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TAR.7Z to TAR Converter

Convert TAR.7Z 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 TAR.7Z file?

A TAR.7Z file is a compound archive that first encapsulates files into a TAR container to preserve Unix file permissions and directory structures, followed by compression using the 7z format's LZMA or LZMA2 algorithm. This two-step process addresses the limitation of the 7z format, which does not inherently store Unix owner/group permissions, while leveraging 7-Zip's high compression ratios and solid compression capabilities. The resulting file requires decompression of the 7z layer followed by unpacking of the TAR stream.

How to open a TAR.7Z file

Opening this format requires a utility capable of handling the 7z compression algorithm. On Windows, 7-Zip is the primary tool for this specific dual-extension format. macOS users can utilize Keka or The Unarchiver, while Linux users typically employ the p7zip package via command line to first decompress the 7z layer, then extract the underlying TAR.

TAR.7Z Technical Info

Full Name
Tape Archive compressed with 7-Zip
Developed By
Igor Pavlov (7z layer)
Initial Release
1999 (7z)
MIME Type
application/x-7z-compressed

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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Convert TAR.7Z to TAR in seconds

Every TAR.7Z to TAR conversion runs on our servers, so your device stays fast and the output quality stays intact.

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

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Developer API

Convert TAR.7Z to TAR via API

Automate TAR.7Z 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": "tar.7z-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.tar.7z

# 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.