Gzip Decoder

Decode gzip-compressed data to readable text from base64 or hex inputs.

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1,440+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Gzip Decoder processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

This tool decompresses gzip-compressed data supplied as base64 or hex. It returns decompressed text when content is human-readable and provides helpful error messages for invalid inputs. It is useful for developers, IT ops, and security analysts who need a quick view of compressed payloads from logs, APIs, or captures.
Under the hood, it uses the standard gzip/DEFLATE mechanism and UTF-8 decoding to present readable text. If the result is non-text, an optional hex dump is available to inspect raw bytes without guessing at encoding. It does not support tar.gz or multi-member archives, and it does not perform streaming decompression.
The unique value lies in supporting both base64 and hex inputs, zero-install usage, and immediate feedback for common data integrity issues, enabling faster debugging and validation across pipelines.

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How to Use

Provide inputs: supply gzip data encoded as base64 or hex in the input field.
Choose encoding: select 'base64' or 'hex' to match your data.
Observe results: decompressed_text appears below as the primary output.
If content is non-text, enable hex_dump to inspect raw bytes.
Validate: compare with expected content or re-encode to verify integrity.

Frequently Asked Questions

Find Quick Answers

What inputs are accepted?

The tool accepts gzip data encoded as base64 or hex. You must specify the encoding in the input. The input must be non-empty and a valid encoding of gzip-compressed data.

What formats can I get in output?

Decompressed content is returned as text when UTF-8 decoding succeeds. If the content is binary or non-text, you can request a hex dump of the decompressed bytes.

Are there input size limits?

There is a practical limit based on memory and processing capability. Very large gzip payloads may fail due to resource constraints; for extremely large data, consider splitting before upload.

What standards does it follow?

Decompression uses the gzip format as defined in RFC 1952 with DEFLATE encoding; text outputs favor UTF-8 unless otherwise represented in hex.

What is not supported?

Tar.gz, multi-member gzip archives, and streaming decompression are outside the current scope; the tool focuses on single-member gzip payloads provided as a whole.

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