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BZ2 to TAR Converter

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

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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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.

01

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.

02

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.

03

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 BZ2 file?

The BZ2 file format is a compressed single-file stream generated using the bzip2 algorithm, developed by Julian Seward in 1996. It achieves high compression ratios by stacking the Burrows-Wheeler Transform (BWT) for reversible block sorting, the Move-to-Front (MTF) transform, and Huffman coding for final entropy encoding. Unlike container formats such as ZIP, BZ2 performs pure compression without file aggregation; consequently, it is frequently paired with TAR (Tape Archive) in UNIX environments to create .tar.bz2 archives. The file structure utilizes a 900k block size by default and is identified by the ASCII magic bytes 'BZh'.

How to open a BZ2 file

Most UNIX and Linux distributions provide native kernel-level or shell support for BZ2 extraction via the command-line bzip2 utility or the GNU Tar suite. macOS users can decompress these files using the built-in Archive Utility. Windows operating systems lack native support for the Burrows-Wheeler algorithm and require third-party file management software, specifically 7-Zip, WinRAR, or PeaZip, to decode the stream and extract the underlying content.

BZ2 Technical Info

Full Name
Bzip2 Compressed File
Developed By
Julian Seward
Initial Release
1996
MIME Type
application/x-bzip2

What is a TAR file?

The TAR (Tape Archive) format is a file format standardized by POSIX.1-1988 and later POSIX.1-2001 (pax), originally developed for writing data to sequential I/O devices like magnetic tape drives. Unlike modern archive formats, TAR is purely a container format that concatenates multiple files into a single archive without native compression, preserving file system attributes such as user/group permissions, dates, and directory structures. It is frequently paired with compression utilities like Gzip or Bzip2 in Unix-like environments.

How to open a TAR file

Most Unix-based systems (Linux, macOS, BSD) include native support via the GNU Tar command-line utility. Windows does not natively support TAR extraction in versions prior to Windows 10 (Build 17063), requiring third-party tools. For cross-platform compatibility, 7-Zip and WinRAR are standard utilities for inspecting and extracting TAR containers.

TAR Technical Info

Full Name
Tape Archive
Developed By
AT&T Bell Laboratories
Initial Release
1979
MIME Type
application/x-tar

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Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

Convert BZ2 to TAR in seconds

Every BZ2 to TAR conversion runs on our servers, so your device stays fast and the output quality stays intact.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

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Developer API

Convert BZ2 to TAR via API

Automate BZ2 to TAR 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": "bz2-to-tar",
    "tasks": {
      "upload-file": {
        "operation": "import/upload"
      },
      "convert": {
        "operation": "convert",
        "input": "upload-file",
        "output_format": "tar"
      },
      "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.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.