What is an XLOG file?
An .XLOG file is primarily a WeChat Log File or a compressed mobile application log file created by the Tencent Mars Xlog library. Developers use this format for high-performance logging in cross-platform applications, including WeChat. Because the data is usually compressed or encrypted, you cannot read an .XLOG file directly in a standard text editor. Sometimes, the .XLOG extension also indicates a generic XML log file, an Xelion log, or a backup log for Percona XtraBackup.
How to open XLOG files?
To read a compressed Tencent .XLOG file, you normally need the official Python decoding scripts provided in the Tencent Mars repository. For plain text or XML-based .XLOG files, standard text editors like Notepad or VS Code will work. Because there are multiple possible formats, viewer.online/xlog is the best starting point. Our tool can analyze .XLOG files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Best practices and troubleshooting
If you receive an .XLOG file and cannot open it, do not simply rename the extension to .TXT. This will not decode the file. Instead, you must decode the binary data using the proper script. Once decoded, we recommend file conversion to sensible target formats on convert.guru. You can convert readable log data to .TXT, .JSON, or .CSV formats for easier sharing and analysis.
Summary
Whether your file is a compressed WeChat Log File or a plain text system log, viewer.online/xlog is useful for identifying, inspecting, and understanding .XLOG files without installing software or dealing with compatibility problems.