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Supports: TAR.GZ
.tar.gz or .tgz files into the drop zone, or click "+ Add Files" to browse. Multi-file batches are supported — you can queue several archives in one job..tar.gz into one .rar, or switch to Individual Archives to emit a separate .rar per input — useful when you want to keep each backup independently extractable.TAR.GZ is the Unix world's default archive: tar glues files into a single stream, then gzip (DEFLATE) compresses the whole stream. It's universal on Linux and macOS, but it has two real-world weaknesses — it can't repair itself if a few bytes get corrupted in transit, and Windows users typically can't open it without installing 7-Zip or WinRAR. RAR fixes both: RAR5 adds Reed-Solomon recovery records and ships with native support in WinRAR (the most-installed third-party archiver on Windows).
.tar.gz itself has no encryption layer — you'd need to wrap it in gpg or openssl enc separately..tar.gz server dumps to .rar before shipping them to a Windows-only ops team, so they can open them without tar on PATH.| Property | TAR.GZ | RAR (RAR5) |
|---|---|---|
| Compression algorithm | DEFLATE (gzip) | RAR LZSS-based with PPMd fallback for text |
| Max dictionary size | 32 KB | Up to 1 GB |
| Built-in encryption | None (use GPG/age separately) | AES-256 CBC, PBKDF2-HMAC-SHA256 |
| Recovery records | None | Reed-Solomon, 1-100% configurable |
| Solid archive mode | Implicitly solid (one gzip stream) | Optional solid mode with reset points |
| Random access to entries | No (must stream-decompress) | Yes |
| Multi-volume split | No (use split separately) |
Yes, native |
| Native Windows support | Windows 11 build 23493+ | WinRAR / 7-Zip ubiquitous |
| Native Linux support | Default in coreutils | Needs unrar (non-free repo on Debian) |
| Specification | RFC 1952 (gzip), POSIX.1-2001 (tar) | Proprietary (RARLAB, partially documented) |
| Goal | Recommended setting |
|---|---|
| Smallest output (sacrifice speed) | Best compression, solid mode on, dictionary 256+ MB |
| Long-term cold archive (optical / flash) | Normal compression + 5-10% recovery record |
| Email or chat attachment under 10 MB | Multi-volume split with 9 MB volumes |
| Sensitive data | AES-256 with header encryption + 12+ char password |
| Speed over size | Fastest compression, no solid, 1% recovery |
Yes. The conversion fully extracts the tar stream — directories, file permissions where representable, symlinks (stored as paths), and original filenames — and then re-archives them inside RAR. The resulting .rar has the same logical tree you'd see from tar -tzf yourfile.tar.gz, just wrapped in a different container.
Partially. RAR can record file attributes, but the RAR5 spec stores POSIX permissions as an optional extra field, and not every extractor surfaces them. If you need exact permission round-trips for Linux-to-Linux transfers, stick with .tar.gz. If you're shipping to Windows users who only care about contents, RAR is fine — they'll see the files with default NTFS ACLs.
No. By default the conversion produces a plain (unencrypted) RAR with no recovery record, which keeps output the most compatible across extractors. If you need AES-256 encryption or recovery records, encrypt or add them with WinRAR / rar a -rr5p -hp locally after downloading, or open the file in WinRAR and use Add to archive with the desired settings on the Advanced tab.
If the original .tar.gz was already compressed efficiently (small text files, source code), re-packing the uncompressed contents into RAR may produce a slightly different size. RAR usually wins by 2-10% on text-heavy content thanks to its larger dictionary and PPMd algorithm, but for pre-compressed payloads inside the tarball (JPEGs, videos, already-zipped files), neither format can do much — both will hover near the raw size.
The web tool accepts archives up to the standard upload limit shown on the page (typically a few GB for guests; signed-in users get higher caps). For multi-gigabyte server backups, batch them with Individual Archives mode or split with split -b 1G before upload so each part stays within the cap.
Yes. The output is standard RAR5 (introduced in WinRAR 5.0, 2013). WinRAR 5.0+, 7-Zip 15.06+ (April 2015), The Unarchiver 4.0+, and Windows 11's built-in archive support (build 23493, June 2023) all open RAR5 natively. Linux users need unrar or p7zip-rar from their distro's non-free repository — tar itself can't open RAR.
The file contents are preserved bit-for-bit — every byte of every file inside the tar stream lands intact inside the RAR. What can shift is metadata: extended POSIX attributes, xattrs, hard-link relationships, and sparse-file holes that gzip-tar represents natively may be flattened in the RAR container. For typical document/source/media archives this doesn't matter; for system-image dumps it might.
We have you covered: see RAR to TAR.GZ to go back, TAR.GZ to 7Z for a fully free-and-open alternative with similar features, or TAR.GZ to ZIP for the most universally supported format.
Uploads travel over TLS to our servers, are processed in an isolated job, and are auto-deleted within 24 hours. We don't index contents, share files with third parties, or use them for training. If you handle regulated data (HIPAA, GDPR special categories), encrypt the archive locally before upload as defense-in-depth.