TAR.BZ2 to 7Z Converter

Convert TAR.BZ2 to 7Z online for free. Fast, secure, and high-quality conversion with no sign-up or software required.

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Maximum file size is 1GB

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

Upload your file

Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

Choose an output format

Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is a TAR.BZ2 file?

A TAR.BZ2 file is a TAR archive compressed using the Bzip2 algorithm, which employs the Burrows-Wheeler transform (BWT), Move-to-Front (MTF) transform, and Huffman coding. It offers higher compression ratios than the Gzip (DEFLATE) algorithm but requires significantly more CPU resources for compression and decompression. This format is widely used in Linux distributions for packaging source code and software binaries where bandwidth conservation is prioritized over processing speed.

How to open a TAR.BZ2 file

Linux and macOS systems support this format natively via the terminal using tar -xjf or tar -xvjf. For Windows users, native support is absent, necessitating third-party software such as 7-Zip, WinRAR, or PeaZip. The format allows for streaming decompression, meaning the entire archive does not need to be read before extraction begins.

TAR.BZ2 Technical Info

Full Name: Tape Archive compressed with Bzip2
Developed By: Julian Seward
Initial Release: 1996
MIME Type: application/x-bzip2

What is a 7z file?

The 7z format is a compressed archive container created by Igor Pavlov in 1999, characterized by an open architecture and high compression ratios utilizing the LZMA and LZMA2 algorithms. It supports file sizes up to 16 exbibytes (2^64 bytes), Unicode file names, and strong AES-256 encryption, with solid compression capabilities to enhance efficiency for similar file sets. Distributed under the GNU LGPL, the format's modular design accommodates various pre-processing filters and encryption methods, establishing it as a primary standard for high-efficiency data archival.

How to open a 7z file

While Windows 11 builds utilizing the libarchive project offer native support, earlier Windows versions require the official open-source 7-Zip utility or alternatives like WinRAR and PeaZip for extraction. macOS users typically rely on third-party software such as The Unarchiver or Keka, whereas Linux distributions handle 7z archives via the p7zip package accessed through the command line or GUI managers like File Roller.

7z Technical Info

Full Name: 7z Archive Format
Developed By: Igor Pavlov
Initial Release: 1999
MIME Type: application/x-7z-compressed

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Developer API

Convert TAR.BZ2 to 7Z via API

Automate TAR.BZ2 to 7Z conversions in three steps: create a job, upload your file, then poll for the result.

# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tag": "tar.bz2-to-7z",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "7z"
      },
      "export-result": {
        "operation": "export/url",
        "input": "convert"
      }
    }
  }'

# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.tar.bz2

# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
  -H "Authorization: Bearer YOUR_API_KEY"

Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.