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How to Decompress GZIP Files - Step by Step Guide

Step 1

Upload or Paste GZIP Data

Start by providing the GZIP compressed data you want to decompress. GZIP uses the DEFLATE algorithm:

•
Upload .gz file: Click "Upload .gz File" to select a compressed file from your computer
•
Paste base64 data: If you have base64-encoded GZIP data, paste it directly into the text area
•
Try the sample: Click "Sample" to test with example compressed data

Example: Compressed GZIP Input

Here's what compressed GZIP data looks like in base64 format:

H4sIAAAAAAAAA6tWKkktLlGyUlAqS8wpTtVRKEjMK1HQVaoFAFBQSwcZAAAA...

This base64-encoded GZIP compressed data will be decompressed to reveal the original content.

Step 2

Decompress the Data

Click the "Decompress Now" button to extract the original content from your GZIP file. The GZIP format specification ensures reliable decompression:

•
Instant extraction: The tool decompresses your data immediately
•
View statistics: See compressed vs. decompressed file sizes
•
Read content: The decompressed text appears in the output area

Example: Decompressed Output

After decompression, the original JSON data is restored:

{
  "service": "CloudStorage Pro",
  "users": [
    {
      "id": 12345,
      "name": "Alex Johnson",
      "storage": "500GB"
    }
  ]
}

The decompressed content is now readable and ready to use!

Step 3

Copy or Download Decompressed Data

Use your decompressed content:

•
Copy to clipboard: Click to copy the decompressed text for use in other applications
•
Download as file: Save the decompressed content as a .txt file
•
Process further: Use the output with JSON Formatter or other tools

Frequently Asked Questions

How do I decompress a .gz file?

Simply upload your .gz file using the "Upload .gz File" button, then click "Decompress Now". The tool will extract the original content and display it. You can then copy or download the decompressed data.

What is the difference between gunzip and ungzip?

Both terms refer to the same process - decompressing GZIP files. gunzip is the command-line tool name in Unix/Linux, while "ungzip" is a more descriptive term meaning "undo gzip compression". They accomplish the same goal.

Is my data secure when decompressing?

Yes, all decompression happens entirely in your browser. Your files never leave your computer or get uploaded to any server. This ensures complete privacy and security for sensitive data.

Can I decompress multiple .gz files at once?

Currently, the tool processes one file at a time. For batch decompression, you would need to decompress each file individually. This ensures accurate processing and prevents errors.

What if I get a decompression error?

Decompression errors typically occur if the file is corrupted or not actually GZIP-compressed. Verify that your file has a .gz extension and was properly compressed. Try re-downloading the file if it was obtained from the internet. For programming solutions, check Python's gzip module or Node.js zlib.

Do I need to install software for GZIP decompression?

No installation required, with no limitations on file size or usage. No registration needed, and all features are available to everyone at no cost.

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