XPRESS Decompress

XPRESS Decompress: Decompresses data using the XPRESS plain LZ77 algorithm (MS-XCA section 2.1).

Free · No sign-up required

Text input

Your result is ready to copy or download after running.

About XPRESS Decompress

Decompresses data using the XPRESS plain LZ77 algorithm (MS-XCA section 2.1). Similar to the Windows API RtlDecompressBuffer with COMPRESSION_FORMAT_XPRESS.

Input: binary bytes. Output: binary bytes.

Format reference: XPRESS Decompress background and specification

Example

Use “Try example” to load this public sample and its settings, then run it.

Input

Sample file · 45 bytes

Download the sample

Result

GHOST//RECOVER data recovery engine.

Parameters

This tool does not need additional parameters.

Before interpreting the result

Select the actual container or compression format: gzip, zlib and raw DEFLATE are different. Decompression can expand small inputs substantially. The runner limits output and execution time.

How to use this page

  1. Paste your input or open a local file.
  2. Adjust tool options if needed, then choose Run tool.
  3. Copy the result or download the original output bytes.

Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.

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