store), a central directory that lets tools list and extract single files without touching the rest, and thirty-five years of universal support. Windows, macOS, Linux, phones and browsers all open ZIP natively.
Its compression ratio is middle-of-the-road next to 7z, and its encryption story is genuinely mixed: the classic ZipCrypto is broken, while AES-256 works only in tools that opted in. For maximum compatibility of everyday sharing, though, ZIP remains the only safe answer.
+ Strengths
- ✓Opens natively on every platform
- ✓Random access: extract one file, skip the rest
- ✓Thirty-five years of tooling maturity
! Limitations
- −Weaker compression than 7Z/RAR
- −Classic encryption (ZipCrypto) is broken
- −No built-in recovery records
About the TGZ format
TAR.GZ is the classic Unix distribution shape: a TAR bundle squeezed through gzip (DEFLATE-based). Every Linux package of source code, every Apache tarball, every data-science dataset arrives this way. Decompression is a pipeline — untar the gzip stream — and the format is understood everywhere Unix ideas went.
gzip compresses the whole archive as one stream, which keeps ratio decent for text-heavy trees but means reaching file #400 requires decompressing the previous 399. Modern alternatives (zstd) are faster at similar ratios, yet tar.gz remains the safest common denominator.
+ Strengths
- ✓Universally understood on Unix-like systems
- ✓Good ratio for text and source trees
- ✓Preserves Unix permissions via TAR
! Limitations
- −Single stream — no random access
- −Slower than modern zstd
- −Two-step format (tar + gzip)
Why convert ZIP to TGZ?
Converting makes sense where the strengths of TGZ meet what ZIP cannot give you. Universally understood on Unix-like systems Meanwhile Weaker compression than 7Z/RAR One pass through the converter above puts your file on the right side of that trade-off.
Frequently asked questions
Is this ZIP to TGZ converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for ZIP to TGZ?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
What about folders and directory structure?
The full directory tree is preserved: folders stay folders, and deep paths arrive exactly as they were packed in the ZIP file.
Are the files inside my ZIP archive modified?
No. Contents are unpacked in memory and repacked into TGZ byte-for-byte — the conversion changes the container, never the files inside it.