TZ2 Converter

How to Convert TZ2 to Any Format

1. Upload Your TZ2 File: Click "Add Files" or drag and drop your .tz2 archive — you can also pull files in from Google Drive or Dropbox. Drop in several at once and each is handled in the same job.
2. Pick an Output Format: Choose the target from the output dropdown — ZIP (pre-selected), 7Z, TAR, TAR.GZ, TAR.BZ2, TAR.XZ, RAR, TGZ, TB2, or TZ2. ZIP is the safest universal choice; the TAR.* targets keep the archive on Unix-style compression.
3. Set Single or Individual Archives: Use the "Single Archive" toggle to repack everything into one output file, or switch to "Individual Archives" to get a separate archive per uploaded file.
4. Convert and Download: Click Convert. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared.

Popular TZ2 Conversions

• TZ2 to ZIP — repack to the format every OS opens natively, no extra tools
• TZ2 to 7Z — tighter compression with open-source 7-Zip
• TZ2 to TAR — strip the bzip2 layer down to a plain, uncompressed tarball
• TZ2 to TAR.GZ — gzip is faster to decompress and more widely scriptable than bzip2
• TZ2 to TAR.XZ — re-compress with xz/LZMA for a smaller archive
• TZ2 to TAR.BZ2 — write out the same bzip2 archive under the standard long extension
• TZ2 to RAR — for workflows built around WinRAR
• TZ2 to TGZ — the short-extension form of a gzip-compressed tar

Why Convert a TZ2 File?

.tz2 is one of the short single-extension aliases for a bzip2-compressed tar archive — the same thing more commonly written .tar.bz2 or .tbz2. Under the hood it is a TAR archive (which bundles files together while preserving their names, directory structure, timestamps, ownership, and Unix permissions) that has then been compressed with bzip2, a lossless compressor released in 1996 by Julian Seward that uses the Burrows–Wheeler transform. The .tar.bz2, .tbz2, .tb2, .tbz, and .tz2 extensions are interchangeable names for the same container.

The reason most people convert away from .tz2 is simply that the extension is uncommon. The contents are standard, but the unusual three-character name confuses some unarchivers and double-click handlers — even though 7-Zip, The Unarchiver, tar, and most Linux file managers open it fine. Converting solves a few concrete problems:

• Universal compatibility — Repack to ZIP and the archive opens with a double-click on Windows, macOS, and ChromeOS with zero extra software. This is the most common reason to leave the bzip2-tar family.
• Faster or smaller compression — bzip2 sits in the middle: it compresses more tightly than gzip but is slower, while xz/LZMA is usually smaller still at the cost of slower compression. Re-pack to TAR.GZ for quicker, more scriptable decompression, or TAR.XZ when you want a smaller archive.
• Drop the compression entirely — Convert to plain TAR when you want the uncompressed tarball, for example before piping it into another tool or re-compressing with a different codec.
• Standardize the extension — Convert to TAR.BZ2 to keep the exact same bzip2 archive but under the long, widely recognized extension that build scripts and package tooling expect.

TZ2 vs. Common Conversion Targets

Compression ratios depend heavily on the data; the "typical size" column reflects general behavior on mixed text-and-binary content, not a guarantee for any specific file.

Frequently Asked Questions

What is a .tz2 file?

A .tz2 file is a tar archive that has been compressed with bzip2 — identical in content to a .tar.bz2 or .tbz2 file, just using one of the shorter single-extension names. Inside, TAR bundles the original files and folders (keeping their structure, timestamps, and Unix permissions), and bzip2 then compresses that bundle losslessly. Because .tz2 is an uncommon spelling of a common format, the simplest fix when a program won't open it is to convert it to ZIP or to rename/repack it as .tar.bz2.

What program opens a TZ2 file?

On Linux and macOS, the tar command opens it directly (tar -xjf file.tz2), and the macOS Archive Utility / The Unarchiver handle it on double-click. On Windows there's no built-in handler, but the free, open-source 7-Zip opens .tz2 after you point it at the file (Windows 11 also added native tar/tar.bz2 extraction). If your tool refuses the .tz2 extension specifically, converting to ZIP here sidesteps the problem entirely.

Will I lose any files or quality converting TZ2?

No. Both bzip2 and the formats you convert to (ZIP, 7Z, gzip, xz) are lossless, so every byte of the original files is preserved — converting only changes how they are packed and compressed, never the file contents. The one thing to know is that ZIP's handling of Unix file permissions and ownership is less consistent across tools than tar's, so if those POSIX attributes matter for your workflow, convert to TAR, TAR.GZ, or TAR.XZ rather than ZIP.

Should I convert TZ2 to ZIP or 7Z?

Choose ZIP for maximum compatibility — it opens with no extra software on Windows, macOS, and ChromeOS, which is what most people sending or storing an archive actually need. Choose 7Z when smaller file size matters more than universal support: 7-Zip's LZMA compression usually produces a tighter archive than bzip2 or ZIP's DEFLATE, at the cost of needing a 7-Zip-aware tool to open it. If you want to stay in the tar family but speed up decompression, TAR.GZ is the practical middle ground.

How does bzip2 compare to gzip and xz?

bzip2 generally compresses more tightly than gzip (which uses DEFLATE) but is slower to both compress and decompress. xz, which uses LZMA2, typically produces smaller archives than bzip2 with notably faster decompression, though its compression step is the slowest of the three. In practice: pick TAR.GZ when speed and broad script support matter, TAR.BZ2/TZ2 as a balanced middle, and TAR.XZ when you want the smallest archive and don't mind a slower pack.

Is there a file size limit, and is the conversion private?

There's no fixed per-file cap, and converting an archive is fast because it's a repack rather than a media re-encode — in our testing, a 50 MB .tz2 re-packed to ZIP in a few seconds. The real constraint is upload size and your connection speed for very large archives. Every file is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up and no watermark, and nothing is ever shared or made public.