Click the "Select File" button above, and choose your GCH file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert GCH to another file type
To convert your GCH file to another format, you need GCC or other Developer software.
Convert a file to GCH
To convert other file formats to the "Compiled Header File" file type, you need software like GCC or a similar tool.
About GCH files
The .GCH extension represents two distinct, technical file types that often confuse users due to their binary nature. Most commonly, it serves as a GCC Precompiled Header, generated by the GNU Compiler Collection to accelerate C and C++ compilation times. While these files significantly speed up builds by caching processed header information, they are strictly version-dependent and architecture-specific. A .GCH file compiled on one machine often causes "file format not recognized" errors on another, and they can consume significant disk space compared to standard H source headers.
Alternatively, gamers encounter .GCH files as Game Client History logs associated with Wargaming.net titles like World of Tanks. These files are generated during gameplay or crashes and contain diagnostic data. The friction arises because these logs are often proprietary or binary-encoded, making them unreadable in standard text editors like Notepad++.
For developers dealing with build errors, the pragmatic solution is rarely conversion, but rather deleting the stale .GCH to force a clean recompilation. For gamers and archivists trying to decipher crash data, the goal is to extract readable text.
Convert.Guru analyzes your GCH file, detects the exact format, and lets you read the text inside.
If you want to convert GCH file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use GCC or similar software from the "Compiler Cache & Crash Logs" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to GCH, try GCC or another comparable tool in the "Compiler Cache & Crash Logs" category.
The GCH Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our GCH converter.