Free online BZ2 to GZ converter
How to convert BZ2 files to GZ using reliable tools and simple steps.
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How to convert bz2 to gz file
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BZ2 and GZ are both compressed archive formats commonly used on Unix-like systems. BZ2 usually refers to data compressed with bzip2, while GZ refers to data compressed with gzip. Converting from BZ2 to GZ means decompressing the original .bz2 file and recompressing the contents into a .gz file.
What is BZ2
.bz2 is a compression format known for better compression ratios than gzip in many cases, but it is often slower to compress and decompress. It is widely used for distributing single files, source code, and backups.
What is GZ
.gz is a gzip-compressed file format designed for fast compression and decompression. It is very common in Linux, web servers, logs, and software packages.
Why convert BZ2 to GZ
You may want to convert BZ2 to GZ for better compatibility, faster processing, or because a target system expects gzip-compressed files. In many workflows, .gz is easier to handle with standard tools and applications.
Best software for conversion
The best option is usually 7-Zip for Windows users or the built-in command-line tools on Linux and macOS. For direct conversion, the most reliable method is using bzip2 and gzip commands, because they preserve control over the process.
On Linux or macOS, you can use:
bunzip2 file.bz2 then gzip file
Or in one step with a pipeline:
bunzip2 -c file.bz2 | gzip > file.gz
In 7-Zip, you can extract the .bz2 file first, then compress the extracted file to .gz using Right click → 7-Zip → Add to archive and selecting gzip format if available through your workflow or compatible tool.
How to convert BZ2 to GZ
- Decompress the .bz2 file to get the original file.
- Compress the extracted file using gzip.
- Verify the new .gz file opens correctly.
Example command line conversion:
bunzip2 -c input.bz2 > input
gzip input
This creates input.gz after compression, depending on your gzip settings and file naming.
Important notes
BZ2 to GZ is not a direct format-to-format compression change; it is a decompress and recompress process. Also, if the .bz2 file contains a single compressed file, the resulting .gz will also contain that same file data, but not the original .bz2 container.
If you need a simple and dependable solution, use command-line tools on Linux/macOS or 7-Zip on Windows.
Note: This bz2 to gz conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.
BZ2 vs GZ: format comparison
How the BZ2 and GZ formats compare on the properties that matter most for this conversion.
| Property | .BZ2 bzip2-compressed file | .GZ gzip |
|---|---|---|
| Compression | Lossless | Lossless |
| Compression ratio | Medium | Medium |
| Encryption | No | No |
| Split archives | No | No |
| Recovery record | No | No |
| Operating system support | Wide | Wide |
| Typical file size | Small | Small |
| Open standard | Partly open | Partly open |
| Introduced | 1996 | 1992 |
| Developer | Julian Seward / The bzip2 project | GNU Project |
| MIME type | application/x-bzip2 | application/gzip |
Frequently asked questions
Is the BZ2 to GZ converter free?
Yes, converting BZ2 to GZ on 101convert.com is completely free. No registration, email address or installation is required.
How large can my BZ2 file be?
You can upload BZ2 files up to 1000 MB and convert up to 1 files at once in a single batch.
What happens to my uploaded files?
Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.
Do I need to install any software to convert BZ2 to GZ?
No. The BZ2 to GZ conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.
Did the conversion fail?
In most cases, the cause is an incorrect file format. Please upload a valid BZ2 file for this BZ2 to GZ conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.