What is a TRACE file?
A .TRACE file generally contains performance, diagnostic, or debugging data generated by a software application. Because many different programs use the .TRACE extension, the file's internal format varies heavily. Common examples include Android application execution logs from Android Studio, connection logs from AnyDesk, web debugging sessions from Charles Web Debugging Proxy, and automation logs from Microsoft Playwright. In other specific cases, it may contain a TRACES 3D Scene file created by Ton Roosendaal, a network packet capture for Wireshark, or an RF measurement trace.
How to open TRACE files?
Because a .TRACE file can belong to many different programs, you must know what software created it to open it correctly. If you open a text-based log file in Windows Notepad or Visual Studio Code, you can read the plain text easily. However, if the file contains compiled Android method traces, JSON-based Playwright logs, or packet captures, a basic text editor will show unreadable characters. In these situations, you need the original software that generated the log.
viewer.online/Identify and inspect with trace
Since .TRACE has multiple possible meanings, we recommend using viewer.online/trace to identify the actual format of your file. viewer.online/trace can analyze .TRACE 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 your file is unusually large, it might be a detailed memory access trace or a system network capture. Avoid opening massive .TRACE logs in a standard text editor, as this might crash your computer. Instead, use specialized log viewers or command-line diagnostic tools like `less`.
Software and tools
Depending on the origin of the file, popular tools to open these logs include Android Studio Profiler, Charles Web Debugging Proxy, Microsoft Windows Driver Kit, AnyDesk, and Wireshark.
Summary
viewer.online/trace is useful for identifying, inspecting, and understanding .TRACE files without installing software or dealing with compatibility problems.