What is a STH file?
An .STH file can belong to several different software programs. The most common use is a GPS collected survey data file created by South Surveying Instrument equipment. However, the .STH extension is also used for cross-stitch patterns in the Stitch Art Easy! software.
In system administration and security, an .STH file might be a signed Tree Head file for the Certificate Transparency standard, often formatted in JSON. Additionally, it can be a Lotus Domino Stash File used by IBM software to securely store passwords for key databases, or a SampleTank User Preset file created by IK Multimedia.
How to open STH files?
Because the .STH extension has multiple possible meanings, you need to know the specific file type before opening it. For example, a cross-stitch pattern requires Stitch Art Easy!, while a Lotus Domino Stash File requires an IBM server environment. A signed Tree Head file is often plain text and can be opened with a standard text editor.
Inspect and View .STH Files Online
If you do not know which program created your file, viewer.online/sth can help. You can analyze .STH files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
Using viewer.online/sth is highly useful for identifying, inspecting, and understanding .STH files without installing unknown software or dealing with compatibility problems.