Opening TRUSTCACHE Files

The TRUSTCACHE file type is primarily associated with macOS.

TRUSTCACHE	File extension: TRUSTCACHE
	File type:	Application Trust Metadata

What is a TRUSTCACHE file?

TRUSTCACHE files mostly belong to macOS. TRUSTCACHE files store metadata about the trust state of applications on macOS. They are used by Gatekeeper to determine whether an application should be allowed to run. When an application is first launched, Gatekeeper checks its signature and other attributes against the information in the TRUSTCACHE files. If the application is deemed trustworthy, it is allowed to run. Otherwise, the user is presented with a warning. The TRUSTCACHE files are updated regularly by macOS to reflect the latest information about known malicious software.

How can I open a TRUSTCACHE file?

You need a suitable software like macOS to open a TRUSTCACHE file. You need a suitable software like macOS to open a TRUSTCACHE file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your TRUSTCACHE file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a TRUSTCACHE file directly in the browser:. Just drag the file onto this browser window and drop it.

Online TRUSTCACHE Text Viewer

Choose your .trustcache file to analyze

or drag and drop it here

Online File Viewer

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.TRUSTCACHE File Won't Open? Here is What You Can Do

TRUSTCACHE files can come from different programs and aren't universally openable.

Identify the Source: These files often come from macOS system updates, iOS jailbreaking workflows, or security researchers, suggesting they contain Apple Application Trust Metadata.
Check the Header: Open the file in a hex viewer to inspect the first bytes:
- Binary data or raw CDHashes indicate a compiled kernel trust cache.
- Readable text or XML may suggest an uncompiled list of hashes.
Use the Original Software: The original program is usually required to process these security files. Likely tools include macOS system utilities, iOS jailbreak software, or specialized security scripts; if uncertain, ask the sender.
Use this Webpage: Drag and drop your file onto this webpage to detect its format, extract readable metadata, and preview its contents.

Technical Data for TRUSTCACHE File Extension

File classification:

Security

Related files:

bundle, ds_store, xip

a trustcache Application Trust Metadata is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with TRUSTCACHE files

Associate the TRUSTCACHE file extension with the correct application.
Update your software that should actually open application trust metadata files. Because only the current version supports the latest TRUSTCACHE file format. Search, therefore, e.g. on the manufacturer website after an available macOS update.
To make sure that your TRUSTCACHE file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .TRUSTCACHE file online - secure, fast, and no downloads needed.